One

blog/posts/.gitignore

@@ -0,0 +1,2 @@
+
+./posts

blog/posts/Dockerfile

@@ -0,0 +1,3 @@
+FROM alpine
+ADD post-service /post-service
+ENTRYPOINT [ "/post-service" ]

blog/posts/Makefile

@@ -0,0 +1,22 @@
+
+GOPATH:=$(shell go env GOPATH)
+MODIFY=Mgithub.com/micro/go-micro/api/proto/api.proto=github.com/micro/go-micro/v3/api/proto
+
+.PHONY: proto
+proto:
+    
+	protoc --proto_path=. --micro_out=${MODIFY}:. --go_out=${MODIFY}:. proto/post/post.proto
+    
+
+.PHONY: build
+build: proto
+
+	go build -o post-service *.go
+
+.PHONY: test
+test:
+	go test -v ./... -cover
+
+.PHONY: docker
+docker:
+	docker build . -t post-service:latest

blog/posts/README.md

@@ -0,0 +1,32 @@
+# Post Service
+
+The posts service stores posts
+
+## Usage
+
+### Create a post
+
+```
+micro call posts Posts.Save '{"post":{"id":"1","title":"How to Micro","content":"Simply put, Micro is awesome."}}'
+micro call posts Posts.Save '{"post":{"id":"2","title":"Fresh posts are fresh","content":"This post is fresher than the How to Micro one"}}'
+```
+
+### Create a post with tags
+
+```
+micro call posts Posts.Save '{"post":{"id":"3","title":"How to do epic things with Micro","content":"Everything is awesome.","tagNames":["a","b"]}}'
+```
+
+### Query posts
+
+```
+micro call posts Posts.Query '{}'
+micro call posts Posts.Query '{"slug":"how-to-micro"}'
+micro call posts Posts.Query '{"offset": 10, "limit": 10}'
+```
+
+### Delete posts
+
+```
+micro call posts Posts.Delete '{"offset": 10, "limit": 10}'
+```

blog/posts/generate.go

@@ -0,0 +1,3 @@
+package main
+
+//go:generate make proto

blog/posts/handler/posts.go

@@ -0,0 +1,258 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"math"
+	"time"
+
+	"github.com/micro/go-micro/v3/errors"
+	gostore "github.com/micro/go-micro/v3/store"
+	"github.com/micro/micro/v3/service/logger"
+	"github.com/micro/micro/v3/service/store"
+
+	"github.com/gosimple/slug"
+	pb "github.com/micro/services/blog/posts/proto/posts"
+	posts "github.com/micro/services/blog/posts/proto/posts"
+	tags "github.com/micro/services/blog/tags/proto"
+)
+
+const (
+	tagType         = "post-tag"
+	slugPrefix      = "slug"
+	idPrefix        = "id"
+	timeStampPrefix = "timestamp"
+)
+
+type Post struct {
+	ID              string   `json:"id"`
+	Title           string   `json:"title"`
+	Slug            string   `json:"slug"`
+	Content         string   `json:"content"`
+	CreateTimestamp int64    `json:"create_timestamp"`
+	UpdateTimestamp int64    `json:"update_timestamp"`
+	TagNames        []string `json:"tagNames"`
+}
+
+type Posts struct {
+	Tags tags.TagsService
+}
+
+func (p *Posts) Save(ctx context.Context, req *posts.SaveRequest, rsp *posts.SaveResponse) error {
+	if len(req.Post.Id) == 0 || len(req.Post.Title) == 0 || len(req.Post.Content) == 0 {
+		return errors.BadRequest("posts.save.input-check", "Id, title or content is missing")
+	}
+
+	// read by post
+	records, err := store.Read(fmt.Sprintf("%v:%v", idPrefix, req.Post.Id))
+	if err != nil && err != gostore.ErrNotFound {
+		return errors.InternalServerError("posts.save.store-id-read", "Failed to read post by id: %v", err.Error())
+	}
+	postSlug := slug.Make(req.Post.Title)
+	// If no existing record is found, create a new one
+	if len(records) == 0 {
+		post := &Post{
+			ID:              req.Post.Id,
+			Title:           req.Post.Title,
+			Content:         req.Post.Content,
+			TagNames:        req.Post.TagNames,
+			Slug:            postSlug,
+			CreateTimestamp: time.Now().Unix(),
+		}
+		err := p.savePost(ctx, nil, post)
+		if err != nil {
+			return errors.InternalServerError("posts.save.post-save", "Failed to save new post: %v", err.Error())
+		}
+		return nil
+	}
+	record := records[0]
+	oldPost := &Post{}
+	err = json.Unmarshal(record.Value, oldPost)
+	if err != nil {
+		return errors.InternalServerError("posts.save.unmarshal", "Failed to unmarshal old post: %v", err.Error())
+	}
+	post := &Post{
+		ID:              req.Post.Id,
+		Title:           req.Post.Title,
+		Content:         req.Post.Content,
+		Slug:            postSlug,
+		TagNames:        req.Post.TagNames,
+		CreateTimestamp: oldPost.CreateTimestamp,
+		UpdateTimestamp: time.Now().Unix(),
+	}
+
+	// Check if slug exists
+	recordsBySlug, err := store.Read(fmt.Sprintf("%v:%v", slugPrefix, postSlug))
+	if err != nil && err != gostore.ErrNotFound {
+		return errors.InternalServerError("posts.save.store-read", "Failed to read post by slug: %v", err.Error())
+	}
+	otherSlugPost := &Post{}
+	err = json.Unmarshal(record.Value, otherSlugPost)
+	if err != nil {
+		return errors.InternalServerError("posts.save.slug-unmarshal", "Error unmarshaling other post with same slug: %v", err.Error())
+	}
+	if len(recordsBySlug) > 0 && oldPost.ID != otherSlugPost.ID {
+		return errors.BadRequest("posts.save.slug-check", "An other post with this slug already exists")
+	}
+
+	return p.savePost(ctx, oldPost, post)
+}
+
+func (p *Posts) savePost(ctx context.Context, oldPost, post *Post) error {
+	bytes, err := json.Marshal(post)
+	if err != nil {
+		return err
+	}
+
+	err = store.Write(&gostore.Record{
+		Key:   fmt.Sprintf("%v:%v", idPrefix, post.ID),
+		Value: bytes,
+	})
+	if err != nil {
+		return err
+	}
+	// Delete old slug index if the slug has changed
+	if oldPost != nil && oldPost.Slug != post.Slug {
+		err = store.Delete(fmt.Sprintf("%v:%v", slugPrefix, post.Slug))
+		if err != nil {
+			return err
+		}
+	}
+	err = store.Write(&gostore.Record{
+		Key:   fmt.Sprintf("%v:%v", slugPrefix, post.Slug),
+		Value: bytes,
+	})
+	if err != nil {
+		return err
+	}
+	err = store.Write(&gostore.Record{
+		Key:   fmt.Sprintf("%v:%v", timeStampPrefix, math.MaxInt64-post.CreateTimestamp),
+		Value: bytes,
+	})
+	if err != nil {
+		return err
+	}
+	if oldPost == nil {
+		for _, tagName := range post.TagNames {
+			_, err := p.Tags.IncreaseCount(ctx, &tags.IncreaseCountRequest{
+				ParentID: post.ID,
+				Type:     tagType,
+				Title:    tagName,
+			})
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+	return p.diffTags(ctx, post.ID, oldPost.TagNames, post.TagNames)
+}
+
+func (p *Posts) diffTags(ctx context.Context, parentID string, oldTagNames, newTagNames []string) error {
+	oldTags := map[string]struct{}{}
+	for _, v := range oldTagNames {
+		oldTags[v] = struct{}{}
+	}
+	newTags := map[string]struct{}{}
+	for _, v := range newTagNames {
+		newTags[v] = struct{}{}
+	}
+	for i := range oldTags {
+		_, stillThere := newTags[i]
+		if !stillThere {
+			_, err := p.Tags.DecreaseCount(ctx, &tags.DecreaseCountRequest{
+				ParentID: parentID,
+				Type:     tagType,
+				Title:    i,
+			})
+			if err != nil {
+				logger.Errorf("Error decreasing count for tag '%v' with type '%v' for parent '%v'", i, tagType, parentID)
+			}
+		}
+	}
+	for i := range newTags {
+		_, newlyAdded := oldTags[i]
+		if newlyAdded {
+			_, err := p.Tags.IncreaseCount(ctx, &tags.IncreaseCountRequest{
+				ParentID: parentID,
+				Type:     tagType,
+				Title:    i,
+			})
+			if err != nil {
+				logger.Errorf("Error increasing count for tag '%v' with type '%v' for parent '%v'", i, tagType, parentID)
+			}
+		}
+	}
+	return nil
+}
+
+func (p *Posts) Query(ctx context.Context, req *pb.QueryRequest, rsp *pb.QueryResponse) error {
+	var records []*gostore.Record
+	var err error
+	if len(req.Slug) > 0 {
+		key := fmt.Sprintf("%v:%v", slugPrefix, req.Slug)
+		logger.Infof("Reading post by slug: %v", req.Slug)
+		records, err = store.Read("", store.Prefix(key))
+	} else {
+		key := fmt.Sprintf("%v:", timeStampPrefix)
+		var limit uint
+		limit = 20
+		if req.Limit > 0 {
+			limit = uint(req.Limit)
+		}
+		logger.Infof("Listing posts, offset: %v, limit: %v", req.Offset, limit)
+		records, err = store.Read("", store.Prefix(key),
+			store.Offset(uint(req.Offset)),
+			store.Limit(limit))
+	}
+
+	if err != nil {
+		return errors.BadRequest("posts.query.store-read", "Failed to read from store: %v", err.Error())
+	}
+	rsp.Posts = make([]*pb.Post, len(records))
+	for i, record := range records {
+		postRecord := &Post{}
+		err := json.Unmarshal(record.Value, postRecord)
+		if err != nil {
+			return errors.InternalServerError("posts.save.unmarshal", "Failed to unmarshal old post: %v", err.Error())
+		}
+		rsp.Posts[i] = &pb.Post{
+			Id:       postRecord.ID,
+			Title:    postRecord.Title,
+			Slug:     postRecord.Slug,
+			Content:  postRecord.Content,
+			TagNames: postRecord.TagNames,
+		}
+	}
+	return nil
+}
+
+func (p *Posts) Delete(ctx context.Context, req *pb.DeleteRequest, rsp *pb.DeleteResponse) error {
+	logger.Info("Received Post.Delete request")
+	records, err := store.Read(fmt.Sprintf("%v:%v", idPrefix, req.Id))
+	if err != nil && err != gostore.ErrNotFound {
+		return err
+	}
+	if len(records) == 0 {
+		return fmt.Errorf("Post with ID %v not found", req.Id)
+	}
+	post := &Post{}
+	err = json.Unmarshal(records[0].Value, post)
+	if err != nil {
+		return err
+	}
+
+	// Delete by ID
+	err = store.Delete(fmt.Sprintf("%v:%v", idPrefix, post.ID))
+	if err != nil {
+		return err
+	}
+	// Delete by slug
+	err = store.Delete(fmt.Sprintf("%v:%v", slugPrefix, post.Slug))
+	if err != nil {
+		return err
+	}
+	// Delete by timeStamp
+	return store.Delete(fmt.Sprintf("%v:%v", timeStampPrefix, post.CreateTimestamp))
+}

blog/posts/main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"github.com/micro/micro/v3/service"
+	"github.com/micro/micro/v3/service/logger"
+	"github.com/micro/services/blog/posts/handler"
+	tags "github.com/micro/services/blog/tags/proto"
+)
+
+func main() {
+	// Create the service
+	srv := service.New(
+		service.Name("posts"),
+	)
+
+	// Register Handler
+	srv.Handle(&handler.Posts{
+		Tags: tags.NewTagsService("tags", srv.Client()),
+	})
+
+	// Run service
+	if err := srv.Run(); err != nil {
+		logger.Fatal(err)
+	}
+}

blog/posts/proto/posts/post.pb.go

@@ -0,0 +1,380 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: blog/posts/proto/posts/post.proto
+
+package posts
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	math "math"
+)
+
+// 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
+
+type Post struct {
+	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Title                string   `protobuf:"bytes,2,opt,name=title,proto3" json:"title,omitempty"`
+	Slug                 string   `protobuf:"bytes,3,opt,name=slug,proto3" json:"slug,omitempty"`
+	Content              string   `protobuf:"bytes,4,opt,name=content,proto3" json:"content,omitempty"`
+	Timestamp            int64    `protobuf:"varint,5,opt,name=timestamp,proto3" json:"timestamp,omitempty"`
+	TagNames             []string `protobuf:"bytes,6,rep,name=tagNames,proto3" json:"tagNames,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Post) Reset()         { *m = Post{} }
+func (m *Post) String() string { return proto.CompactTextString(m) }
+func (*Post) ProtoMessage()    {}
+func (*Post) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{0}
+}
+
+func (m *Post) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Post.Unmarshal(m, b)
+}
+func (m *Post) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Post.Marshal(b, m, deterministic)
+}
+func (m *Post) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Post.Merge(m, src)
+}
+func (m *Post) XXX_Size() int {
+	return xxx_messageInfo_Post.Size(m)
+}
+func (m *Post) XXX_DiscardUnknown() {
+	xxx_messageInfo_Post.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Post proto.InternalMessageInfo
+
+func (m *Post) GetId() string {
+	if m != nil {
+		return m.Id
+	}
+	return ""
+}
+
+func (m *Post) GetTitle() string {
+	if m != nil {
+		return m.Title
+	}
+	return ""
+}
+
+func (m *Post) GetSlug() string {
+	if m != nil {
+		return m.Slug
+	}
+	return ""
+}
+
+func (m *Post) GetContent() string {
+	if m != nil {
+		return m.Content
+	}
+	return ""
+}
+
+func (m *Post) GetTimestamp() int64 {
+	if m != nil {
+		return m.Timestamp
+	}
+	return 0
+}
+
+func (m *Post) GetTagNames() []string {
+	if m != nil {
+		return m.TagNames
+	}
+	return nil
+}
+
+type QueryRequest struct {
+	Slug                 string   `protobuf:"bytes,1,opt,name=slug,proto3" json:"slug,omitempty"`
+	Offset               int64    `protobuf:"varint,2,opt,name=offset,proto3" json:"offset,omitempty"`
+	Limit                int64    `protobuf:"varint,3,opt,name=limit,proto3" json:"limit,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *QueryRequest) Reset()         { *m = QueryRequest{} }
+func (m *QueryRequest) String() string { return proto.CompactTextString(m) }
+func (*QueryRequest) ProtoMessage()    {}
+func (*QueryRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{1}
+}
+
+func (m *QueryRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_QueryRequest.Unmarshal(m, b)
+}
+func (m *QueryRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_QueryRequest.Marshal(b, m, deterministic)
+}
+func (m *QueryRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_QueryRequest.Merge(m, src)
+}
+func (m *QueryRequest) XXX_Size() int {
+	return xxx_messageInfo_QueryRequest.Size(m)
+}
+func (m *QueryRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_QueryRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_QueryRequest proto.InternalMessageInfo
+
+func (m *QueryRequest) GetSlug() string {
+	if m != nil {
+		return m.Slug
+	}
+	return ""
+}
+
+func (m *QueryRequest) GetOffset() int64 {
+	if m != nil {
+		return m.Offset
+	}
+	return 0
+}
+
+func (m *QueryRequest) GetLimit() int64 {
+	if m != nil {
+		return m.Limit
+	}
+	return 0
+}
+
+type QueryResponse struct {
+	Posts                []*Post  `protobuf:"bytes,1,rep,name=posts,proto3" json:"posts,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *QueryResponse) Reset()         { *m = QueryResponse{} }
+func (m *QueryResponse) String() string { return proto.CompactTextString(m) }
+func (*QueryResponse) ProtoMessage()    {}
+func (*QueryResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{2}
+}
+
+func (m *QueryResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_QueryResponse.Unmarshal(m, b)
+}
+func (m *QueryResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_QueryResponse.Marshal(b, m, deterministic)
+}
+func (m *QueryResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_QueryResponse.Merge(m, src)
+}
+func (m *QueryResponse) XXX_Size() int {
+	return xxx_messageInfo_QueryResponse.Size(m)
+}
+func (m *QueryResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_QueryResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_QueryResponse proto.InternalMessageInfo
+
+func (m *QueryResponse) GetPosts() []*Post {
+	if m != nil {
+		return m.Posts
+	}
+	return nil
+}
+
+type SaveRequest struct {
+	Post                 *Post    `protobuf:"bytes,1,opt,name=post,proto3" json:"post,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SaveRequest) Reset()         { *m = SaveRequest{} }
+func (m *SaveRequest) String() string { return proto.CompactTextString(m) }
+func (*SaveRequest) ProtoMessage()    {}
+func (*SaveRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{3}
+}
+
+func (m *SaveRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SaveRequest.Unmarshal(m, b)
+}
+func (m *SaveRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SaveRequest.Marshal(b, m, deterministic)
+}
+func (m *SaveRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SaveRequest.Merge(m, src)
+}
+func (m *SaveRequest) XXX_Size() int {
+	return xxx_messageInfo_SaveRequest.Size(m)
+}
+func (m *SaveRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_SaveRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SaveRequest proto.InternalMessageInfo
+
+func (m *SaveRequest) GetPost() *Post {
+	if m != nil {
+		return m.Post
+	}
+	return nil
+}
+
+type SaveResponse struct {
+	Post                 *Post    `protobuf:"bytes,1,opt,name=post,proto3" json:"post,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *SaveResponse) Reset()         { *m = SaveResponse{} }
+func (m *SaveResponse) String() string { return proto.CompactTextString(m) }
+func (*SaveResponse) ProtoMessage()    {}
+func (*SaveResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{4}
+}
+
+func (m *SaveResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_SaveResponse.Unmarshal(m, b)
+}
+func (m *SaveResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_SaveResponse.Marshal(b, m, deterministic)
+}
+func (m *SaveResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_SaveResponse.Merge(m, src)
+}
+func (m *SaveResponse) XXX_Size() int {
+	return xxx_messageInfo_SaveResponse.Size(m)
+}
+func (m *SaveResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_SaveResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_SaveResponse proto.InternalMessageInfo
+
+func (m *SaveResponse) GetPost() *Post {
+	if m != nil {
+		return m.Post
+	}
+	return nil
+}
+
+type DeleteRequest struct {
+	Id                   string   `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *DeleteRequest) Reset()         { *m = DeleteRequest{} }
+func (m *DeleteRequest) String() string { return proto.CompactTextString(m) }
+func (*DeleteRequest) ProtoMessage()    {}
+func (*DeleteRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{5}
+}
+
+func (m *DeleteRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DeleteRequest.Unmarshal(m, b)
+}
+func (m *DeleteRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DeleteRequest.Marshal(b, m, deterministic)
+}
+func (m *DeleteRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DeleteRequest.Merge(m, src)
+}
+func (m *DeleteRequest) XXX_Size() int {
+	return xxx_messageInfo_DeleteRequest.Size(m)
+}
+func (m *DeleteRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_DeleteRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DeleteRequest proto.InternalMessageInfo
+
+func (m *DeleteRequest) GetId() string {
+	if m != nil {
+		return m.Id
+	}
+	return ""
+}
+
+type DeleteResponse struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *DeleteResponse) Reset()         { *m = DeleteResponse{} }
+func (m *DeleteResponse) String() string { return proto.CompactTextString(m) }
+func (*DeleteResponse) ProtoMessage()    {}
+func (*DeleteResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_2d32cca1c2f74735, []int{6}
+}
+
+func (m *DeleteResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DeleteResponse.Unmarshal(m, b)
+}
+func (m *DeleteResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DeleteResponse.Marshal(b, m, deterministic)
+}
+func (m *DeleteResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DeleteResponse.Merge(m, src)
+}
+func (m *DeleteResponse) XXX_Size() int {
+	return xxx_messageInfo_DeleteResponse.Size(m)
+}
+func (m *DeleteResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_DeleteResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DeleteResponse proto.InternalMessageInfo
+
+func init() {
+	proto.RegisterType((*Post)(nil), "posts.Post")
+	proto.RegisterType((*QueryRequest)(nil), "posts.QueryRequest")
+	proto.RegisterType((*QueryResponse)(nil), "posts.QueryResponse")
+	proto.RegisterType((*SaveRequest)(nil), "posts.SaveRequest")
+	proto.RegisterType((*SaveResponse)(nil), "posts.SaveResponse")
+	proto.RegisterType((*DeleteRequest)(nil), "posts.DeleteRequest")
+	proto.RegisterType((*DeleteResponse)(nil), "posts.DeleteResponse")
+}
+
+func init() { proto.RegisterFile("blog/posts/proto/posts/post.proto", fileDescriptor_2d32cca1c2f74735) }
+
+var fileDescriptor_2d32cca1c2f74735 = []byte{
+	// 343 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x84, 0x92, 0x4d, 0x4e, 0xc3, 0x30,
+	0x10, 0x85, 0x71, 0xf3, 0x03, 0x9d, 0xfe, 0x08, 0x4d, 0x0b, 0xb2, 0x22, 0xa4, 0xa6, 0x59, 0x65,
+	0x95, 0x8a, 0x82, 0xc4, 0x05, 0x58, 0xa3, 0x62, 0x4e, 0x90, 0x52, 0xb7, 0x8a, 0x94, 0xd4, 0xa1,
+	0x9e, 0x22, 0x71, 0x0f, 0x2e, 0xc1, 0x2d, 0x51, 0xec, 0x24, 0xb4, 0xd9, 0xb0, 0xf3, 0xfb, 0xec,
+	0x79, 0xf3, 0x66, 0x12, 0x98, 0xaf, 0x73, 0xb5, 0x5b, 0x94, 0x4a, 0x93, 0x5e, 0x94, 0x07, 0x45,
+	0xaa, 0x39, 0x2b, 0x4d, 0x89, 0x01, 0xe8, 0x19, 0x12, 0x7d, 0x33, 0x70, 0x57, 0x4a, 0x13, 0x8e,
+	0xa1, 0x97, 0x6d, 0x38, 0x0b, 0x59, 0xdc, 0x17, 0xbd, 0x6c, 0x83, 0x53, 0xf0, 0x28, 0xa3, 0x5c,
+	0xf2, 0x9e, 0x41, 0x56, 0x20, 0x82, 0xab, 0xf3, 0xe3, 0x8e, 0x3b, 0x06, 0x9a, 0x33, 0x72, 0xb8,
+	0x7c, 0x57, 0x7b, 0x92, 0x7b, 0xe2, 0xae, 0xc1, 0x8d, 0xc4, 0x3b, 0xe8, 0x53, 0x56, 0x48, 0x4d,
+	0x69, 0x51, 0x72, 0x2f, 0x64, 0xb1, 0x23, 0xfe, 0x00, 0x06, 0x70, 0x45, 0xe9, 0xee, 0x25, 0x2d,
+	0xa4, 0xe6, 0x7e, 0xe8, 0xc4, 0x7d, 0xd1, 0xea, 0x68, 0x05, 0xc3, 0xd7, 0xa3, 0x3c, 0x7c, 0x09,
+	0xf9, 0x71, 0x94, 0x9a, 0xda, 0xbe, 0xec, 0xa4, 0xef, 0x2d, 0xf8, 0x6a, 0xbb, 0xd5, 0x92, 0x4c,
+	0x44, 0x47, 0xd4, 0xaa, 0x4a, 0x9e, 0x67, 0x45, 0x46, 0x26, 0xa4, 0x23, 0xac, 0x88, 0x96, 0x30,
+	0xaa, 0x1d, 0x75, 0xa9, 0xf6, 0x5a, 0xe2, 0x1c, 0xec, 0x0a, 0x38, 0x0b, 0x9d, 0x78, 0xb0, 0x1c,
+	0x24, 0x46, 0x25, 0xd5, 0x32, 0x44, 0xbd, 0x9c, 0x04, 0x06, 0x6f, 0xe9, 0xa7, 0x6c, 0x42, 0xcc,
+	0xc0, 0xad, 0xb8, 0x09, 0xd1, 0x29, 0x30, 0x17, 0xd1, 0x02, 0x86, 0xf6, 0x7d, 0xdd, 0xe2, 0xdf,
+	0x82, 0x19, 0x8c, 0x9e, 0x65, 0x2e, 0xa9, 0x6d, 0xd1, 0xf9, 0x0a, 0xd1, 0x35, 0x8c, 0x9b, 0x07,
+	0xd6, 0x73, 0xf9, 0xc3, 0xc0, 0xab, 0x1c, 0x34, 0x3e, 0x82, 0x67, 0x26, 0xc2, 0x49, 0x6d, 0x7c,
+	0xba, 0xb1, 0x60, 0x7a, 0x0e, 0x6d, 0x75, 0x74, 0x81, 0xf7, 0xe0, 0x56, 0x19, 0x11, 0xeb, 0xfb,
+	0x93, 0x01, 0x83, 0xc9, 0x19, 0x6b, 0x4b, 0x9e, 0xc0, 0xb7, 0x21, 0xb0, 0x31, 0x3d, 0x0b, 0x1d,
+	0xdc, 0x74, 0x68, 0x53, 0xb8, 0xf6, 0xcd, 0xaf, 0xf6, 0xf0, 0x1b, 0x00, 0x00, 0xff, 0xff, 0xd5,
+	0xd2, 0x06, 0xac, 0x8f, 0x02, 0x00, 0x00,
+}

blog/posts/proto/posts/post.pb.micro.go

@@ -0,0 +1,129 @@
+// Code generated by protoc-gen-micro. DO NOT EDIT.
+// source: blog/posts/proto/posts/post.proto
+
+package posts
+
+import (
+	fmt "fmt"
+	proto "github.com/golang/protobuf/proto"
+	math "math"
+)
+
+import (
+	context "context"
+	api "github.com/micro/go-micro/v3/api"
+	client "github.com/micro/go-micro/v3/client"
+	server "github.com/micro/go-micro/v3/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 Posts service
+
+func NewPostsEndpoints() []*api.Endpoint {
+	return []*api.Endpoint{}
+}
+
+// Client API for Posts service
+
+type PostsService interface {
+	// Query currently only supports read by slug or timestamp, no listing.
+	Query(ctx context.Context, in *QueryRequest, opts ...client.CallOption) (*QueryResponse, error)
+	Save(ctx context.Context, in *SaveRequest, opts ...client.CallOption) (*SaveResponse, error)
+	Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error)
+}
+
+type postsService struct {
+	c    client.Client
+	name string
+}
+
+func NewPostsService(name string, c client.Client) PostsService {
+	return &postsService{
+		c:    c,
+		name: name,
+	}
+}
+
+func (c *postsService) Query(ctx context.Context, in *QueryRequest, opts ...client.CallOption) (*QueryResponse, error) {
+	req := c.c.NewRequest(c.name, "Posts.Query", in)
+	out := new(QueryResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *postsService) Save(ctx context.Context, in *SaveRequest, opts ...client.CallOption) (*SaveResponse, error) {
+	req := c.c.NewRequest(c.name, "Posts.Save", in)
+	out := new(SaveResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *postsService) Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error) {
+	req := c.c.NewRequest(c.name, "Posts.Delete", in)
+	out := new(DeleteResponse)
+	err := c.c.Call(ctx, req, out, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+// Server API for Posts service
+
+type PostsHandler interface {
+	// Query currently only supports read by slug or timestamp, no listing.
+	Query(context.Context, *QueryRequest, *QueryResponse) error
+	Save(context.Context, *SaveRequest, *SaveResponse) error
+	Delete(context.Context, *DeleteRequest, *DeleteResponse) error
+}
+
+func RegisterPostsHandler(s server.Server, hdlr PostsHandler, opts ...server.HandlerOption) error {
+	type posts interface {
+		Query(ctx context.Context, in *QueryRequest, out *QueryResponse) error
+		Save(ctx context.Context, in *SaveRequest, out *SaveResponse) error
+		Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error
+	}
+	type Posts struct {
+		posts
+	}
+	h := &postsHandler{hdlr}
+	return s.Handle(s.NewHandler(&Posts{h}, opts...))
+}
+
+type postsHandler struct {
+	PostsHandler
+}
+
+func (h *postsHandler) Query(ctx context.Context, in *QueryRequest, out *QueryResponse) error {
+	return h.PostsHandler.Query(ctx, in, out)
+}
+
+func (h *postsHandler) Save(ctx context.Context, in *SaveRequest, out *SaveResponse) error {
+	return h.PostsHandler.Save(ctx, in, out)
+}
+
+func (h *postsHandler) Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error {
+	return h.PostsHandler.Delete(ctx, in, out)
+}

blog/posts/proto/posts/post.proto

@@ -0,0 +1,45 @@
+syntax = "proto3";
+
+package posts;
+
+service Posts {
+	// Query currently only supports read by slug or timestamp, no listing.
+	rpc Query(QueryRequest) returns (QueryResponse) {}
+	rpc Save(SaveRequest) returns (SaveResponse) {}
+	rpc Delete(DeleteRequest) returns (DeleteResponse) {}
+}
+
+message Post {
+	string id = 1;
+	string title = 2;
+	string slug = 3;
+	string content = 4;
+	int64 timestamp = 5;
+	repeated string tagNames = 6;
+}
+
+message QueryRequest {
+	string slug = 1;
+	int64 offset = 2;
+	int64 limit = 3;
+}
+
+message QueryResponse {
+	repeated Post posts = 1;
+}
+
+message SaveRequest {
+	Post post = 1;
+}
+
+message SaveResponse {
+	Post post = 1;
+}
+
+message DeleteRequest {
+	string id = 1;
+}
+
+message DeleteResponse {
+}
+