Support for password resets

.github/workflows/tests.yml

@@ -2,29 +2,25 @@ name: Run tests
 on: [push, pull_request]
 
 jobs:
-
   test:
     name: Test repo
     runs-on: ubuntu-latest
     steps:
+      - name: Set up Go 1.13
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.13
+        id: go
 
-    - name: Set up Go 1.13
+      - name: Check out code into the Go module directory
-      uses: actions/setup-go@v1
+        uses: actions/checkout@v2
-      with:
-        go-version: 1.13
-      id: go
-
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v2
-
-    - name: Get dependencies
-      run: |
-        go get -v -t -d ./...
-
-    - name: Run tests
-      id: tests
-      env:
-        IN_TRAVIS_CI: yes
-      run: go test -v ./...
 
+      - name: Get dependencies
+        run: |
+          go get -v -t -d ./...
 
+      - name: Run tests
+        id: tests
+        env:
+          IN_TRAVIS_CI: yes
+        run: go test -v -p 1 ./...

codes/.gitignore

@@ -0,0 +1,2 @@
+
+codes

codes/Makefile

@@ -0,0 +1,22 @@
+
+GOPATH:=$(shell go env GOPATH)
+.PHONY: init
+init:
+	go get -u github.com/golang/protobuf/proto
+	go get -u github.com/golang/protobuf/protoc-gen-go
+	go get github.com/micro/micro/v3/cmd/protoc-gen-micro
+.PHONY: proto
+proto:
+	protoc --proto_path=. --micro_out=. --go_out=:. proto/codes.proto
+	
+.PHONY: build
+build:
+	go build -o codes *.go
+
+.PHONY: test
+test:
+	go test -v ./... -cover
+
+.PHONY: docker
+docker:
+	docker build . -t codes:latest

codes/README.md

@@ -0,0 +1,3 @@
+# Codes Service
+
+The codes service generates codes for use with email / sms verification

codes/handler/create.go

@@ -0,0 +1,42 @@
+package handler
+
+import (
+	"context"
+	"math/rand"
+	"strconv"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/codes/proto"
+)
+
+func (c *Codes) Create(ctx context.Context, req *pb.CreateRequest, rsp *pb.CreateResponse) error {
+	// validate the request
+	if len(req.Identity) == 0 {
+		return ErrMissingIdentity
+	}
+
+	// construct the code
+	code := Code{Code: generateCode(), Identity: req.Identity}
+	if req.ExpiresAt != nil {
+		code.ExpiresAt = req.ExpiresAt.AsTime()
+	} else {
+		code.ExpiresAt = c.Time().Add(DefaultTTL)
+	}
+
+	// write to the database
+	if err := c.DB.Create(&code).Error; err != nil {
+		logger.Errorf("Error creating code in database: %v", err)
+		return errors.InternalServerError("DATABASE_ERORR", "Error connecting to database")
+	}
+
+	// return the code
+	rsp.Code = code.Code
+	return nil
+}
+
+// generateCode generates a random 8 digit code
+func generateCode() string {
+	v := rand.Intn(89999999) + 10000000
+	return strconv.Itoa(v)
+}

codes/handler/create_test.go

@@ -0,0 +1,39 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/codes/handler"
+	pb "github.com/micro/services/codes/proto"
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/protobuf/types/known/timestamppb"
+)
+
+func TestCreate(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingIdentity", func(t *testing.T) {
+		var rsp pb.CreateResponse
+		err := h.Create(context.TODO(), &pb.CreateRequest{}, &rsp)
+		assert.Equal(t, handler.ErrMissingIdentity, err)
+		assert.Empty(t, rsp.Code)
+	})
+
+	t.Run("NoExpiry", func(t *testing.T) {
+		var rsp pb.CreateResponse
+		err := h.Create(context.TODO(), &pb.CreateRequest{Identity: "07503196715"}, &rsp)
+		assert.NoError(t, err)
+		assert.NotEmpty(t, rsp.Code)
+	})
+
+	t.Run("WithExpiry", func(t *testing.T) {
+		var rsp pb.CreateResponse
+		err := h.Create(context.TODO(), &pb.CreateRequest{
+			Identity:  "demo@m3o.com",
+			ExpiresAt: timestamppb.Now(),
+		}, &rsp)
+		assert.NoError(t, err)
+		assert.NotEmpty(t, rsp.Code)
+	})
+}

codes/handler/handler.go

@@ -0,0 +1,28 @@
+package handler
+
+import (
+	"time"
+
+	"github.com/micro/micro/v3/service/errors"
+	"gorm.io/gorm"
+)
+
+var (
+	ErrMissingCode     = errors.BadRequest("MISSING_CODE", "Missing code")
+	ErrMissingIdentity = errors.BadRequest("MISSING_IDENTITY", "Missing identity")
+	ErrInvalidCode     = errors.BadRequest("INVALID_CODE", "Invalid code")
+	ErrExpiredCode     = errors.BadRequest("EXPIRED_CODE", "Expired code")
+
+	DefaultTTL = time.Minute * 5
+)
+
+type Codes struct {
+	DB   *gorm.DB
+	Time func() time.Time
+}
+
+type Code struct {
+	Code      string `gorm:"index:codeIdentity"`
+	Identity  string `gorm:"index:codeIdentity"`
+	ExpiresAt time.Time
+}

codes/handler/handler_test.go

@@ -0,0 +1,30 @@
+package handler_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/micro/services/codes/handler"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+)
+
+func testHandler(t *testing.T) *handler.Codes {
+	// connect to the database
+	db, err := gorm.Open(postgres.Open("postgresql://postgres@localhost:5432/codes?sslmode=disable"), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("Error connecting to database: %v", err)
+	}
+
+	// migrate the database
+	if err := db.AutoMigrate(&handler.Code{}); err != nil {
+		t.Fatalf("Error migrating database: %v", err)
+	}
+
+	// clean any data from a previous run
+	if err := db.Exec("TRUNCATE TABLE codes CASCADE").Error; err != nil {
+		t.Fatalf("Error cleaning database: %v", err)
+	}
+
+	return &handler.Codes{DB: db, Time: time.Now}
+}

codes/handler/verify.go

@@ -0,0 +1,36 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/codes/proto"
+	"gorm.io/gorm"
+)
+
+func (c *Codes) Verify(ctx context.Context, req *pb.VerifyRequest, rsp *pb.VerifyResponse) error {
+	// validate the request
+	if len(req.Code) == 0 {
+		return ErrMissingCode
+	}
+	if len(req.Identity) == 0 {
+		return ErrMissingIdentity
+	}
+
+	// lookup the code
+	var code Code
+	if err := c.DB.Where(&Code{Code: req.Code, Identity: req.Identity}).First(&code).Error; err == gorm.ErrRecordNotFound {
+		return ErrInvalidCode
+	} else if err != nil {
+		logger.Errorf("Error reading code from database: %v", err)
+		return errors.InternalServerError("DATABASE_ERORR", "Error connecting to database")
+	}
+
+	// check the invite hasn't expired
+	if code.ExpiresAt.Before(c.Time()) {
+		return ErrExpiredCode
+	}
+
+	return nil
+}

codes/handler/verify_test.go

@@ -0,0 +1,60 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/micro/services/codes/handler"
+	pb "github.com/micro/services/codes/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestVerify(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingIdentity", func(t *testing.T) {
+		var rsp pb.VerifyResponse
+		err := h.Verify(context.TODO(), &pb.VerifyRequest{Code: "123456"}, &rsp)
+		assert.Equal(t, handler.ErrMissingIdentity, err)
+	})
+
+	t.Run("MissingCode", func(t *testing.T) {
+		var rsp pb.VerifyResponse
+		err := h.Verify(context.TODO(), &pb.VerifyRequest{Identity: "demo@m3o.com"}, &rsp)
+		assert.Equal(t, handler.ErrMissingCode, err)
+	})
+
+	// generate a code to test
+	var cRsp pb.CreateResponse
+	err := h.Create(context.TODO(), &pb.CreateRequest{Identity: "demo@m3o.com"}, &cRsp)
+	assert.NoError(t, err)
+
+	t.Run("IncorrectCode", func(t *testing.T) {
+		var rsp pb.VerifyResponse
+		err := h.Verify(context.TODO(), &pb.VerifyRequest{Identity: "demo@m3o.com", Code: "12345"}, &rsp)
+		assert.Equal(t, handler.ErrInvalidCode, err)
+	})
+
+	t.Run("IncorrectEmail", func(t *testing.T) {
+		var rsp pb.VerifyResponse
+		err := h.Verify(context.TODO(), &pb.VerifyRequest{Identity: "john@m3o.com", Code: cRsp.Code}, &rsp)
+		assert.Equal(t, handler.ErrInvalidCode, err)
+	})
+
+	t.Run("ExpiredCode", func(t *testing.T) {
+		ot := h.Time
+		h.Time = func() time.Time { return time.Now().Add(handler.DefaultTTL * 2) }
+		defer func() { h.Time = ot }()
+
+		var rsp pb.VerifyResponse
+		err := h.Verify(context.TODO(), &pb.VerifyRequest{Identity: "demo@m3o.com", Code: cRsp.Code}, &rsp)
+		assert.Equal(t, handler.ErrExpiredCode, err)
+	})
+
+	t.Run("ValidCode", func(t *testing.T) {
+		var rsp pb.VerifyResponse
+		err := h.Verify(context.TODO(), &pb.VerifyRequest{Identity: "demo@m3o.com", Code: cRsp.Code}, &rsp)
+		assert.NoError(t, err)
+	})
+}

codes/main.go

@@ -0,0 +1,46 @@
+package main
+
+import (
+	"time"
+
+	"github.com/micro/services/codes/handler"
+	pb "github.com/micro/services/codes/proto"
+
+	"github.com/micro/micro/v3/service"
+	"github.com/micro/micro/v3/service/config"
+	"github.com/micro/micro/v3/service/logger"
+	"gorm.io/driver/postgres"
+	"gorm.io/gorm"
+)
+
+var dbAddress = "postgresql://postgres:postgres@localhost:5432/codes?sslmode=disable"
+
+func main() {
+	// Create service
+	srv := service.New(
+		service.Name("codes"),
+		service.Version("latest"),
+	)
+
+	// Connect to the database
+	cfg, err := config.Get("codes.database")
+	if err != nil {
+		logger.Fatalf("Error loading config: %v", err)
+	}
+	addr := cfg.String(dbAddress)
+	db, err := gorm.Open(postgres.Open(addr), &gorm.Config{})
+	if err != nil {
+		logger.Fatalf("Error connecting to database: %v", err)
+	}
+	if err := db.AutoMigrate(&handler.Code{}); err != nil {
+		logger.Fatalf("Error migrating database: %v", err)
+	}
+
+	// Register handler
+	pb.RegisterCodesHandler(srv.Server(), &handler.Codes{DB: db, Time: time.Now})
+
+	// Run service
+	if err := srv.Run(); err != nil {
+		logger.Fatal(err)
+	}
+}

codes/micro.mu

@@ -0,0 +1 @@
+service codes

codes/proto/codes.pb.go

@@ -0,0 +1,362 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.23.0
+// 	protoc        v3.13.0
+// source: proto/codes.proto
+
+package codes
+
+import (
+	proto "github.com/golang/protobuf/proto"
+	timestamp "github.com/golang/protobuf/ptypes/timestamp"
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+const (
+	// Verify that this generated code is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
+	// Verify that runtime/protoimpl is sufficiently up-to-date.
+	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
+)
+
+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type CreateRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Identity  string               `protobuf:"bytes,1,opt,name=identity,proto3" json:"identity,omitempty"`                    // e.g. phone number or email being verified
+	ExpiresAt *timestamp.Timestamp `protobuf:"bytes,2,opt,name=expires_at,json=expiresAt,proto3" json:"expires_at,omitempty"` // expiry time for the code, default 5 minutes
+}
+
+func (x *CreateRequest) Reset() {
+	*x = CreateRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_codes_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CreateRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateRequest) ProtoMessage() {}
+
+func (x *CreateRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_codes_proto_msgTypes[0]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreateRequest.ProtoReflect.Descriptor instead.
+func (*CreateRequest) Descriptor() ([]byte, []int) {
+	return file_proto_codes_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *CreateRequest) GetIdentity() string {
+	if x != nil {
+		return x.Identity
+	}
+	return ""
+}
+
+func (x *CreateRequest) GetExpiresAt() *timestamp.Timestamp {
+	if x != nil {
+		return x.ExpiresAt
+	}
+	return nil
+}
+
+type CreateResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Code string `protobuf:"bytes,1,opt,name=code,proto3" json:"code,omitempty"`
+}
+
+func (x *CreateResponse) Reset() {
+	*x = CreateResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_codes_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CreateResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateResponse) ProtoMessage() {}
+
+func (x *CreateResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_codes_proto_msgTypes[1]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use CreateResponse.ProtoReflect.Descriptor instead.
+func (*CreateResponse) Descriptor() ([]byte, []int) {
+	return file_proto_codes_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *CreateResponse) GetCode() string {
+	if x != nil {
+		return x.Code
+	}
+	return ""
+}
+
+type VerifyRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Code     string `protobuf:"bytes,1,opt,name=code,proto3" json:"code,omitempty"`
+	Identity string `protobuf:"bytes,2,opt,name=identity,proto3" json:"identity,omitempty"`
+}
+
+func (x *VerifyRequest) Reset() {
+	*x = VerifyRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_codes_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VerifyRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VerifyRequest) ProtoMessage() {}
+
+func (x *VerifyRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_codes_proto_msgTypes[2]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VerifyRequest.ProtoReflect.Descriptor instead.
+func (*VerifyRequest) Descriptor() ([]byte, []int) {
+	return file_proto_codes_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *VerifyRequest) GetCode() string {
+	if x != nil {
+		return x.Code
+	}
+	return ""
+}
+
+func (x *VerifyRequest) GetIdentity() string {
+	if x != nil {
+		return x.Identity
+	}
+	return ""
+}
+
+type VerifyResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *VerifyResponse) Reset() {
+	*x = VerifyResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_codes_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *VerifyResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*VerifyResponse) ProtoMessage() {}
+
+func (x *VerifyResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_codes_proto_msgTypes[3]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use VerifyResponse.ProtoReflect.Descriptor instead.
+func (*VerifyResponse) Descriptor() ([]byte, []int) {
+	return file_proto_codes_proto_rawDescGZIP(), []int{3}
+}
+
+var File_proto_codes_proto protoreflect.FileDescriptor
+
+var file_proto_codes_proto_rawDesc = []byte{
+	0x0a, 0x11, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x2f, 0x63, 0x6f, 0x64, 0x65, 0x73, 0x2e, 0x70, 0x72,
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+	0x43, 0x6f, 0x64, 0x65, 0x73, 0x12, 0x35, 0x0a, 0x06, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x12,
+	0x14, 0x2e, 0x63, 0x6f, 0x64, 0x65, 0x73, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x52, 0x65,
+	0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x15, 0x2e, 0x63, 0x6f, 0x64, 0x65, 0x73, 0x2e, 0x43, 0x72,
+	0x65, 0x61, 0x74, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x35, 0x0a, 0x06,
+	0x56, 0x65, 0x72, 0x69, 0x66, 0x79, 0x12, 0x14, 0x2e, 0x63, 0x6f, 0x64, 0x65, 0x73, 0x2e, 0x56,
+	0x65, 0x72, 0x69, 0x66, 0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x15, 0x2e, 0x63,
+	0x6f, 0x64, 0x65, 0x73, 0x2e, 0x56, 0x65, 0x72, 0x69, 0x66, 0x79, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x42, 0x0d, 0x5a, 0x0b, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x3b, 0x63, 0x6f, 0x64,
+	0x65, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+}
+
+var (
+	file_proto_codes_proto_rawDescOnce sync.Once
+	file_proto_codes_proto_rawDescData = file_proto_codes_proto_rawDesc
+)
+
+func file_proto_codes_proto_rawDescGZIP() []byte {
+	file_proto_codes_proto_rawDescOnce.Do(func() {
+		file_proto_codes_proto_rawDescData = protoimpl.X.CompressGZIP(file_proto_codes_proto_rawDescData)
+	})
+	return file_proto_codes_proto_rawDescData
+}
+
+var file_proto_codes_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_proto_codes_proto_goTypes = []interface{}{
+	(*CreateRequest)(nil),       // 0: codes.CreateRequest
+	(*CreateResponse)(nil),      // 1: codes.CreateResponse
+	(*VerifyRequest)(nil),       // 2: codes.VerifyRequest
+	(*VerifyResponse)(nil),      // 3: codes.VerifyResponse
+	(*timestamp.Timestamp)(nil), // 4: google.protobuf.Timestamp
+}
+var file_proto_codes_proto_depIdxs = []int32{
+	4, // 0: codes.CreateRequest.expires_at:type_name -> google.protobuf.Timestamp
+	0, // 1: codes.Codes.Create:input_type -> codes.CreateRequest
+	2, // 2: codes.Codes.Verify:input_type -> codes.VerifyRequest
+	1, // 3: codes.Codes.Create:output_type -> codes.CreateResponse
+	3, // 4: codes.Codes.Verify:output_type -> codes.VerifyResponse
+	3, // [3:5] is the sub-list for method output_type
+	1, // [1:3] is the sub-list for method input_type
+	1, // [1:1] is the sub-list for extension type_name
+	1, // [1:1] is the sub-list for extension extendee
+	0, // [0:1] is the sub-list for field type_name
+}
+
+func init() { file_proto_codes_proto_init() }
+func file_proto_codes_proto_init() {
+	if File_proto_codes_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_proto_codes_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CreateRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_codes_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*CreateResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_codes_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*VerifyRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_codes_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*VerifyResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_proto_codes_proto_rawDesc,
+			NumEnums:      0,
+			NumMessages:   4,
+			NumExtensions: 0,
+			NumServices:   1,
+		},
+		GoTypes:           file_proto_codes_proto_goTypes,
+		DependencyIndexes: file_proto_codes_proto_depIdxs,
+		MessageInfos:      file_proto_codes_proto_msgTypes,
+	}.Build()
+	File_proto_codes_proto = out.File
+	file_proto_codes_proto_rawDesc = nil
+	file_proto_codes_proto_goTypes = nil
+	file_proto_codes_proto_depIdxs = nil
+}

codes/proto/codes.pb.micro.go

@@ -0,0 +1,111 @@
+// Code generated by protoc-gen-micro. DO NOT EDIT.
+// source: proto/codes.proto
+
+package codes
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	_ "github.com/golang/protobuf/ptypes/timestamp"
+	math "math"
+)
+
+import (
+	context "context"
+	api "github.com/micro/micro/v3/service/api"
+	client "github.com/micro/micro/v3/service/client"
+	server "github.com/micro/micro/v3/service/server"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ api.Endpoint
+var _ context.Context
+var _ client.Option
+var _ server.Option
+
+// Api Endpoints for Codes service
+
+func NewCodesEndpoints() []*api.Endpoint {
+	return []*api.Endpoint{}
+}
+
+// Client API for Codes service
+
+type CodesService interface {
+	Create(ctx context.Context, in *CreateRequest, opts ...client.CallOption) (*CreateResponse, error)
+	Verify(ctx context.Context, in *VerifyRequest, opts ...client.CallOption) (*VerifyResponse, error)
+}
+
+type codesService struct {
+	c    client.Client
+	name string
+}
+
+func NewCodesService(name string, c client.Client) CodesService {
+	return &codesService{
+		c:    c,
+		name: name,
+	}
+}
+
+func (c *codesService) Create(ctx context.Context, in *CreateRequest, opts ...client.CallOption) (*CreateResponse, error) {
+	req := c.c.NewRequest(c.name, "Codes.Create", in)
+	out := new(CreateResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *codesService) Verify(ctx context.Context, in *VerifyRequest, opts ...client.CallOption) (*VerifyResponse, error) {
+	req := c.c.NewRequest(c.name, "Codes.Verify", in)
+	out := new(VerifyResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for Codes service
+
+type CodesHandler interface {
+	Create(context.Context, *CreateRequest, *CreateResponse) error
+	Verify(context.Context, *VerifyRequest, *VerifyResponse) error
+}
+
+func RegisterCodesHandler(s server.Server, hdlr CodesHandler, opts ...server.HandlerOption) error {
+	type codes interface {
+		Create(ctx context.Context, in *CreateRequest, out *CreateResponse) error
+		Verify(ctx context.Context, in *VerifyRequest, out *VerifyResponse) error
+	}
+	type Codes struct {
+		codes
+	}
+	h := &codesHandler{hdlr}
+	return s.Handle(s.NewHandler(&Codes{h}, opts...))
+}
+
+type codesHandler struct {
+	CodesHandler
+}
+
+func (h *codesHandler) Create(ctx context.Context, in *CreateRequest, out *CreateResponse) error {
+	return h.CodesHandler.Create(ctx, in, out)
+}
+
+func (h *codesHandler) Verify(ctx context.Context, in *VerifyRequest, out *VerifyResponse) error {
+	return h.CodesHandler.Verify(ctx, in, out)
+}

codes/proto/codes.proto

@@ -0,0 +1,26 @@
+syntax = "proto3";
+
+package codes;
+option go_package = "proto;codes";
+import "google/protobuf/timestamp.proto";
+
+service Codes {
+	rpc Create(CreateRequest) returns (CreateResponse);
+	rpc Verify(VerifyRequest) returns (VerifyResponse);
+}
+
+message CreateRequest {
+	string identity = 1; // e.g. phone number or email being verified
+	google.protobuf.Timestamp expires_at = 2; // expiry time for the code, default 5 minutes
+}
+
+message CreateResponse {
+	string code = 1;
+}
+
+message VerifyRequest {
+	string code = 1;
+	string identity = 2;
+}
+
+message VerifyResponse {}

users/Makefile

@@ -20,7 +20,7 @@ build:
 
 .PHONY: test
 test:
-	go test -v ./... -cover
+	go test -v -p 1 ./...
 
 .PHONY: docker
 docker:

users/handler/create.go

@@ -0,0 +1,74 @@
+package handler
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+	"gorm.io/gorm"
+)
+
+// Create a user
+func (u *Users) Create(ctx context.Context, req *pb.CreateRequest, rsp *pb.CreateResponse) error {
+	// validate the request
+	if len(req.FirstName) == 0 {
+		return ErrMissingFirstName
+	}
+	if len(req.LastName) == 0 {
+		return ErrMissingLastName
+	}
+	if len(req.Email) == 0 {
+		return ErrMissingEmail
+	}
+	if !isEmailValid(req.Email) {
+		return ErrInvalidEmail
+	}
+	if len(req.Password) < 8 {
+		return ErrInvalidPassword
+	}
+
+	// hash and salt the password using bcrypt
+	phash, err := hashAndSalt(req.Password)
+	if err != nil {
+		logger.Errorf("Error hasing and salting password: %v", err)
+		return errors.InternalServerError("HASHING_ERROR", "Error hashing password")
+	}
+
+	return u.DB.Transaction(func(tx *gorm.DB) error {
+		// write the user to the database
+		user := &User{
+			ID:        uuid.New().String(),
+			FirstName: req.FirstName,
+			LastName:  req.LastName,
+			Email:     strings.ToLower(req.Email),
+			Password:  phash,
+		}
+		err = u.DB.Create(user).Error
+		if err != nil && strings.Contains(err.Error(), "idx_users_email") {
+			return ErrDuplicateEmail
+		} else if err != nil {
+			logger.Errorf("Error writing to the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// generate a token for the user
+		token := Token{
+			UserID:    user.ID,
+			Key:       uuid.New().String(),
+			ExpiresAt: u.Time().Add(time.Hour * 24 * 7),
+		}
+		if err := tx.Create(&token).Error; err != nil {
+			logger.Errorf("Error writing to the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// serialize the response
+		rsp.User = user.Serialize()
+		rsp.Token = token.Key
+		return nil
+	})
+}

users/handler/create_test.go

@@ -0,0 +1,129 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCreate(t *testing.T) {
+	tt := []struct {
+		Name      string
+		FirstName string
+		LastName  string
+		Email     string
+		Password  string
+		Error     error
+	}{
+		{
+			Name:     "MissingFirstName",
+			LastName: "Doe",
+			Email:    "john@doe.com",
+			Password: "password",
+			Error:    handler.ErrMissingFirstName,
+		},
+		{
+			Name:      "MissingLastName",
+			FirstName: "John",
+			Email:     "john@doe.com",
+			Password:  "password",
+			Error:     handler.ErrMissingLastName,
+		},
+		{
+			Name:      "MissingEmail",
+			FirstName: "John",
+			LastName:  "Doe",
+			Password:  "password",
+			Error:     handler.ErrMissingEmail,
+		},
+		{
+			Name:      "InvalidEmail",
+			FirstName: "John",
+			LastName:  "Doe",
+			Password:  "password",
+			Email:     "foo.foo.foo",
+			Error:     handler.ErrInvalidEmail,
+		},
+		{
+			Name:      "InvalidPassword",
+			FirstName: "John",
+			LastName:  "Doe",
+			Email:     "john@doe.com",
+			Password:  "pwd",
+			Error:     handler.ErrInvalidPassword,
+		},
+	}
+
+	// test the validations
+	h := testHandler(t)
+	for _, tc := range tt {
+		t.Run(tc.Name, func(t *testing.T) {
+			err := h.Create(context.TODO(), &pb.CreateRequest{
+				FirstName: tc.FirstName,
+				LastName:  tc.LastName,
+				Email:     tc.Email,
+				Password:  tc.Password,
+			}, &pb.CreateResponse{})
+			assert.Equal(t, tc.Error, err)
+		})
+	}
+
+	t.Run("Valid", func(t *testing.T) {
+		var rsp pb.CreateResponse
+		req := pb.CreateRequest{
+			FirstName: "John",
+			LastName:  "Doe",
+			Email:     "john@doe.com",
+			Password:  "passwordabc",
+		}
+		err := h.Create(context.TODO(), &req, &rsp)
+
+		assert.NoError(t, err)
+		u := rsp.User
+		if u == nil {
+			t.Fatalf("No user returned")
+		}
+		assert.NotEmpty(t, u.Id)
+		assert.Equal(t, req.FirstName, u.FirstName)
+		assert.Equal(t, req.LastName, u.LastName)
+		assert.Equal(t, req.Email, u.Email)
+		assert.NotEmpty(t, rsp.Token)
+	})
+
+	t.Run("DuplicateEmail", func(t *testing.T) {
+		var rsp pb.CreateResponse
+		req := pb.CreateRequest{
+			FirstName: "John",
+			LastName:  "Doe",
+			Email:     "john@doe.com",
+			Password:  "passwordabc",
+		}
+		err := h.Create(context.TODO(), &req, &rsp)
+		assert.Equal(t, handler.ErrDuplicateEmail, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("DifferentEmail", func(t *testing.T) {
+		var rsp pb.CreateResponse
+		req := pb.CreateRequest{
+			FirstName: "John",
+			LastName:  "Doe",
+			Email:     "johndoe@gmail.com",
+			Password:  "passwordabc",
+		}
+		err := h.Create(context.TODO(), &req, &rsp)
+
+		assert.NoError(t, err)
+		u := rsp.User
+		if u == nil {
+			t.Fatalf("No user returned")
+		}
+		assert.NotEmpty(t, u.Id)
+		assert.Equal(t, req.FirstName, u.FirstName)
+		assert.Equal(t, req.LastName, u.LastName)
+		assert.Equal(t, req.Email, u.Email)
+	})
+}

users/handler/delete.go

@@ -0,0 +1,34 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+	"gorm.io/gorm"
+)
+
+// Delete a user
+func (u *Users) Delete(ctx context.Context, req *pb.DeleteRequest, rsp *pb.DeleteResponse) error {
+	// validate the request
+	if len(req.Id) == 0 {
+		return ErrMissingID
+	}
+
+	// delete the users tokens
+	return u.DB.Transaction(func(tx *gorm.DB) error {
+		if err := tx.Delete(&Token{}, &Token{UserID: req.Id}).Error; err != nil {
+			logger.Errorf("Error writing to the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// delete from the database
+		if err := tx.Delete(&User{}, &User{ID: req.Id}).Error; err != nil {
+			logger.Errorf("Error writing to the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		return nil
+	})
+}

users/handler/delete_test.go

@@ -0,0 +1,56 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestDelete(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingID", func(t *testing.T) {
+		err := h.Delete(context.TODO(), &pb.DeleteRequest{}, &pb.DeleteResponse{})
+		assert.Equal(t, handler.ErrMissingID, err)
+	})
+
+	// create some mock data
+	var cRsp pb.CreateResponse
+	cReq := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &cReq, &cRsp)
+	assert.NoError(t, err)
+	if cRsp.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	t.Run("Valid", func(t *testing.T) {
+		err := h.Delete(context.TODO(), &pb.DeleteRequest{
+			Id: cRsp.User.Id,
+		}, &pb.DeleteResponse{})
+		assert.NoError(t, err)
+
+		// check it was actually deleted
+		var rsp pb.ReadResponse
+		err = h.Read(context.TODO(), &pb.ReadRequest{
+			Ids: []string{cRsp.User.Id},
+		}, &rsp)
+		assert.NoError(t, err)
+		assert.Nil(t, rsp.Users[cRsp.User.Id])
+	})
+
+	t.Run("Retry", func(t *testing.T) {
+		err := h.Delete(context.TODO(), &pb.DeleteRequest{
+			Id: cRsp.User.Id,
+		}, &pb.DeleteResponse{})
+		assert.NoError(t, err)
+	})
+}

users/handler/handler.go

@@ -1,14 +1,10 @@
 package handler
 
 import (
-	"context"
 	"regexp"
-	"strings"
 	"time"
 
-	"github.com/google/uuid"
 	"github.com/micro/micro/v3/service/errors"
-	"github.com/micro/micro/v3/service/logger"
 	pb "github.com/micro/services/users/proto"
 	"golang.org/x/crypto/bcrypt"
 	"gorm.io/gorm"
@@ -21,6 +17,7 @@ var (
 	ErrDuplicateEmail    = errors.BadRequest("DUPLICATE_EMAIL", "A user with this email address already exists")
 	ErrInvalidEmail      = errors.BadRequest("INVALID_EMAIL", "The email provided is invalid")
 	ErrInvalidPassword   = errors.BadRequest("INVALID_PASSWORD", "Password must be at least 8 characters long")
+	ErrMissingEmails     = errors.BadRequest("MISSING_EMAILS", "One or more emails are required")
 	ErrMissingIDs        = errors.BadRequest("MISSING_IDS", "One or more ids are required")
 	ErrMissingID         = errors.BadRequest("MISSING_ID", "Missing ID")
 	ErrMissingToken      = errors.BadRequest("MISSING_TOKEN", "Missing token")
@@ -65,288 +62,6 @@ type Users struct {
 	Time func() time.Time
 }
 
-// Create a user
-func (u *Users) Create(ctx context.Context, req *pb.CreateRequest, rsp *pb.CreateResponse) error {
-	// validate the request
-	if len(req.FirstName) == 0 {
-		return ErrMissingFirstName
-	}
-	if len(req.LastName) == 0 {
-		return ErrMissingLastName
-	}
-	if len(req.Email) == 0 {
-		return ErrMissingEmail
-	}
-	if !isEmailValid(req.Email) {
-		return ErrInvalidEmail
-	}
-	if len(req.Password) < 8 {
-		return ErrInvalidPassword
-	}
-
-	// hash and salt the password using bcrypt
-	phash, err := hashAndSalt(req.Password)
-	if err != nil {
-		logger.Errorf("Error hasing and salting password: %v", err)
-		return errors.InternalServerError("HASHING_ERROR", "Error hashing password")
-	}
-
-	return u.DB.Transaction(func(tx *gorm.DB) error {
-		// write the user to the database
-		user := &User{
-			ID:        uuid.New().String(),
-			FirstName: req.FirstName,
-			LastName:  req.LastName,
-			Email:     strings.ToLower(req.Email),
-			Password:  phash,
-		}
-		err = u.DB.Create(user).Error
-		if err != nil && strings.Contains(err.Error(), "idx_users_email") {
-			return ErrDuplicateEmail
-		} else if err != nil {
-			logger.Errorf("Error writing to the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// generate a token for the user
-		token := Token{
-			UserID:    user.ID,
-			Key:       uuid.New().String(),
-			ExpiresAt: u.Time().Add(time.Hour * 24 * 7),
-		}
-		if err := tx.Create(&token).Error; err != nil {
-			logger.Errorf("Error writing to the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// serialize the response
-		rsp.User = user.Serialize()
-		rsp.Token = token.Key
-		return nil
-	})
-}
-
-// Read users using ID
-func (u *Users) Read(ctx context.Context, req *pb.ReadRequest, rsp *pb.ReadResponse) error {
-	// validate the request
-	if len(req.Ids) == 0 {
-		return ErrMissingIDs
-	}
-
-	// query the database
-	var users []User
-	if err := u.DB.Model(&User{}).Where("id IN (?)", req.Ids).Find(&users).Error; err != nil {
-		logger.Errorf("Error reading from the database: %v", err)
-		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-	}
-
-	// serialize the response
-	rsp.Users = make(map[string]*pb.User, len(users))
-	for _, u := range users {
-		rsp.Users[u.ID] = u.Serialize()
-	}
-	return nil
-}
-
-// Update a user
-func (u *Users) Update(ctx context.Context, req *pb.UpdateRequest, rsp *pb.UpdateResponse) error {
-	// validate the request
-	if len(req.Id) == 0 {
-		return ErrMissingID
-	}
-	if req.FirstName != nil && len(req.FirstName.Value) == 0 {
-		return ErrMissingFirstName
-	}
-	if req.LastName != nil && len(req.LastName.Value) == 0 {
-		return ErrMissingLastName
-	}
-	if req.Email != nil && len(req.Email.Value) == 0 {
-		return ErrMissingEmail
-	}
-	if req.Email != nil && !isEmailValid(req.Email.Value) {
-		return ErrInvalidEmail
-	}
-
-	// lookup the user
-	var user User
-	if err := u.DB.Where(&User{ID: req.Id}).First(&user).Error; err == gorm.ErrRecordNotFound {
-		return ErrNotFound
-	} else if err != nil {
-		logger.Errorf("Error reading from the database: %v", err)
-		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-	}
-
-	// assign the updated values
-	if req.FirstName != nil {
-		user.FirstName = req.FirstName.Value
-	}
-	if req.LastName != nil {
-		user.LastName = req.LastName.Value
-	}
-	if req.Email != nil {
-		user.Email = strings.ToLower(req.Email.Value)
-	}
-
-	// write the user to the database
-	err := u.DB.Save(user).Error
-	if err != nil && strings.Contains(err.Error(), "idx_users_email") {
-		return ErrDuplicateEmail
-	} else if err != nil {
-		logger.Errorf("Error writing to the database: %v", err)
-		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-	}
-
-	// serialize the user
-	rsp.User = user.Serialize()
-	return nil
-}
-
-// Delete a user
-func (u *Users) Delete(ctx context.Context, req *pb.DeleteRequest, rsp *pb.DeleteResponse) error {
-	// validate the request
-	if len(req.Id) == 0 {
-		return ErrMissingID
-	}
-
-	// delete the users tokens
-	return u.DB.Transaction(func(tx *gorm.DB) error {
-		if err := tx.Delete(&Token{}, &Token{UserID: req.Id}).Error; err != nil {
-			logger.Errorf("Error writing to the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// delete from the database
-		if err := tx.Delete(&User{}, &User{ID: req.Id}).Error; err != nil {
-			logger.Errorf("Error writing to the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		return nil
-	})
-}
-
-// List all users
-func (u *Users) List(ctx context.Context, req *pb.ListRequest, rsp *pb.ListResponse) error {
-	// query the database
-	var users []User
-	if err := u.DB.Model(&User{}).Find(&users).Error; err != nil {
-		logger.Errorf("Error reading from the database: %v", err)
-		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-	}
-
-	// serialize the response
-	rsp.Users = make([]*pb.User, len(users))
-	for i, u := range users {
-		rsp.Users[i] = u.Serialize()
-	}
-	return nil
-}
-
-// Login using email and password returns the users profile and a token
-func (u *Users) Login(ctx context.Context, req *pb.LoginRequest, rsp *pb.LoginResponse) error {
-	// validate the request
-	if len(req.Email) == 0 {
-		return ErrMissingEmail
-	}
-	if len(req.Password) == 0 {
-		return ErrInvalidPassword
-	}
-
-	return u.DB.Transaction(func(tx *gorm.DB) error {
-		// lookup the user
-		var user User
-		if err := tx.Where(&User{Email: req.Email}).First(&user).Error; err == gorm.ErrRecordNotFound {
-			return ErrNotFound
-		} else if err != nil {
-			logger.Errorf("Error reading from the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// compare the passwords
-		if !passwordsMatch(user.Password, req.Password) {
-			return ErrIncorrectPassword
-		}
-
-		// generate a token for the user
-		token := Token{
-			UserID:    user.ID,
-			Key:       uuid.New().String(),
-			ExpiresAt: u.Time().Add(tokenTTL),
-		}
-		if err := tx.Create(&token).Error; err != nil {
-			logger.Errorf("Error writing to the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// serialize the response
-		rsp.Token = token.Key
-		rsp.User = user.Serialize()
-		return nil
-	})
-}
-
-// Logout expires all tokens for the user
-func (u *Users) Logout(ctx context.Context, req *pb.LogoutRequest, rsp *pb.LogoutResponse) error {
-	// validate the request
-	if len(req.Id) == 0 {
-		return ErrMissingID
-	}
-
-	return u.DB.Transaction(func(tx *gorm.DB) error {
-		// lookup the user
-		var user User
-		if err := tx.Where(&User{ID: req.Id}).Preload("Tokens").First(&user).Error; err == gorm.ErrRecordNotFound {
-			return ErrNotFound
-		} else if err != nil {
-			logger.Errorf("Error reading from the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// delete the tokens
-		if err := tx.Delete(user.Tokens).Error; err != nil {
-			logger.Errorf("Error deleting from the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		return nil
-	})
-}
-
-// Validate a token, each time a token is validated it extends its lifetime for another week
-func (u *Users) Validate(ctx context.Context, req *pb.ValidateRequest, rsp *pb.ValidateResponse) error {
-	// validate the request
-	if len(req.Token) == 0 {
-		return ErrMissingToken
-	}
-
-	return u.DB.Transaction(func(tx *gorm.DB) error {
-		// lookup the token
-		var token Token
-		if err := tx.Where(&Token{Key: req.Token}).Preload("User").First(&token).Error; err == gorm.ErrRecordNotFound {
-			return ErrInvalidToken
-		} else if err != nil {
-			logger.Errorf("Error reading from the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// ensure the token is valid
-		if u.Time().After(token.ExpiresAt) {
-			return ErrTokenExpired
-		}
-
-		// extend the token for another lifetime
-		token.ExpiresAt = u.Time().Add(tokenTTL)
-		if err := tx.Save(&token).Error; err != nil {
-			logger.Errorf("Error writing to the database: %v", err)
-			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
-		}
-
-		// serialize the response
-		rsp.User = token.User.Serialize()
-		return nil
-	})
-}
-
 // isEmailValid checks if the email provided passes the required structure and length.
 func isEmailValid(e string) bool {
 	if len(e) < 3 && len(e) > 254 {

users/handler/handler_test.go

@@ -1,13 +1,10 @@
 package handler_test
 
 import (
-	"context"
 	"testing"
 	"time"
 
-	"github.com/google/uuid"
 	"github.com/stretchr/testify/assert"
-	"google.golang.org/protobuf/types/known/wrapperspb"
 
 	"github.com/micro/services/users/handler"
 	pb "github.com/micro/services/users/proto"
@@ -35,627 +32,6 @@ func testHandler(t *testing.T) *handler.Users {
 	return &handler.Users{DB: db, Time: time.Now}
 }
 
-func TestCreate(t *testing.T) {
-	tt := []struct {
-		Name      string
-		FirstName string
-		LastName  string
-		Email     string
-		Password  string
-		Error     error
-	}{
-		{
-			Name:     "MissingFirstName",
-			LastName: "Doe",
-			Email:    "john@doe.com",
-			Password: "password",
-			Error:    handler.ErrMissingFirstName,
-		},
-		{
-			Name:      "MissingLastName",
-			FirstName: "John",
-			Email:     "john@doe.com",
-			Password:  "password",
-			Error:     handler.ErrMissingLastName,
-		},
-		{
-			Name:      "MissingEmail",
-			FirstName: "John",
-			LastName:  "Doe",
-			Password:  "password",
-			Error:     handler.ErrMissingEmail,
-		},
-		{
-			Name:      "InvalidEmail",
-			FirstName: "John",
-			LastName:  "Doe",
-			Password:  "password",
-			Email:     "foo.foo.foo",
-			Error:     handler.ErrInvalidEmail,
-		},
-		{
-			Name:      "InvalidPassword",
-			FirstName: "John",
-			LastName:  "Doe",
-			Email:     "john@doe.com",
-			Password:  "pwd",
-			Error:     handler.ErrInvalidPassword,
-		},
-	}
-
-	// test the validations
-	h := testHandler(t)
-	for _, tc := range tt {
-		t.Run(tc.Name, func(t *testing.T) {
-			err := h.Create(context.TODO(), &pb.CreateRequest{
-				FirstName: tc.FirstName,
-				LastName:  tc.LastName,
-				Email:     tc.Email,
-				Password:  tc.Password,
-			}, &pb.CreateResponse{})
-			assert.Equal(t, tc.Error, err)
-		})
-	}
-
-	t.Run("Valid", func(t *testing.T) {
-		var rsp pb.CreateResponse
-		req := pb.CreateRequest{
-			FirstName: "John",
-			LastName:  "Doe",
-			Email:     "john@doe.com",
-			Password:  "passwordabc",
-		}
-		err := h.Create(context.TODO(), &req, &rsp)
-
-		assert.NoError(t, err)
-		u := rsp.User
-		if u == nil {
-			t.Fatalf("No user returned")
-		}
-		assert.NotEmpty(t, u.Id)
-		assert.Equal(t, req.FirstName, u.FirstName)
-		assert.Equal(t, req.LastName, u.LastName)
-		assert.Equal(t, req.Email, u.Email)
-		assert.NotEmpty(t, rsp.Token)
-	})
-
-	t.Run("DuplicateEmail", func(t *testing.T) {
-		var rsp pb.CreateResponse
-		req := pb.CreateRequest{
-			FirstName: "John",
-			LastName:  "Doe",
-			Email:     "john@doe.com",
-			Password:  "passwordabc",
-		}
-		err := h.Create(context.TODO(), &req, &rsp)
-		assert.Equal(t, handler.ErrDuplicateEmail, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("DifferentEmail", func(t *testing.T) {
-		var rsp pb.CreateResponse
-		req := pb.CreateRequest{
-			FirstName: "John",
-			LastName:  "Doe",
-			Email:     "johndoe@gmail.com",
-			Password:  "passwordabc",
-		}
-		err := h.Create(context.TODO(), &req, &rsp)
-
-		assert.NoError(t, err)
-		u := rsp.User
-		if u == nil {
-			t.Fatalf("No user returned")
-		}
-		assert.NotEmpty(t, u.Id)
-		assert.Equal(t, req.FirstName, u.FirstName)
-		assert.Equal(t, req.LastName, u.LastName)
-		assert.Equal(t, req.Email, u.Email)
-	})
-}
-
-func TestRead(t *testing.T) {
-	h := testHandler(t)
-
-	t.Run("MissingIDs", func(t *testing.T) {
-		var rsp pb.ReadResponse
-		err := h.Read(context.TODO(), &pb.ReadRequest{}, &rsp)
-		assert.Equal(t, handler.ErrMissingIDs, err)
-		assert.Nil(t, rsp.Users)
-	})
-
-	t.Run("NotFound", func(t *testing.T) {
-		var rsp pb.ReadResponse
-		err := h.Read(context.TODO(), &pb.ReadRequest{Ids: []string{"foo"}}, &rsp)
-		assert.Nil(t, err)
-		if rsp.Users == nil {
-			t.Fatal("Expected the users object to not be nil")
-		}
-		assert.Nil(t, rsp.Users["foo"])
-	})
-
-	// create some mock data
-	var rsp1 pb.CreateResponse
-	req1 := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "john@doe.com",
-		Password:  "passwordabc",
-	}
-	err := h.Create(context.TODO(), &req1, &rsp1)
-	assert.NoError(t, err)
-	if rsp1.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	var rsp2 pb.CreateResponse
-	req2 := pb.CreateRequest{
-		FirstName: "Apple",
-		LastName:  "Tree",
-		Email:     "apple@tree.com",
-		Password:  "passwordabc",
-	}
-	err = h.Create(context.TODO(), &req2, &rsp2)
-	assert.NoError(t, err)
-	if rsp2.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	// test the read
-	var rsp pb.ReadResponse
-	err = h.Read(context.TODO(), &pb.ReadRequest{
-		Ids: []string{rsp1.User.Id, rsp2.User.Id},
-	}, &rsp)
-	assert.NoError(t, err)
-
-	if rsp.Users == nil {
-		t.Fatal("Users not returned")
-		return
-	}
-	assert.NotNil(t, rsp.Users[rsp1.User.Id])
-	assert.NotNil(t, rsp.Users[rsp2.User.Id])
-
-	// check the users match
-	if u := rsp.Users[rsp1.User.Id]; u != nil {
-		assert.Equal(t, rsp1.User.Id, u.Id)
-		assert.Equal(t, rsp1.User.FirstName, u.FirstName)
-		assert.Equal(t, rsp1.User.LastName, u.LastName)
-		assert.Equal(t, rsp1.User.Email, u.Email)
-	}
-	if u := rsp.Users[rsp2.User.Id]; u != nil {
-		assert.Equal(t, rsp2.User.Id, u.Id)
-		assert.Equal(t, rsp2.User.FirstName, u.FirstName)
-		assert.Equal(t, rsp2.User.LastName, u.LastName)
-		assert.Equal(t, rsp2.User.Email, u.Email)
-	}
-}
-
-func TestUpdate(t *testing.T) {
-	h := testHandler(t)
-
-	t.Run("MissingID", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{}, &rsp)
-		assert.Equal(t, handler.ErrMissingID, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("NotFound", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{Id: "foo"}, &rsp)
-		assert.Equal(t, handler.ErrNotFound, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	// create some mock data
-	var cRsp1 pb.CreateResponse
-	cReq1 := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "john@doe.com",
-		Password:  "passwordabc",
-	}
-	err := h.Create(context.TODO(), &cReq1, &cRsp1)
-	assert.NoError(t, err)
-	if cRsp1.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	var cRsp2 pb.CreateResponse
-	cReq2 := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "johndoe@gmail.com",
-		Password:  "passwordabc",
-	}
-	err = h.Create(context.TODO(), &cReq2, &cRsp2)
-	assert.NoError(t, err)
-	if cRsp2.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	t.Run("BlankFirstName", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{
-			Id: cRsp1.User.Id, FirstName: &wrapperspb.StringValue{},
-		}, &rsp)
-		assert.Equal(t, handler.ErrMissingFirstName, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("BlankLastName", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{
-			Id: cRsp1.User.Id, LastName: &wrapperspb.StringValue{},
-		}, &rsp)
-		assert.Equal(t, handler.ErrMissingLastName, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("BlankLastName", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{
-			Id: cRsp1.User.Id, LastName: &wrapperspb.StringValue{},
-		}, &rsp)
-		assert.Equal(t, handler.ErrMissingLastName, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("BlankEmail", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{
-			Id: cRsp1.User.Id, Email: &wrapperspb.StringValue{},
-		}, &rsp)
-		assert.Equal(t, handler.ErrMissingEmail, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("InvalidEmail", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{
-			Id: cRsp1.User.Id, Email: &wrapperspb.StringValue{Value: "foo.bar"},
-		}, &rsp)
-		assert.Equal(t, handler.ErrInvalidEmail, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("EmailAlreadyExists", func(t *testing.T) {
-		var rsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &pb.UpdateRequest{
-			Id: cRsp1.User.Id, Email: &wrapperspb.StringValue{Value: cRsp2.User.Email},
-		}, &rsp)
-		assert.Equal(t, handler.ErrDuplicateEmail, err)
-		assert.Nil(t, rsp.User)
-	})
-
-	t.Run("Valid", func(t *testing.T) {
-		uReq := pb.UpdateRequest{
-			Id:        cRsp1.User.Id,
-			Email:     &wrapperspb.StringValue{Value: "foobar@gmail.com"},
-			FirstName: &wrapperspb.StringValue{Value: "Foo"},
-			LastName:  &wrapperspb.StringValue{Value: "Bar"},
-		}
-		var uRsp pb.UpdateResponse
-		err := h.Update(context.TODO(), &uReq, &uRsp)
-		assert.NoError(t, err)
-		if uRsp.User == nil {
-			t.Error("No user returned")
-			return
-		}
-		assert.Equal(t, cRsp1.User.Id, uRsp.User.Id)
-		assert.Equal(t, uReq.Email.Value, uRsp.User.Email)
-		assert.Equal(t, uReq.FirstName.Value, uRsp.User.FirstName)
-		assert.Equal(t, uReq.LastName.Value, uRsp.User.LastName)
-	})
-}
-
-func TestDelete(t *testing.T) {
-	h := testHandler(t)
-
-	t.Run("MissingID", func(t *testing.T) {
-		err := h.Delete(context.TODO(), &pb.DeleteRequest{}, &pb.DeleteResponse{})
-		assert.Equal(t, handler.ErrMissingID, err)
-	})
-
-	// create some mock data
-	var cRsp pb.CreateResponse
-	cReq := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "john@doe.com",
-		Password:  "passwordabc",
-	}
-	err := h.Create(context.TODO(), &cReq, &cRsp)
-	assert.NoError(t, err)
-	if cRsp.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	t.Run("Valid", func(t *testing.T) {
-		err := h.Delete(context.TODO(), &pb.DeleteRequest{
-			Id: cRsp.User.Id,
-		}, &pb.DeleteResponse{})
-		assert.NoError(t, err)
-
-		// check it was actually deleted
-		var rsp pb.ReadResponse
-		err = h.Read(context.TODO(), &pb.ReadRequest{
-			Ids: []string{cRsp.User.Id},
-		}, &rsp)
-		assert.NoError(t, err)
-		assert.Nil(t, rsp.Users[cRsp.User.Id])
-	})
-
-	t.Run("Retry", func(t *testing.T) {
-		err := h.Delete(context.TODO(), &pb.DeleteRequest{
-			Id: cRsp.User.Id,
-		}, &pb.DeleteResponse{})
-		assert.NoError(t, err)
-	})
-}
-
-func TestList(t *testing.T) {
-	h := testHandler(t)
-
-	// create some mock data
-	var cRsp1 pb.CreateResponse
-	cReq1 := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "john@doe.com",
-		Password:  "passwordabc",
-	}
-	err := h.Create(context.TODO(), &cReq1, &cRsp1)
-	assert.NoError(t, err)
-	if cRsp1.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	var cRsp2 pb.CreateResponse
-	cReq2 := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "johndoe@gmail.com",
-		Password:  "passwordabc",
-	}
-	err = h.Create(context.TODO(), &cReq2, &cRsp2)
-	assert.NoError(t, err)
-	if cRsp2.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	var rsp pb.ListResponse
-	err = h.List(context.TODO(), &pb.ListRequest{}, &rsp)
-	assert.NoError(t, err)
-	if rsp.Users == nil {
-		t.Error("No users returned")
-		return
-	}
-
-	var u1Found, u2Found bool
-	for _, u := range rsp.Users {
-		switch u.Id {
-		case cRsp1.User.Id:
-			assertUsersMatch(t, cRsp1.User, u)
-			u1Found = true
-		case cRsp2.User.Id:
-			assertUsersMatch(t, cRsp2.User, u)
-			u2Found = true
-		default:
-			t.Fatal("Unexpected user returned")
-			return
-		}
-	}
-	assert.True(t, u1Found)
-	assert.True(t, u2Found)
-}
-
-func TestLogin(t *testing.T) {
-	h := testHandler(t)
-
-	// create some mock data
-	var cRsp pb.CreateResponse
-	cReq := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "john@doe.com",
-		Password:  "passwordabc",
-	}
-	err := h.Create(context.TODO(), &cReq, &cRsp)
-	assert.NoError(t, err)
-	if cRsp.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	tt := []struct {
-		Name     string
-		Email    string
-		Password string
-		Error    error
-		User     *pb.User
-	}{
-		{
-			Name:     "MissingEmail",
-			Password: "passwordabc",
-			Error:    handler.ErrMissingEmail,
-		},
-		{
-			Name:  "MissingPassword",
-			Email: "john@doe.com",
-			Error: handler.ErrInvalidPassword,
-		},
-		{
-			Name:     "UserNotFound",
-			Email:    "foo@bar.com",
-			Password: "passwordabc",
-			Error:    handler.ErrNotFound,
-		},
-		{
-			Name:     "IncorrectPassword",
-			Email:    "john@doe.com",
-			Password: "passwordabcdef",
-			Error:    handler.ErrIncorrectPassword,
-		},
-		{
-			Name:     "Valid",
-			Email:    "john@doe.com",
-			Password: "passwordabc",
-			User:     cRsp.User,
-		},
-	}
-
-	for _, tc := range tt {
-		t.Run(tc.Name, func(t *testing.T) {
-			var rsp pb.LoginResponse
-			err := h.Login(context.TODO(), &pb.LoginRequest{
-				Email: tc.Email, Password: tc.Password,
-			}, &rsp)
-			assert.Equal(t, tc.Error, err)
-
-			if tc.User != nil {
-				assertUsersMatch(t, tc.User, rsp.User)
-				assert.NotEmpty(t, rsp.Token)
-			} else {
-				assert.Nil(t, tc.User)
-			}
-		})
-	}
-}
-
-func TestLogout(t *testing.T) {
-	h := testHandler(t)
-
-	t.Run("MissingUserID", func(t *testing.T) {
-		err := h.Logout(context.TODO(), &pb.LogoutRequest{}, &pb.LogoutResponse{})
-		assert.Equal(t, handler.ErrMissingID, err)
-	})
-
-	t.Run("UserNotFound", func(t *testing.T) {
-		err := h.Logout(context.TODO(), &pb.LogoutRequest{Id: uuid.New().String()}, &pb.LogoutResponse{})
-		assert.Equal(t, handler.ErrNotFound, err)
-	})
-
-	t.Run("Valid", func(t *testing.T) {
-		// create some mock data
-		var cRsp pb.CreateResponse
-		cReq := pb.CreateRequest{
-			FirstName: "John",
-			LastName:  "Doe",
-			Email:     "john@doe.com",
-			Password:  "passwordabc",
-		}
-		err := h.Create(context.TODO(), &cReq, &cRsp)
-		assert.NoError(t, err)
-		if cRsp.User == nil {
-			t.Fatal("No user returned")
-			return
-		}
-
-		err = h.Logout(context.TODO(), &pb.LogoutRequest{Id: cRsp.User.Id}, &pb.LogoutResponse{})
-		assert.NoError(t, err)
-
-		err = h.Validate(context.TODO(), &pb.ValidateRequest{Token: cRsp.Token}, &pb.ValidateResponse{})
-		assert.Error(t, err)
-	})
-}
-
-func TestValidate(t *testing.T) {
-	h := testHandler(t)
-
-	// create some mock data
-	var cRsp1 pb.CreateResponse
-	cReq1 := pb.CreateRequest{
-		FirstName: "John",
-		LastName:  "Doe",
-		Email:     "john@doe.com",
-		Password:  "passwordabc",
-	}
-	err := h.Create(context.TODO(), &cReq1, &cRsp1)
-	assert.NoError(t, err)
-	if cRsp1.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	var cRsp2 pb.CreateResponse
-	cReq2 := pb.CreateRequest{
-		FirstName: "Barry",
-		LastName:  "Doe",
-		Email:     "barry@doe.com",
-		Password:  "passwordabc",
-	}
-	err = h.Create(context.TODO(), &cReq2, &cRsp2)
-	assert.NoError(t, err)
-	if cRsp2.User == nil {
-		t.Fatal("No user returned")
-		return
-	}
-
-	tt := []struct {
-		Name  string
-		Token string
-		Time  func() time.Time
-		Error error
-		User  *pb.User
-	}{
-		{
-			Name:  "MissingToken",
-			Error: handler.ErrMissingToken,
-		},
-		{
-			Name:  "InvalidToken",
-			Error: handler.ErrInvalidToken,
-			Token: uuid.New().String(),
-		},
-		{
-			Name:  "ExpiredToken",
-			Error: handler.ErrTokenExpired,
-			Token: cRsp1.Token,
-			Time:  func() time.Time { return time.Now().Add(time.Hour * 24 * 8) },
-		},
-		{
-			Name:  "ValidToken",
-			User:  cRsp2.User,
-			Token: cRsp2.Token,
-			Time:  func() time.Time { return time.Now().Add(time.Hour * 24 * 3) },
-		},
-		{
-			Name:  "RefreshedToken",
-			User:  cRsp2.User,
-			Token: cRsp2.Token,
-			Time:  func() time.Time { return time.Now().Add(time.Hour * 24 * 8) },
-		},
-	}
-
-	for _, tc := range tt {
-		t.Run(tc.Name, func(t *testing.T) {
-			if tc.Time == nil {
-				h.Time = time.Now
-			} else {
-				h.Time = tc.Time
-			}
-
-			var rsp pb.ValidateResponse
-			err := h.Validate(context.TODO(), &pb.ValidateRequest{Token: tc.Token}, &rsp)
-			assert.Equal(t, tc.Error, err)
-
-			if tc.User != nil {
-				assertUsersMatch(t, tc.User, rsp.User)
-			} else {
-				assert.Nil(t, tc.User)
-			}
-		})
-	}
-}
-
 func assertUsersMatch(t *testing.T, exp, act *pb.User) {
 	if act == nil {
 		t.Error("No user returned")

users/handler/list.go

@@ -0,0 +1,26 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+)
+
+// List all users
+func (u *Users) List(ctx context.Context, req *pb.ListRequest, rsp *pb.ListResponse) error {
+	// query the database
+	var users []User
+	if err := u.DB.Model(&User{}).Find(&users).Error; err != nil {
+		logger.Errorf("Error reading from the database: %v", err)
+		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+	}
+
+	// serialize the response
+	rsp.Users = make([]*pb.User, len(users))
+	for i, u := range users {
+		rsp.Users[i] = u.Serialize()
+	}
+	return nil
+}

users/handler/list_test.go

@@ -0,0 +1,67 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestList(t *testing.T) {
+	h := testHandler(t)
+
+	// create some mock data
+	var cRsp1 pb.CreateResponse
+	cReq1 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &cReq1, &cRsp1)
+	assert.NoError(t, err)
+	if cRsp1.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	var cRsp2 pb.CreateResponse
+	cReq2 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "johndoe@gmail.com",
+		Password:  "passwordabc",
+	}
+	err = h.Create(context.TODO(), &cReq2, &cRsp2)
+	assert.NoError(t, err)
+	if cRsp2.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	var rsp pb.ListResponse
+	err = h.List(context.TODO(), &pb.ListRequest{}, &rsp)
+	assert.NoError(t, err)
+	if rsp.Users == nil {
+		t.Error("No users returned")
+		return
+	}
+
+	var u1Found, u2Found bool
+	for _, u := range rsp.Users {
+		switch u.Id {
+		case cRsp1.User.Id:
+			assertUsersMatch(t, cRsp1.User, u)
+			u1Found = true
+		case cRsp2.User.Id:
+			assertUsersMatch(t, cRsp2.User, u)
+			u2Found = true
+		default:
+			t.Fatal("Unexpected user returned")
+			return
+		}
+	}
+	assert.True(t, u1Found)
+	assert.True(t, u2Found)
+}

users/handler/login.go

@@ -0,0 +1,54 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/google/uuid"
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+	"gorm.io/gorm"
+)
+
+// Login using email and password returns the users profile and a token
+func (u *Users) Login(ctx context.Context, req *pb.LoginRequest, rsp *pb.LoginResponse) error {
+	// validate the request
+	if len(req.Email) == 0 {
+		return ErrMissingEmail
+	}
+	if len(req.Password) == 0 {
+		return ErrInvalidPassword
+	}
+
+	return u.DB.Transaction(func(tx *gorm.DB) error {
+		// lookup the user
+		var user User
+		if err := tx.Where(&User{Email: req.Email}).First(&user).Error; err == gorm.ErrRecordNotFound {
+			return ErrNotFound
+		} else if err != nil {
+			logger.Errorf("Error reading from the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// compare the passwords
+		if !passwordsMatch(user.Password, req.Password) {
+			return ErrIncorrectPassword
+		}
+
+		// generate a token for the user
+		token := Token{
+			UserID:    user.ID,
+			Key:       uuid.New().String(),
+			ExpiresAt: u.Time().Add(tokenTTL),
+		}
+		if err := tx.Create(&token).Error; err != nil {
+			logger.Errorf("Error writing to the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// serialize the response
+		rsp.Token = token.Key
+		rsp.User = user.Serialize()
+		return nil
+	})
+}

users/handler/login_test.go

@@ -0,0 +1,83 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLogin(t *testing.T) {
+	h := testHandler(t)
+
+	// create some mock data
+	var cRsp pb.CreateResponse
+	cReq := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &cReq, &cRsp)
+	assert.NoError(t, err)
+	if cRsp.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	tt := []struct {
+		Name     string
+		Email    string
+		Password string
+		Error    error
+		User     *pb.User
+	}{
+		{
+			Name:     "MissingEmail",
+			Password: "passwordabc",
+			Error:    handler.ErrMissingEmail,
+		},
+		{
+			Name:  "MissingPassword",
+			Email: "john@doe.com",
+			Error: handler.ErrInvalidPassword,
+		},
+		{
+			Name:     "UserNotFound",
+			Email:    "foo@bar.com",
+			Password: "passwordabc",
+			Error:    handler.ErrNotFound,
+		},
+		{
+			Name:     "IncorrectPassword",
+			Email:    "john@doe.com",
+			Password: "passwordabcdef",
+			Error:    handler.ErrIncorrectPassword,
+		},
+		{
+			Name:     "Valid",
+			Email:    "john@doe.com",
+			Password: "passwordabc",
+			User:     cRsp.User,
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.Name, func(t *testing.T) {
+			var rsp pb.LoginResponse
+			err := h.Login(context.TODO(), &pb.LoginRequest{
+				Email: tc.Email, Password: tc.Password,
+			}, &rsp)
+			assert.Equal(t, tc.Error, err)
+
+			if tc.User != nil {
+				assertUsersMatch(t, tc.User, rsp.User)
+				assert.NotEmpty(t, rsp.Token)
+			} else {
+				assert.Nil(t, tc.User)
+			}
+		})
+	}
+}

users/handler/logout.go

@@ -0,0 +1,37 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+	"gorm.io/gorm"
+)
+
+// Logout expires all tokens for the user
+func (u *Users) Logout(ctx context.Context, req *pb.LogoutRequest, rsp *pb.LogoutResponse) error {
+	// validate the request
+	if len(req.Id) == 0 {
+		return ErrMissingID
+	}
+
+	return u.DB.Transaction(func(tx *gorm.DB) error {
+		// lookup the user
+		var user User
+		if err := tx.Where(&User{ID: req.Id}).Preload("Tokens").First(&user).Error; err == gorm.ErrRecordNotFound {
+			return ErrNotFound
+		} else if err != nil {
+			logger.Errorf("Error reading from the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// delete the tokens
+		if err := tx.Delete(user.Tokens).Error; err != nil {
+			logger.Errorf("Error deleting from the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		return nil
+	})
+}

users/handler/logout_test.go

@@ -0,0 +1,48 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestLogout(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingUserID", func(t *testing.T) {
+		err := h.Logout(context.TODO(), &pb.LogoutRequest{}, &pb.LogoutResponse{})
+		assert.Equal(t, handler.ErrMissingID, err)
+	})
+
+	t.Run("UserNotFound", func(t *testing.T) {
+		err := h.Logout(context.TODO(), &pb.LogoutRequest{Id: uuid.New().String()}, &pb.LogoutResponse{})
+		assert.Equal(t, handler.ErrNotFound, err)
+	})
+
+	t.Run("Valid", func(t *testing.T) {
+		// create some mock data
+		var cRsp pb.CreateResponse
+		cReq := pb.CreateRequest{
+			FirstName: "John",
+			LastName:  "Doe",
+			Email:     "john@doe.com",
+			Password:  "passwordabc",
+		}
+		err := h.Create(context.TODO(), &cReq, &cRsp)
+		assert.NoError(t, err)
+		if cRsp.User == nil {
+			t.Fatal("No user returned")
+			return
+		}
+
+		err = h.Logout(context.TODO(), &pb.LogoutRequest{Id: cRsp.User.Id}, &pb.LogoutResponse{})
+		assert.NoError(t, err)
+
+		err = h.Validate(context.TODO(), &pb.ValidateRequest{Token: cRsp.Token}, &pb.ValidateResponse{})
+		assert.Error(t, err)
+	})
+}

users/handler/read.go

@@ -0,0 +1,31 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+)
+
+// Read users using ID
+func (u *Users) Read(ctx context.Context, req *pb.ReadRequest, rsp *pb.ReadResponse) error {
+	// validate the request
+	if len(req.Ids) == 0 {
+		return ErrMissingIDs
+	}
+
+	// query the database
+	var users []User
+	if err := u.DB.Model(&User{}).Where("id IN (?)", req.Ids).Find(&users).Error; err != nil {
+		logger.Errorf("Error reading from the database: %v", err)
+		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+	}
+
+	// serialize the response
+	rsp.Users = make(map[string]*pb.User, len(users))
+	for _, u := range users {
+		rsp.Users[u.ID] = u.Serialize()
+	}
+	return nil
+}

users/handler/read_by_email.go

@@ -0,0 +1,36 @@
+package handler
+
+import (
+	"context"
+	"strings"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+)
+
+// Read users using email
+func (u *Users) ReadByEmail(ctx context.Context, req *pb.ReadByEmailRequest, rsp *pb.ReadByEmailResponse) error {
+	// validate the request
+	if len(req.Emails) == 0 {
+		return ErrMissingEmails
+	}
+	emails := make([]string, len(req.Emails))
+	for i, e := range req.Emails {
+		emails[i] = strings.ToLower(e)
+	}
+
+	// query the database
+	var users []User
+	if err := u.DB.Model(&User{}).Where("lower(email) IN (?)", emails).Find(&users).Error; err != nil {
+		logger.Errorf("Error reading from the database: %v", err)
+		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+	}
+
+	// serialize the response
+	rsp.Users = make(map[string]*pb.User, len(users))
+	for _, u := range users {
+		rsp.Users[u.Email] = u.Serialize()
+	}
+	return nil
+}

users/handler/read_by_email_test.go

@@ -0,0 +1,89 @@
+package handler_test
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestReadByEmail(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingEmails", func(t *testing.T) {
+		var rsp pb.ReadByEmailResponse
+		err := h.ReadByEmail(context.TODO(), &pb.ReadByEmailRequest{}, &rsp)
+		assert.Equal(t, handler.ErrMissingEmails, err)
+		assert.Nil(t, rsp.Users)
+	})
+
+	t.Run("NotFound", func(t *testing.T) {
+		var rsp pb.ReadByEmailResponse
+		err := h.ReadByEmail(context.TODO(), &pb.ReadByEmailRequest{Emails: []string{"foo"}}, &rsp)
+		assert.Nil(t, err)
+		if rsp.Users == nil {
+			t.Fatal("Expected the users object to not be nil")
+		}
+		assert.Nil(t, rsp.Users["foo"])
+	})
+
+	// create some mock data
+	var rsp1 pb.CreateResponse
+	req1 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &req1, &rsp1)
+	assert.NoError(t, err)
+	if rsp1.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	var rsp2 pb.CreateResponse
+	req2 := pb.CreateRequest{
+		FirstName: "Apple",
+		LastName:  "Tree",
+		Email:     "apple@tree.com",
+		Password:  "passwordabc",
+	}
+	err = h.Create(context.TODO(), &req2, &rsp2)
+	assert.NoError(t, err)
+	if rsp2.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	// test the read
+	var rsp pb.ReadByEmailResponse
+	err = h.ReadByEmail(context.TODO(), &pb.ReadByEmailRequest{
+		Emails: []string{rsp1.User.Email, strings.ToUpper(rsp2.User.Email)},
+	}, &rsp)
+	assert.NoError(t, err)
+
+	if rsp.Users == nil {
+		t.Fatal("Users not returned")
+		return
+	}
+	assert.NotNil(t, rsp.Users[rsp1.User.Email])
+	assert.NotNil(t, rsp.Users[rsp2.User.Email])
+
+	// check the users match
+	if u := rsp.Users[rsp1.User.Email]; u != nil {
+		assert.Equal(t, rsp1.User.Id, u.Id)
+		assert.Equal(t, rsp1.User.FirstName, u.FirstName)
+		assert.Equal(t, rsp1.User.LastName, u.LastName)
+		assert.Equal(t, rsp1.User.Email, u.Email)
+	}
+	if u := rsp.Users[rsp2.User.Email]; u != nil {
+		assert.Equal(t, rsp2.User.Id, u.Id)
+		assert.Equal(t, rsp2.User.FirstName, u.FirstName)
+		assert.Equal(t, rsp2.User.LastName, u.LastName)
+		assert.Equal(t, rsp2.User.Email, u.Email)
+	}
+}

users/handler/read_test.go

@@ -0,0 +1,88 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRead(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingIDs", func(t *testing.T) {
+		var rsp pb.ReadResponse
+		err := h.Read(context.TODO(), &pb.ReadRequest{}, &rsp)
+		assert.Equal(t, handler.ErrMissingIDs, err)
+		assert.Nil(t, rsp.Users)
+	})
+
+	t.Run("NotFound", func(t *testing.T) {
+		var rsp pb.ReadResponse
+		err := h.Read(context.TODO(), &pb.ReadRequest{Ids: []string{"foo"}}, &rsp)
+		assert.Nil(t, err)
+		if rsp.Users == nil {
+			t.Fatal("Expected the users object to not be nil")
+		}
+		assert.Nil(t, rsp.Users["foo"])
+	})
+
+	// create some mock data
+	var rsp1 pb.CreateResponse
+	req1 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &req1, &rsp1)
+	assert.NoError(t, err)
+	if rsp1.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	var rsp2 pb.CreateResponse
+	req2 := pb.CreateRequest{
+		FirstName: "Apple",
+		LastName:  "Tree",
+		Email:     "apple@tree.com",
+		Password:  "passwordabc",
+	}
+	err = h.Create(context.TODO(), &req2, &rsp2)
+	assert.NoError(t, err)
+	if rsp2.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	// test the read
+	var rsp pb.ReadResponse
+	err = h.Read(context.TODO(), &pb.ReadRequest{
+		Ids: []string{rsp1.User.Id, rsp2.User.Id},
+	}, &rsp)
+	assert.NoError(t, err)
+
+	if rsp.Users == nil {
+		t.Fatal("Users not returned")
+		return
+	}
+	assert.NotNil(t, rsp.Users[rsp1.User.Id])
+	assert.NotNil(t, rsp.Users[rsp2.User.Id])
+
+	// check the users match
+	if u := rsp.Users[rsp1.User.Id]; u != nil {
+		assert.Equal(t, rsp1.User.Id, u.Id)
+		assert.Equal(t, rsp1.User.FirstName, u.FirstName)
+		assert.Equal(t, rsp1.User.LastName, u.LastName)
+		assert.Equal(t, rsp1.User.Email, u.Email)
+	}
+	if u := rsp.Users[rsp2.User.Id]; u != nil {
+		assert.Equal(t, rsp2.User.Id, u.Id)
+		assert.Equal(t, rsp2.User.FirstName, u.FirstName)
+		assert.Equal(t, rsp2.User.LastName, u.LastName)
+		assert.Equal(t, rsp2.User.Email, u.Email)
+	}
+}

users/handler/update.go

@@ -0,0 +1,75 @@
+package handler
+
+import (
+	"context"
+	"strings"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+	"gorm.io/gorm"
+)
+
+// Update a user
+func (u *Users) Update(ctx context.Context, req *pb.UpdateRequest, rsp *pb.UpdateResponse) error {
+	// validate the request
+	if len(req.Id) == 0 {
+		return ErrMissingID
+	}
+	if req.FirstName != nil && len(req.FirstName.Value) == 0 {
+		return ErrMissingFirstName
+	}
+	if req.LastName != nil && len(req.LastName.Value) == 0 {
+		return ErrMissingLastName
+	}
+	if req.Email != nil && len(req.Email.Value) == 0 {
+		return ErrMissingEmail
+	}
+	if req.Email != nil && !isEmailValid(req.Email.Value) {
+		return ErrInvalidEmail
+	}
+	if req.Password != nil && len(req.Password.Value) < 8 {
+		return ErrInvalidEmail
+	}
+
+	// lookup the user
+	var user User
+	if err := u.DB.Where(&User{ID: req.Id}).First(&user).Error; err == gorm.ErrRecordNotFound {
+		return ErrNotFound
+	} else if err != nil {
+		logger.Errorf("Error reading from the database: %v", err)
+		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+	}
+
+	// assign the updated values
+	if req.FirstName != nil {
+		user.FirstName = req.FirstName.Value
+	}
+	if req.LastName != nil {
+		user.LastName = req.LastName.Value
+	}
+	if req.Email != nil {
+		user.Email = strings.ToLower(req.Email.Value)
+	}
+	if req.Password != nil {
+		p, err := hashAndSalt(req.Password.Value)
+		if err != nil {
+			logger.Errorf("Error hasing and salting password: %v", err)
+			return errors.InternalServerError("HASHING_ERROR", "Error hashing password")
+		}
+		user.Password = p
+	}
+
+	// write the user to the database
+	err := u.DB.Save(user).Error
+	if err != nil && strings.Contains(err.Error(), "idx_users_email") {
+		return ErrDuplicateEmail
+	} else if err != nil {
+		logger.Errorf("Error writing to the database: %v", err)
+		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+	}
+
+	// serialize the user
+	rsp.User = user.Serialize()
+	return nil
+}

users/handler/update_test.go

@@ -0,0 +1,148 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+	"google.golang.org/protobuf/types/known/wrapperspb"
+)
+
+func TestUpdate(t *testing.T) {
+	h := testHandler(t)
+
+	t.Run("MissingID", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{}, &rsp)
+		assert.Equal(t, handler.ErrMissingID, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("NotFound", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{Id: "foo"}, &rsp)
+		assert.Equal(t, handler.ErrNotFound, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	// create some mock data
+	var cRsp1 pb.CreateResponse
+	cReq1 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &cReq1, &cRsp1)
+	assert.NoError(t, err)
+	if cRsp1.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	var cRsp2 pb.CreateResponse
+	cReq2 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "johndoe@gmail.com",
+		Password:  "passwordabc",
+	}
+	err = h.Create(context.TODO(), &cReq2, &cRsp2)
+	assert.NoError(t, err)
+	if cRsp2.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	t.Run("BlankFirstName", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{
+			Id: cRsp1.User.Id, FirstName: &wrapperspb.StringValue{},
+		}, &rsp)
+		assert.Equal(t, handler.ErrMissingFirstName, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("BlankLastName", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{
+			Id: cRsp1.User.Id, LastName: &wrapperspb.StringValue{},
+		}, &rsp)
+		assert.Equal(t, handler.ErrMissingLastName, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("BlankLastName", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{
+			Id: cRsp1.User.Id, LastName: &wrapperspb.StringValue{},
+		}, &rsp)
+		assert.Equal(t, handler.ErrMissingLastName, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("BlankEmail", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{
+			Id: cRsp1.User.Id, Email: &wrapperspb.StringValue{},
+		}, &rsp)
+		assert.Equal(t, handler.ErrMissingEmail, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("InvalidEmail", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{
+			Id: cRsp1.User.Id, Email: &wrapperspb.StringValue{Value: "foo.bar"},
+		}, &rsp)
+		assert.Equal(t, handler.ErrInvalidEmail, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("EmailAlreadyExists", func(t *testing.T) {
+		var rsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &pb.UpdateRequest{
+			Id: cRsp1.User.Id, Email: &wrapperspb.StringValue{Value: cRsp2.User.Email},
+		}, &rsp)
+		assert.Equal(t, handler.ErrDuplicateEmail, err)
+		assert.Nil(t, rsp.User)
+	})
+
+	t.Run("Valid", func(t *testing.T) {
+		uReq := pb.UpdateRequest{
+			Id:        cRsp1.User.Id,
+			Email:     &wrapperspb.StringValue{Value: "foobar@gmail.com"},
+			FirstName: &wrapperspb.StringValue{Value: "Foo"},
+			LastName:  &wrapperspb.StringValue{Value: "Bar"},
+		}
+		var uRsp pb.UpdateResponse
+		err := h.Update(context.TODO(), &uReq, &uRsp)
+		assert.NoError(t, err)
+		if uRsp.User == nil {
+			t.Error("No user returned")
+			return
+		}
+		assert.Equal(t, cRsp1.User.Id, uRsp.User.Id)
+		assert.Equal(t, uReq.Email.Value, uRsp.User.Email)
+		assert.Equal(t, uReq.FirstName.Value, uRsp.User.FirstName)
+		assert.Equal(t, uReq.LastName.Value, uRsp.User.LastName)
+	})
+
+	t.Run("UpdatePassword", func(t *testing.T) {
+		uReq := pb.UpdateRequest{
+			Id:       cRsp2.User.Id,
+			Password: &wrapperspb.StringValue{Value: "helloworld"},
+		}
+		err := h.Update(context.TODO(), &uReq, &pb.UpdateResponse{})
+		assert.NoError(t, err)
+
+		lReq := pb.LoginRequest{
+			Email:    cRsp2.User.Email,
+			Password: "helloworld",
+		}
+		err = h.Login(context.TODO(), &lReq, &pb.LoginResponse{})
+		assert.NoError(t, err)
+	})
+}

users/handler/validate.go

@@ -0,0 +1,45 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	pb "github.com/micro/services/users/proto"
+	"gorm.io/gorm"
+)
+
+// Validate a token, each time a token is validated it extends its lifetime for another week
+func (u *Users) Validate(ctx context.Context, req *pb.ValidateRequest, rsp *pb.ValidateResponse) error {
+	// validate the request
+	if len(req.Token) == 0 {
+		return ErrMissingToken
+	}
+
+	return u.DB.Transaction(func(tx *gorm.DB) error {
+		// lookup the token
+		var token Token
+		if err := tx.Where(&Token{Key: req.Token}).Preload("User").First(&token).Error; err == gorm.ErrRecordNotFound {
+			return ErrInvalidToken
+		} else if err != nil {
+			logger.Errorf("Error reading from the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// ensure the token is valid
+		if u.Time().After(token.ExpiresAt) {
+			return ErrTokenExpired
+		}
+
+		// extend the token for another lifetime
+		token.ExpiresAt = u.Time().Add(tokenTTL)
+		if err := tx.Save(&token).Error; err != nil {
+			logger.Errorf("Error writing to the database: %v", err)
+			return errors.InternalServerError("DATABASE_ERROR", "Error connecting to the database")
+		}
+
+		// serialize the response
+		rsp.User = token.User.Serialize()
+		return nil
+	})
+}

users/handler/validate_test.go

@@ -0,0 +1,101 @@
+package handler_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/micro/services/users/handler"
+	pb "github.com/micro/services/users/proto"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestValidate(t *testing.T) {
+	h := testHandler(t)
+
+	// create some mock data
+	var cRsp1 pb.CreateResponse
+	cReq1 := pb.CreateRequest{
+		FirstName: "John",
+		LastName:  "Doe",
+		Email:     "john@doe.com",
+		Password:  "passwordabc",
+	}
+	err := h.Create(context.TODO(), &cReq1, &cRsp1)
+	assert.NoError(t, err)
+	if cRsp1.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	var cRsp2 pb.CreateResponse
+	cReq2 := pb.CreateRequest{
+		FirstName: "Barry",
+		LastName:  "Doe",
+		Email:     "barry@doe.com",
+		Password:  "passwordabc",
+	}
+	err = h.Create(context.TODO(), &cReq2, &cRsp2)
+	assert.NoError(t, err)
+	if cRsp2.User == nil {
+		t.Fatal("No user returned")
+		return
+	}
+
+	tt := []struct {
+		Name  string
+		Token string
+		Time  func() time.Time
+		Error error
+		User  *pb.User
+	}{
+		{
+			Name:  "MissingToken",
+			Error: handler.ErrMissingToken,
+		},
+		{
+			Name:  "InvalidToken",
+			Error: handler.ErrInvalidToken,
+			Token: uuid.New().String(),
+		},
+		{
+			Name:  "ExpiredToken",
+			Error: handler.ErrTokenExpired,
+			Token: cRsp1.Token,
+			Time:  func() time.Time { return time.Now().Add(time.Hour * 24 * 8) },
+		},
+		{
+			Name:  "ValidToken",
+			User:  cRsp2.User,
+			Token: cRsp2.Token,
+			Time:  func() time.Time { return time.Now().Add(time.Hour * 24 * 3) },
+		},
+		{
+			Name:  "RefreshedToken",
+			User:  cRsp2.User,
+			Token: cRsp2.Token,
+			Time:  func() time.Time { return time.Now().Add(time.Hour * 24 * 8) },
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.Name, func(t *testing.T) {
+			if tc.Time == nil {
+				h.Time = time.Now
+			} else {
+				h.Time = tc.Time
+			}
+
+			var rsp pb.ValidateResponse
+			err := h.Validate(context.TODO(), &pb.ValidateRequest{Token: tc.Token}, &rsp)
+			assert.Equal(t, tc.Error, err)
+
+			if tc.User != nil {
+				assertUsersMatch(t, tc.User, rsp.User)
+			} else {
+				assert.Nil(t, tc.User)
+			}
+		})
+	}
+}

users/proto/users.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.25.0
+// 	protoc-gen-go v1.23.0
-// 	protoc        v3.6.1
+// 	protoc        v3.13.0
 // source: proto/users.proto
 
 package users
@@ -317,6 +317,100 @@ func (x *ReadResponse) GetUsers() map[string]*User {
 	return nil
 }
 
+type ReadByEmailRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Emails []string `protobuf:"bytes,1,rep,name=emails,proto3" json:"emails,omitempty"`
+}
+
+func (x *ReadByEmailRequest) Reset() {
+	*x = ReadByEmailRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_users_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ReadByEmailRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ReadByEmailRequest) ProtoMessage() {}
+
+func (x *ReadByEmailRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_users_proto_msgTypes[5]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ReadByEmailRequest.ProtoReflect.Descriptor instead.
+func (*ReadByEmailRequest) Descriptor() ([]byte, []int) {
+	return file_proto_users_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *ReadByEmailRequest) GetEmails() []string {
+	if x != nil {
+		return x.Emails
+	}
+	return nil
+}
+
+type ReadByEmailResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Users map[string]*User `protobuf:"bytes,1,rep,name=users,proto3" json:"users,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+}
+
+func (x *ReadByEmailResponse) Reset() {
+	*x = ReadByEmailResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_proto_users_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ReadByEmailResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ReadByEmailResponse) ProtoMessage() {}
+
+func (x *ReadByEmailResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_proto_users_proto_msgTypes[6]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ReadByEmailResponse.ProtoReflect.Descriptor instead.
+func (*ReadByEmailResponse) Descriptor() ([]byte, []int) {
+	return file_proto_users_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *ReadByEmailResponse) GetUsers() map[string]*User {
+	if x != nil {
+		return x.Users
+	}
+	return nil
+}
+
 type UpdateRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -326,12 +420,13 @@ type UpdateRequest struct {
 	FirstName *wrappers.StringValue `protobuf:"bytes,2,opt,name=first_name,json=firstName,proto3" json:"first_name,omitempty"`
 	LastName  *wrappers.StringValue `protobuf:"bytes,3,opt,name=last_name,json=lastName,proto3" json:"last_name,omitempty"`
 	Email     *wrappers.StringValue `protobuf:"bytes,4,opt,name=email,proto3" json:"email,omitempty"`
+	Password  *wrappers.StringValue `protobuf:"bytes,5,opt,name=password,proto3" json:"password,omitempty"`
 }
 
 func (x *UpdateRequest) Reset() {
 	*x = UpdateRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[5]
+		mi := &file_proto_users_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -344,7 +439,7 @@ func (x *UpdateRequest) String() string {
 func (*UpdateRequest) ProtoMessage() {}
 
 func (x *UpdateRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[5]
+	mi := &file_proto_users_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -357,7 +452,7 @@ func (x *UpdateRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use UpdateRequest.ProtoReflect.Descriptor instead.
 func (*UpdateRequest) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{5}
+	return file_proto_users_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *UpdateRequest) GetId() string {
@@ -388,6 +483,13 @@ func (x *UpdateRequest) GetEmail() *wrappers.StringValue {
 	return nil
 }
 
+func (x *UpdateRequest) GetPassword() *wrappers.StringValue {
+	if x != nil {
+		return x.Password
+	}
+	return nil
+}
+
 type UpdateResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -399,7 +501,7 @@ type UpdateResponse struct {
 func (x *UpdateResponse) Reset() {
 	*x = UpdateResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[6]
+		mi := &file_proto_users_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -412,7 +514,7 @@ func (x *UpdateResponse) String() string {
 func (*UpdateResponse) ProtoMessage() {}
 
 func (x *UpdateResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[6]
+	mi := &file_proto_users_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -425,7 +527,7 @@ func (x *UpdateResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use UpdateResponse.ProtoReflect.Descriptor instead.
 func (*UpdateResponse) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{6}
+	return file_proto_users_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *UpdateResponse) GetUser() *User {
@@ -446,7 +548,7 @@ type DeleteRequest struct {
 func (x *DeleteRequest) Reset() {
 	*x = DeleteRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[7]
+		mi := &file_proto_users_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -459,7 +561,7 @@ func (x *DeleteRequest) String() string {
 func (*DeleteRequest) ProtoMessage() {}
 
 func (x *DeleteRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[7]
+	mi := &file_proto_users_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -472,7 +574,7 @@ func (x *DeleteRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DeleteRequest.ProtoReflect.Descriptor instead.
 func (*DeleteRequest) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{7}
+	return file_proto_users_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *DeleteRequest) GetId() string {
@@ -491,7 +593,7 @@ type DeleteResponse struct {
 func (x *DeleteResponse) Reset() {
 	*x = DeleteResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[8]
+		mi := &file_proto_users_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -504,7 +606,7 @@ func (x *DeleteResponse) String() string {
 func (*DeleteResponse) ProtoMessage() {}
 
 func (x *DeleteResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[8]
+	mi := &file_proto_users_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -517,7 +619,7 @@ func (x *DeleteResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DeleteResponse.ProtoReflect.Descriptor instead.
 func (*DeleteResponse) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{8}
+	return file_proto_users_proto_rawDescGZIP(), []int{10}
 }
 
 type ListRequest struct {
@@ -529,7 +631,7 @@ type ListRequest struct {
 func (x *ListRequest) Reset() {
 	*x = ListRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[9]
+		mi := &file_proto_users_proto_msgTypes[11]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -542,7 +644,7 @@ func (x *ListRequest) String() string {
 func (*ListRequest) ProtoMessage() {}
 
 func (x *ListRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[9]
+	mi := &file_proto_users_proto_msgTypes[11]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -555,7 +657,7 @@ func (x *ListRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListRequest.ProtoReflect.Descriptor instead.
 func (*ListRequest) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{9}
+	return file_proto_users_proto_rawDescGZIP(), []int{11}
 }
 
 type ListResponse struct {
@@ -569,7 +671,7 @@ type ListResponse struct {
 func (x *ListResponse) Reset() {
 	*x = ListResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[10]
+		mi := &file_proto_users_proto_msgTypes[12]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -582,7 +684,7 @@ func (x *ListResponse) String() string {
 func (*ListResponse) ProtoMessage() {}
 
 func (x *ListResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[10]
+	mi := &file_proto_users_proto_msgTypes[12]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -595,7 +697,7 @@ func (x *ListResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListResponse.ProtoReflect.Descriptor instead.
 func (*ListResponse) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{10}
+	return file_proto_users_proto_rawDescGZIP(), []int{12}
 }
 
 func (x *ListResponse) GetUsers() []*User {
@@ -617,7 +719,7 @@ type LoginRequest struct {
 func (x *LoginRequest) Reset() {
 	*x = LoginRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[11]
+		mi := &file_proto_users_proto_msgTypes[13]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -630,7 +732,7 @@ func (x *LoginRequest) String() string {
 func (*LoginRequest) ProtoMessage() {}
 
 func (x *LoginRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[11]
+	mi := &file_proto_users_proto_msgTypes[13]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -643,7 +745,7 @@ func (x *LoginRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LoginRequest.ProtoReflect.Descriptor instead.
 func (*LoginRequest) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{11}
+	return file_proto_users_proto_rawDescGZIP(), []int{13}
 }
 
 func (x *LoginRequest) GetEmail() string {
@@ -672,7 +774,7 @@ type LoginResponse struct {
 func (x *LoginResponse) Reset() {
 	*x = LoginResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[12]
+		mi := &file_proto_users_proto_msgTypes[14]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -685,7 +787,7 @@ func (x *LoginResponse) String() string {
 func (*LoginResponse) ProtoMessage() {}
 
 func (x *LoginResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[12]
+	mi := &file_proto_users_proto_msgTypes[14]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -698,7 +800,7 @@ func (x *LoginResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LoginResponse.ProtoReflect.Descriptor instead.
 func (*LoginResponse) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{12}
+	return file_proto_users_proto_rawDescGZIP(), []int{14}
 }
 
 func (x *LoginResponse) GetUser() *User {
@@ -726,7 +828,7 @@ type LogoutRequest struct {
 func (x *LogoutRequest) Reset() {
 	*x = LogoutRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[13]
+		mi := &file_proto_users_proto_msgTypes[15]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -739,7 +841,7 @@ func (x *LogoutRequest) String() string {
 func (*LogoutRequest) ProtoMessage() {}
 
 func (x *LogoutRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[13]
+	mi := &file_proto_users_proto_msgTypes[15]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -752,7 +854,7 @@ func (x *LogoutRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LogoutRequest.ProtoReflect.Descriptor instead.
 func (*LogoutRequest) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{13}
+	return file_proto_users_proto_rawDescGZIP(), []int{15}
 }
 
 func (x *LogoutRequest) GetId() string {
@@ -771,7 +873,7 @@ type LogoutResponse struct {
 func (x *LogoutResponse) Reset() {
 	*x = LogoutResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[14]
+		mi := &file_proto_users_proto_msgTypes[16]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -784,7 +886,7 @@ func (x *LogoutResponse) String() string {
 func (*LogoutResponse) ProtoMessage() {}
 
 func (x *LogoutResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[14]
+	mi := &file_proto_users_proto_msgTypes[16]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -797,7 +899,7 @@ func (x *LogoutResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use LogoutResponse.ProtoReflect.Descriptor instead.
 func (*LogoutResponse) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{14}
+	return file_proto_users_proto_rawDescGZIP(), []int{16}
 }
 
 type ValidateRequest struct {
@@ -811,7 +913,7 @@ type ValidateRequest struct {
 func (x *ValidateRequest) Reset() {
 	*x = ValidateRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[15]
+		mi := &file_proto_users_proto_msgTypes[17]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -824,7 +926,7 @@ func (x *ValidateRequest) String() string {
 func (*ValidateRequest) ProtoMessage() {}
 
 func (x *ValidateRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[15]
+	mi := &file_proto_users_proto_msgTypes[17]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -837,7 +939,7 @@ func (x *ValidateRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ValidateRequest.ProtoReflect.Descriptor instead.
 func (*ValidateRequest) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{15}
+	return file_proto_users_proto_rawDescGZIP(), []int{17}
 }
 
 func (x *ValidateRequest) GetToken() string {
@@ -858,7 +960,7 @@ type ValidateResponse struct {
 func (x *ValidateResponse) Reset() {
 	*x = ValidateResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_proto_users_proto_msgTypes[16]
+		mi := &file_proto_users_proto_msgTypes[18]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -871,7 +973,7 @@ func (x *ValidateResponse) String() string {
 func (*ValidateResponse) ProtoMessage() {}
 
 func (x *ValidateResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_proto_users_proto_msgTypes[16]
+	mi := &file_proto_users_proto_msgTypes[18]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -884,7 +986,7 @@ func (x *ValidateResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ValidateResponse.ProtoReflect.Descriptor instead.
 func (*ValidateResponse) Descriptor() ([]byte, []int) {
-	return file_proto_users_proto_rawDescGZIP(), []int{16}
+	return file_proto_users_proto_rawDescGZIP(), []int{18}
 }
 
 func (x *ValidateResponse) GetUser() *User {
@@ -930,78 +1032,98 @@ var file_proto_users_proto_rawDesc = []byte{
 	0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
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+	0x22, 0x00, 0x12, 0x3d, 0x0a, 0x08, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x65, 0x12, 0x16,
+	0x2e, 0x75, 0x73, 0x65, 0x72, 0x73, 0x2e, 0x56, 0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x65, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x75, 0x73, 0x65, 0x72, 0x73, 0x2e, 0x56,
+	0x61, 0x6c, 0x69, 0x64, 0x61, 0x74, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
+	0x00, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1016,60 +1138,68 @@ func file_proto_users_proto_rawDescGZIP() []byte {
 	return file_proto_users_proto_rawDescData
 }
 
-var file_proto_users_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
+var file_proto_users_proto_msgTypes = make([]protoimpl.MessageInfo, 21)
 var file_proto_users_proto_goTypes = []interface{}{
 	(*User)(nil),                 // 0: users.User
 	(*CreateRequest)(nil),        // 1: users.CreateRequest
 	(*CreateResponse)(nil),       // 2: users.CreateResponse
 	(*ReadRequest)(nil),          // 3: users.ReadRequest
 	(*ReadResponse)(nil),         // 4: users.ReadResponse
-	(*UpdateRequest)(nil),        // 5: users.UpdateRequest
+	(*ReadByEmailRequest)(nil),   // 5: users.ReadByEmailRequest
-	(*UpdateResponse)(nil),       // 6: users.UpdateResponse
+	(*ReadByEmailResponse)(nil),  // 6: users.ReadByEmailResponse
-	(*DeleteRequest)(nil),        // 7: users.DeleteRequest
+	(*UpdateRequest)(nil),        // 7: users.UpdateRequest
-	(*DeleteResponse)(nil),       // 8: users.DeleteResponse
+	(*UpdateResponse)(nil),       // 8: users.UpdateResponse
-	(*ListRequest)(nil),          // 9: users.ListRequest
+	(*DeleteRequest)(nil),        // 9: users.DeleteRequest
-	(*ListResponse)(nil),         // 10: users.ListResponse
+	(*DeleteResponse)(nil),       // 10: users.DeleteResponse
-	(*LoginRequest)(nil),         // 11: users.LoginRequest
+	(*ListRequest)(nil),          // 11: users.ListRequest
-	(*LoginResponse)(nil),        // 12: users.LoginResponse
+	(*ListResponse)(nil),         // 12: users.ListResponse
-	(*LogoutRequest)(nil),        // 13: users.LogoutRequest
+	(*LoginRequest)(nil),         // 13: users.LoginRequest
-	(*LogoutResponse)(nil),       // 14: users.LogoutResponse
+	(*LoginResponse)(nil),        // 14: users.LoginResponse
-	(*ValidateRequest)(nil),      // 15: users.ValidateRequest
+	(*LogoutRequest)(nil),        // 15: users.LogoutRequest
-	(*ValidateResponse)(nil),     // 16: users.ValidateResponse
+	(*LogoutResponse)(nil),       // 16: users.LogoutResponse
-	nil,                          // 17: users.ReadResponse.UsersEntry
+	(*ValidateRequest)(nil),      // 17: users.ValidateRequest
-	(*wrappers.StringValue)(nil), // 18: google.protobuf.StringValue
+	(*ValidateResponse)(nil),     // 18: users.ValidateResponse
+	nil,                          // 19: users.ReadResponse.UsersEntry
+	nil,                          // 20: users.ReadByEmailResponse.UsersEntry
+	(*wrappers.StringValue)(nil), // 21: google.protobuf.StringValue
 }
 var file_proto_users_proto_depIdxs = []int32{
 	0,  // 0: users.CreateResponse.user:type_name -> users.User
-	17, // 1: users.ReadResponse.users:type_name -> users.ReadResponse.UsersEntry
+	19, // 1: users.ReadResponse.users:type_name -> users.ReadResponse.UsersEntry
-	18, // 2: users.UpdateRequest.first_name:type_name -> google.protobuf.StringValue
+	20, // 2: users.ReadByEmailResponse.users:type_name -> users.ReadByEmailResponse.UsersEntry
-	18, // 3: users.UpdateRequest.last_name:type_name -> google.protobuf.StringValue
+	21, // 3: users.UpdateRequest.first_name:type_name -> google.protobuf.StringValue
-	18, // 4: users.UpdateRequest.email:type_name -> google.protobuf.StringValue
+	21, // 4: users.UpdateRequest.last_name:type_name -> google.protobuf.StringValue
-	0,  // 5: users.UpdateResponse.user:type_name -> users.User
+	21, // 5: users.UpdateRequest.email:type_name -> google.protobuf.StringValue
-	0,  // 6: users.ListResponse.users:type_name -> users.User
+	21, // 6: users.UpdateRequest.password:type_name -> google.protobuf.StringValue
-	0,  // 7: users.LoginResponse.user:type_name -> users.User
+	0,  // 7: users.UpdateResponse.user:type_name -> users.User
-	0,  // 8: users.ValidateResponse.user:type_name -> users.User
+	0,  // 8: users.ListResponse.users:type_name -> users.User
-	0,  // 9: users.ReadResponse.UsersEntry.value:type_name -> users.User
+	0,  // 9: users.LoginResponse.user:type_name -> users.User
-	1,  // 10: users.Users.Create:input_type -> users.CreateRequest
+	0,  // 10: users.ValidateResponse.user:type_name -> users.User
-	3,  // 11: users.Users.Read:input_type -> users.ReadRequest
+	0,  // 11: users.ReadResponse.UsersEntry.value:type_name -> users.User
-	5,  // 12: users.Users.Update:input_type -> users.UpdateRequest
+	0,  // 12: users.ReadByEmailResponse.UsersEntry.value:type_name -> users.User
-	7,  // 13: users.Users.Delete:input_type -> users.DeleteRequest
+	1,  // 13: users.Users.Create:input_type -> users.CreateRequest
-	9,  // 14: users.Users.List:input_type -> users.ListRequest
+	3,  // 14: users.Users.Read:input_type -> users.ReadRequest
-	11, // 15: users.Users.Login:input_type -> users.LoginRequest
+	5,  // 15: users.Users.ReadByEmail:input_type -> users.ReadByEmailRequest
-	13, // 16: users.Users.Logout:input_type -> users.LogoutRequest
+	7,  // 16: users.Users.Update:input_type -> users.UpdateRequest
-	15, // 17: users.Users.Validate:input_type -> users.ValidateRequest
+	9,  // 17: users.Users.Delete:input_type -> users.DeleteRequest
-	2,  // 18: users.Users.Create:output_type -> users.CreateResponse
+	11, // 18: users.Users.List:input_type -> users.ListRequest
-	4,  // 19: users.Users.Read:output_type -> users.ReadResponse
+	13, // 19: users.Users.Login:input_type -> users.LoginRequest
-	6,  // 20: users.Users.Update:output_type -> users.UpdateResponse
+	15, // 20: users.Users.Logout:input_type -> users.LogoutRequest
-	8,  // 21: users.Users.Delete:output_type -> users.DeleteResponse
+	17, // 21: users.Users.Validate:input_type -> users.ValidateRequest
-	10, // 22: users.Users.List:output_type -> users.ListResponse
+	2,  // 22: users.Users.Create:output_type -> users.CreateResponse
-	12, // 23: users.Users.Login:output_type -> users.LoginResponse
+	4,  // 23: users.Users.Read:output_type -> users.ReadResponse
-	14, // 24: users.Users.Logout:output_type -> users.LogoutResponse
+	6,  // 24: users.Users.ReadByEmail:output_type -> users.ReadByEmailResponse
-	16, // 25: users.Users.Validate:output_type -> users.ValidateResponse
+	8,  // 25: users.Users.Update:output_type -> users.UpdateResponse
-	18, // [18:26] is the sub-list for method output_type
+	10, // 26: users.Users.Delete:output_type -> users.DeleteResponse
-	10, // [10:18] is the sub-list for method input_type
+	12, // 27: users.Users.List:output_type -> users.ListResponse
-	10, // [10:10] is the sub-list for extension type_name
+	14, // 28: users.Users.Login:output_type -> users.LoginResponse
-	10, // [10:10] is the sub-list for extension extendee
+	16, // 29: users.Users.Logout:output_type -> users.LogoutResponse
-	0,  // [0:10] is the sub-list for field type_name
+	18, // 30: users.Users.Validate:output_type -> users.ValidateResponse
+	22, // [22:31] is the sub-list for method output_type
+	13, // [13:22] is the sub-list for method input_type
+	13, // [13:13] is the sub-list for extension type_name
+	13, // [13:13] is the sub-list for extension extendee
+	0,  // [0:13] is the sub-list for field type_name
 }
 
 func init() { file_proto_users_proto_init() }
@@ -1139,7 +1269,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*UpdateRequest); i {
+			switch v := v.(*ReadByEmailRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1151,7 +1281,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*UpdateResponse); i {
+			switch v := v.(*ReadByEmailResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1163,7 +1293,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DeleteRequest); i {
+			switch v := v.(*UpdateRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1175,7 +1305,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*DeleteResponse); i {
+			switch v := v.(*UpdateResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1187,7 +1317,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListRequest); i {
+			switch v := v.(*DeleteRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1199,7 +1329,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ListResponse); i {
+			switch v := v.(*DeleteResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1211,7 +1341,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LoginRequest); i {
+			switch v := v.(*ListRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1223,7 +1353,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LoginResponse); i {
+			switch v := v.(*ListResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1235,7 +1365,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LogoutRequest); i {
+			switch v := v.(*LoginRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1247,7 +1377,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LogoutResponse); i {
+			switch v := v.(*LoginResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1259,7 +1389,7 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*ValidateRequest); i {
+			switch v := v.(*LogoutRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1271,6 +1401,30 @@ func file_proto_users_proto_init() {
 			}
 		}
 		file_proto_users_proto_msgTypes[16].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LogoutResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_users_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ValidateRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_proto_users_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*ValidateResponse); i {
 			case 0:
 				return &v.state
@@ -1289,7 +1443,7 @@ func file_proto_users_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proto_users_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   18,
+			NumMessages:   21,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

users/proto/users.pb.micro.go

@@ -45,6 +45,7 @@ func NewUsersEndpoints() []*api.Endpoint {
 type UsersService interface {
 	Create(ctx context.Context, in *CreateRequest, opts ...client.CallOption) (*CreateResponse, error)
 	Read(ctx context.Context, in *ReadRequest, opts ...client.CallOption) (*ReadResponse, error)
+	ReadByEmail(ctx context.Context, in *ReadByEmailRequest, opts ...client.CallOption) (*ReadByEmailResponse, error)
 	Update(ctx context.Context, in *UpdateRequest, opts ...client.CallOption) (*UpdateResponse, error)
 	Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error)
 	List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
@@ -88,6 +89,16 @@ func (c *usersService) Read(ctx context.Context, in *ReadRequest, opts ...client
 	return out, nil
 }
 
+func (c *usersService) ReadByEmail(ctx context.Context, in *ReadByEmailRequest, opts ...client.CallOption) (*ReadByEmailResponse, error) {
+	req := c.c.NewRequest(c.name, "Users.ReadByEmail", in)
+	out := new(ReadByEmailResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *usersService) Update(ctx context.Context, in *UpdateRequest, opts ...client.CallOption) (*UpdateResponse, error) {
 	req := c.c.NewRequest(c.name, "Users.Update", in)
 	out := new(UpdateResponse)
@@ -153,6 +164,7 @@ func (c *usersService) Validate(ctx context.Context, in *ValidateRequest, opts .
 type UsersHandler interface {
 	Create(context.Context, *CreateRequest, *CreateResponse) error
 	Read(context.Context, *ReadRequest, *ReadResponse) error
+	ReadByEmail(context.Context, *ReadByEmailRequest, *ReadByEmailResponse) error
 	Update(context.Context, *UpdateRequest, *UpdateResponse) error
 	Delete(context.Context, *DeleteRequest, *DeleteResponse) error
 	List(context.Context, *ListRequest, *ListResponse) error
@@ -168,6 +180,7 @@ func RegisterUsersHandler(s server.Server, hdlr UsersHandler, opts ...server.Han
 	type users interface {
 		Create(ctx context.Context, in *CreateRequest, out *CreateResponse) error
 		Read(ctx context.Context, in *ReadRequest, out *ReadResponse) error
+		ReadByEmail(ctx context.Context, in *ReadByEmailRequest, out *ReadByEmailResponse) error
 		Update(ctx context.Context, in *UpdateRequest, out *UpdateResponse) error
 		Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error
 		List(ctx context.Context, in *ListRequest, out *ListResponse) error
@@ -194,6 +207,10 @@ func (h *usersHandler) Read(ctx context.Context, in *ReadRequest, out *ReadRespo
 	return h.UsersHandler.Read(ctx, in, out)
 }
 
+func (h *usersHandler) ReadByEmail(ctx context.Context, in *ReadByEmailRequest, out *ReadByEmailResponse) error {
+	return h.UsersHandler.ReadByEmail(ctx, in, out)
+}
+
 func (h *usersHandler) Update(ctx context.Context, in *UpdateRequest, out *UpdateResponse) error {
 	return h.UsersHandler.Update(ctx, in, out)
 }

users/proto/users.proto

@@ -7,6 +7,7 @@ import "google/protobuf/wrappers.proto";
 service Users {
 	rpc Create(CreateRequest) returns (CreateResponse) {}
 	rpc Read(ReadRequest) returns (ReadResponse) {}
+	rpc ReadByEmail(ReadByEmailRequest) returns (ReadByEmailResponse) {}
 	rpc Update(UpdateRequest) returns (UpdateResponse) {}
 	rpc Delete(DeleteRequest) returns (DeleteResponse) {}
 	rpc List(ListRequest) returns (ListResponse) {}
@@ -46,11 +47,20 @@ message ReadResponse {
 	map<string,User> users = 1;
 }
 
+message ReadByEmailRequest {
+	repeated string emails = 1;
+}
+
+message ReadByEmailResponse {
+	map<string,User> users = 1;
+}
+
 message UpdateRequest {
 	string id = 1;
 	google.protobuf.StringValue first_name = 2;
 	google.protobuf.StringValue last_name = 3;
 	google.protobuf.StringValue email = 4;
+	google.protobuf.StringValue password = 5;
 }
 
 message UpdateResponse {