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db service: Count endpoint (#236)

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This commit is contained in:
Janos Dobronszki
2021-10-21 09:35:51 +01:00
committed by GitHub
parent 36b705930f
commit 2b6a219b0e
13 changed files with 384 additions and 118 deletions
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14
clients/go/db/db.go
View File

@@ -16,6 +16,12 @@ type DbService struct {
client *client.Client
}
// Count records in a table
func (t *DbService) Count(request *CountRequest) (*CountResponse, error) {
rsp := &CountResponse{}
return rsp, t.client.Call("db", "Count", request, rsp)
}
// Create a record in the database. Optionally include an "id" field otherwise it's set automatically.
func (t *DbService) Create(request *CreateRequest) (*CreateResponse, error) {
rsp := &CreateResponse{}
@@ -46,6 +52,14 @@ func (t *DbService) Update(request *UpdateRequest) (*UpdateResponse, error) {
return rsp, t.client.Call("db", "Update", request, rsp)
}
type CountRequest struct {
Table string `json:"table"`
}
type CountResponse struct {
Count int32 `json:"count"`
}
type CreateRequest struct {
// JSON encoded record or records (can be array or object)
Record map[string]interface{} `json:"record"`

12
clients/ts/db/index.ts
View File

@@ -6,6 +6,10 @@ export class DbService {
constructor(token: string) {
this.client = new m3o.Client({ token: token });
}
// Count records in a table
count(request: CountRequest): Promise<CountResponse> {
return this.client.call("db", "Count", request) as Promise<CountResponse>;
}
// Create a record in the database. Optionally include an "id" field otherwise it's set automatically.
create(request: CreateRequest): Promise<CreateResponse> {
return this.client.call("db", "Create", request) as Promise<CreateResponse>;
@@ -32,6 +36,14 @@ export class DbService {
}
}
export interface CountRequest {
table?: string;
}
export interface CountResponse {
count?: number;
}
export interface CreateRequest {
// JSON encoded record or records (can be array or object)
record?: { [key: string]: any };

2
clients/ts/package.json
View File

@@ -66,5 +66,5 @@
},
"type": "module",
"types": "dist/index.d.ts",
"version": "1.0.554"
"version": "1.0.555"
}

49
db/examples.json
View File

@@ -1,5 +1,6 @@
{
"create": [{
"create": [
{
"title": "Create a record",
"run_check": true,
"request": {
@@ -14,8 +15,10 @@
"response": {
"id": "1"
}
}],
"update": [{
}
],
"update": [
{
"title": "Update a record",
"run_check": true,
"request": {
@@ -25,10 +28,11 @@
"age": 43
}
},
"response": {
"response": {}
}
}],
"read": [{
],
"read": [
{
"title": "Read records",
"run_check": true,
"request": {
@@ -36,15 +40,19 @@
"query": "age == 43"
},
"response": {
"records": [{
"records": [
{
"id": "1",
"name": "Jane",
"age": 43,
"isActive": true
}]
}
}],
"delete": [{
]
}
}
],
"delete": [
{
"title": "Delete a record",
"run_check": true,
"request": {
@@ -52,15 +60,28 @@
"id": "1"
},
"response": {}
}],
"truncate": [{
}
],
"truncate": [
{
"title": "Truncate table",
"run_check": false,
"request": {
"table": "users"
},
"response": {}
}
],
"count": [
{
"title": "Count entries in a table",
"run_check": false,
"request": {
"table": "users"
},
"response": {
"count": 31
}
}]
}
]
}

34
db/handler/db.go
View File

@@ -121,7 +121,7 @@ func (e *Db) Update(ctx context.Context, req *db.UpdateRequest, rsp *db.UpdateRe
tenantId = strings.Replace(strings.Replace(tenantId, "/", "_", -1), "-", "_", -1)
tableName := tenantId + "_" + req.Table
if !re.Match([]byte(tableName)) {
return errors.BadRequest("db.create", fmt.Sprintf("table name %v is invalid", req.Table))
return errors.BadRequest("db.update", fmt.Sprintf("table name %v is invalid", req.Table))
}
logger.Infof("Updating table '%v'", tableName)
@@ -306,7 +306,7 @@ func (e *Db) Delete(ctx context.Context, req *db.DeleteRequest, rsp *db.DeleteRe
tenantId = strings.Replace(strings.Replace(tenantId, "/", "_", -1), "-", "_", -1)
tableName := tenantId + "_" + req.Table
if !re.Match([]byte(tableName)) {
return errors.BadRequest("db.create", fmt.Sprintf("table name %v is invalid", req.Table))
return errors.BadRequest("db.delete", fmt.Sprintf("table name %v is invalid", req.Table))
}
logger.Infof("Deleting from table '%v'", tableName)
@@ -331,7 +331,7 @@ func (e *Db) Truncate(ctx context.Context, req *db.TruncateRequest, rsp *db.Trun
tenantId = strings.Replace(strings.Replace(tenantId, "/", "_", -1), "-", "_", -1)
tableName := tenantId + "_" + req.Table
if !re.Match([]byte(tableName)) {
return errors.BadRequest("db.create", fmt.Sprintf("table name %v is invalid", req.Table))
return errors.BadRequest("db.truncate", fmt.Sprintf("table name %v is invalid", req.Table))
}
logger.Infof("Truncating table '%v'", tableName)
@@ -341,3 +341,31 @@ func (e *Db) Truncate(ctx context.Context, req *db.TruncateRequest, rsp *db.Trun
}
return db.Exec(fmt.Sprintf(truncateStmt, tableName)).Error
}
func (e *Db) Count(ctx context.Context, req *db.CountRequest, rsp *db.CountResponse) error {
tenantId, ok := tenant.FromContext(ctx)
if !ok {
tenantId = "micro"
}
if req.Table == "" {
req.Table = "default"
}
tenantId = strings.Replace(strings.Replace(tenantId, "/", "_", -1), "-", "_", -1)
tableName := tenantId + "_" + req.Table
if !re.Match([]byte(tableName)) {
return errors.BadRequest("db.count", fmt.Sprintf("table name %v is invalid", req.Table))
}
db, err := e.GetDBConn(ctx)
if err != nil {
return err
}
var a int64
err = db.Table(tableName).Model(Record{}).Count(&a).Error
if err != nil {
return err
}
rsp.Count = int32(a)
return nil
}

228
db/proto/db.pb.go
View File

@@ -1,15 +1,15 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.26.0
// protoc v3.15.6
// protoc v3.6.1
// source: proto/db.proto
package db
import (
_struct "github.com/golang/protobuf/ptypes/struct"
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
structpb "google.golang.org/protobuf/types/known/structpb"
reflect "reflect"
sync "sync"
)
@@ -27,7 +27,7 @@ type ReadRequest struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Table name is optional
// Optional table name. Defaults to 'default'
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
// Read by id. Equivalent to 'id == "your-id"'
Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
@@ -38,7 +38,7 @@ type ReadRequest struct {
// Accessing list elements is not supported yet.
Query string `protobuf:"bytes,3,opt,name=query,proto3" json:"query,omitempty"`
Offset int32 `protobuf:"varint,4,opt,name=offset,proto3" json:"offset,omitempty"`
// Default limit is 25.
// Maximum number of records to return. Default limit is 25.
// Maximum limit is 1000. Anything higher will return an error.
Limit int32 `protobuf:"varint,5,opt,name=limit,proto3" json:"limit,omitempty"`
// field name to order by
@@ -134,7 +134,7 @@ type ReadResponse struct {
unknownFields protoimpl.UnknownFields
// JSON encoded records
Records []*structpb.Struct `protobuf:"bytes,1,rep,name=records,proto3" json:"records,omitempty"`
Records []*_struct.Struct `protobuf:"bytes,1,rep,name=records,proto3" json:"records,omitempty"`
}
func (x *ReadResponse) Reset() {
@@ -169,23 +169,23 @@ func (*ReadResponse) Descriptor() ([]byte, []int) {
return file_proto_db_proto_rawDescGZIP(), []int{1}
}
func (x *ReadResponse) GetRecords() []*structpb.Struct {
func (x *ReadResponse) GetRecords() []*_struct.Struct {
if x != nil {
return x.Records
}
return nil
}
// Create a record in the database. Optionally include an "id" field otherwise its set automatically.
// Create a record in the database. Optionally include an "id" field otherwise it's set automatically.
type CreateRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Table name is optional
// Optional table name. Defaults to 'default'
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
// JSON encoded record or records (can be array or object)
Record *structpb.Struct `protobuf:"bytes,2,opt,name=record,proto3" json:"record,omitempty"`
Record *_struct.Struct `protobuf:"bytes,2,opt,name=record,proto3" json:"record,omitempty"`
}
func (x *CreateRequest) Reset() {
@@ -227,7 +227,7 @@ func (x *CreateRequest) GetTable() string {
return ""
}
func (x *CreateRequest) GetRecord() *structpb.Struct {
func (x *CreateRequest) GetRecord() *_struct.Struct {
if x != nil {
return x.Record
}
@@ -288,12 +288,12 @@ type UpdateRequest struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Table name is optional
// Optional table name. Defaults to 'default'
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
// The id of the record
// The id of the record. If not specified it is inferred from the 'id' field of the record
Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
// record, JSON object
Record *structpb.Struct `protobuf:"bytes,3,opt,name=record,proto3" json:"record,omitempty"`
Record *_struct.Struct `protobuf:"bytes,3,opt,name=record,proto3" json:"record,omitempty"`
}
func (x *UpdateRequest) Reset() {
@@ -342,7 +342,7 @@ func (x *UpdateRequest) GetId() string {
return ""
}
func (x *UpdateRequest) GetRecord() *structpb.Struct {
func (x *UpdateRequest) GetRecord() *_struct.Struct {
if x != nil {
return x.Record
}
@@ -393,9 +393,9 @@ type DeleteRequest struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Table name is optional
// Optional table name. Defaults to 'default'
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
// id or ids, eg. 'user-1', or comma separated ids 'user-1,user-2'
// id of the record
Id string `protobuf:"bytes,2,opt,name=id,proto3" json:"id,omitempty"`
}
@@ -489,7 +489,7 @@ type TruncateRequest struct {
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
// Table name is optional
// Optional table name. Defaults to 'default'
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
}
@@ -580,6 +580,100 @@ func (x *TruncateResponse) GetTable() string {
return ""
}
type CountRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Table string `protobuf:"bytes,1,opt,name=table,proto3" json:"table,omitempty"`
}
func (x *CountRequest) Reset() {
*x = CountRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_db_proto_msgTypes[10]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *CountRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*CountRequest) ProtoMessage() {}
func (x *CountRequest) ProtoReflect() protoreflect.Message {
mi := &file_proto_db_proto_msgTypes[10]
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 CountRequest.ProtoReflect.Descriptor instead.
func (*CountRequest) Descriptor() ([]byte, []int) {
return file_proto_db_proto_rawDescGZIP(), []int{10}
}
func (x *CountRequest) GetTable() string {
if x != nil {
return x.Table
}
return ""
}
type CountResponse struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Count int32 `protobuf:"varint,1,opt,name=count,proto3" json:"count,omitempty"`
}
func (x *CountResponse) Reset() {
*x = CountResponse{}
if protoimpl.UnsafeEnabled {
mi := &file_proto_db_proto_msgTypes[11]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *CountResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*CountResponse) ProtoMessage() {}
func (x *CountResponse) ProtoReflect() protoreflect.Message {
mi := &file_proto_db_proto_msgTypes[11]
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 CountResponse.ProtoReflect.Descriptor instead.
func (*CountResponse) Descriptor() ([]byte, []int) {
return file_proto_db_proto_rawDescGZIP(), []int{11}
}
func (x *CountResponse) GetCount() int32 {
if x != nil {
return x.Count
}
return 0
}
var File_proto_db_proto protoreflect.FileDescriptor
var file_proto_db_proto_rawDesc = []byte{
@@ -625,25 +719,33 @@ var file_proto_db_proto_rawDesc = []byte{
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}
var (
@@ -658,7 +760,7 @@ func file_proto_db_proto_rawDescGZIP() []byte {
return file_proto_db_proto_rawDescData
}
var file_proto_db_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
var file_proto_db_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
var file_proto_db_proto_goTypes = []interface{}{
(*ReadRequest)(nil), // 0: db.ReadRequest
(*ReadResponse)(nil), // 1: db.ReadResponse
@@ -670,24 +772,28 @@ var file_proto_db_proto_goTypes = []interface{}{
(*DeleteResponse)(nil), // 7: db.DeleteResponse
(*TruncateRequest)(nil), // 8: db.TruncateRequest
(*TruncateResponse)(nil), // 9: db.TruncateResponse
(*structpb.Struct)(nil), // 10: google.protobuf.Struct
(*CountRequest)(nil), // 10: db.CountRequest
(*CountResponse)(nil), // 11: db.CountResponse
(*_struct.Struct)(nil), // 12: google.protobuf.Struct
}
var file_proto_db_proto_depIdxs = []int32{
10, // 0: db.ReadResponse.records:type_name -> google.protobuf.Struct
10, // 1: db.CreateRequest.record:type_name -> google.protobuf.Struct
10, // 2: db.UpdateRequest.record:type_name -> google.protobuf.Struct
12, // 0: db.ReadResponse.records:type_name -> google.protobuf.Struct
12, // 1: db.CreateRequest.record:type_name -> google.protobuf.Struct
12, // 2: db.UpdateRequest.record:type_name -> google.protobuf.Struct
2, // 3: db.Db.Create:input_type -> db.CreateRequest
0, // 4: db.Db.Read:input_type -> db.ReadRequest
4, // 5: db.Db.Update:input_type -> db.UpdateRequest
6, // 6: db.Db.Delete:input_type -> db.DeleteRequest
8, // 7: db.Db.Truncate:input_type -> db.TruncateRequest
3, // 8: db.Db.Create:output_type -> db.CreateResponse
1, // 9: db.Db.Read:output_type -> db.ReadResponse
5, // 10: db.Db.Update:output_type -> db.UpdateResponse
7, // 11: db.Db.Delete:output_type -> db.DeleteResponse
9, // 12: db.Db.Truncate:output_type -> db.TruncateResponse
8, // [8:13] is the sub-list for method output_type
3, // [3:8] is the sub-list for method input_type
10, // 8: db.Db.Count:input_type -> db.CountRequest
3, // 9: db.Db.Create:output_type -> db.CreateResponse
1, // 10: db.Db.Read:output_type -> db.ReadResponse
5, // 11: db.Db.Update:output_type -> db.UpdateResponse
7, // 12: db.Db.Delete:output_type -> db.DeleteResponse
9, // 13: db.Db.Truncate:output_type -> db.TruncateResponse
11, // 14: db.Db.Count:output_type -> db.CountResponse
9, // [9:15] is the sub-list for method output_type
3, // [3:9] is the sub-list for method input_type
3, // [3:3] is the sub-list for extension type_name
3, // [3:3] is the sub-list for extension extendee
0, // [0:3] is the sub-list for field type_name
@@ -819,6 +925,30 @@ func file_proto_db_proto_init() {
return nil
}
}
file_proto_db_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*CountRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_proto_db_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*CountResponse); 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{
@@ -826,7 +956,7 @@ func file_proto_db_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_proto_db_proto_rawDesc,
NumEnums: 0,
NumMessages: 10,
NumMessages: 12,
NumExtensions: 0,
NumServices: 1,
},

19
db/proto/db.pb.micro.go
View File

@@ -6,7 +6,7 @@ package db
import (
fmt "fmt"
proto "github.com/golang/protobuf/proto"
_ "google.golang.org/protobuf/types/known/structpb"
_ "github.com/golang/protobuf/ptypes/struct"
math "math"
)
@@ -48,6 +48,7 @@ type DbService interface {
Update(ctx context.Context, in *UpdateRequest, opts ...client.CallOption) (*UpdateResponse, error)
Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error)
Truncate(ctx context.Context, in *TruncateRequest, opts ...client.CallOption) (*TruncateResponse, error)
Count(ctx context.Context, in *CountRequest, opts ...client.CallOption) (*CountResponse, error)
}
type dbService struct {
@@ -112,6 +113,16 @@ func (c *dbService) Truncate(ctx context.Context, in *TruncateRequest, opts ...c
return out, nil
}
func (c *dbService) Count(ctx context.Context, in *CountRequest, opts ...client.CallOption) (*CountResponse, error) {
req := c.c.NewRequest(c.name, "Db.Count", in)
out := new(CountResponse)
err := c.c.Call(ctx, req, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for Db service
type DbHandler interface {
@@ -120,6 +131,7 @@ type DbHandler interface {
Update(context.Context, *UpdateRequest, *UpdateResponse) error
Delete(context.Context, *DeleteRequest, *DeleteResponse) error
Truncate(context.Context, *TruncateRequest, *TruncateResponse) error
Count(context.Context, *CountRequest, *CountResponse) error
}
func RegisterDbHandler(s server.Server, hdlr DbHandler, opts ...server.HandlerOption) error {
@@ -129,6 +141,7 @@ func RegisterDbHandler(s server.Server, hdlr DbHandler, opts ...server.HandlerOp
Update(ctx context.Context, in *UpdateRequest, out *UpdateResponse) error
Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error
Truncate(ctx context.Context, in *TruncateRequest, out *TruncateResponse) error
Count(ctx context.Context, in *CountRequest, out *CountResponse) error
}
type Db struct {
db
@@ -160,3 +173,7 @@ func (h *dbHandler) Delete(ctx context.Context, in *DeleteRequest, out *DeleteRe
func (h *dbHandler) Truncate(ctx context.Context, in *TruncateRequest, out *TruncateResponse) error {
return h.DbHandler.Truncate(ctx, in, out)
}
func (h *dbHandler) Count(ctx context.Context, in *CountRequest, out *CountResponse) error {
return h.DbHandler.Count(ctx, in, out)
}

10
db/proto/db.proto
View File

@@ -11,6 +11,7 @@ service Db {
rpc Update(UpdateRequest) returns (UpdateResponse) {}
rpc Delete(DeleteRequest) returns (DeleteResponse) {}
rpc Truncate(TruncateRequest) returns (TruncateResponse) {}
rpc Count(CountRequest) returns (CountResponse) {}
}
@@ -88,3 +89,12 @@ message TruncateResponse {
// The table truncated
string table = 1;
}
// Count records in a table
message CountRequest {
string table = 1;
}
message CountResponse {
int32 count = 1;
}

6
examples/db/count/curl/countEntriesInATable.sh Executable file
View File

@@ -0,0 +1,6 @@
curl "https://api.m3o.com/v1/db/Count" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $MICRO_API_TOKEN" \
-d '{
"table": "users"
}'

16
examples/db/count/go/countEntriesInATable.go Executable file
View File

@@ -0,0 +1,16 @@
package example
import (
"fmt"
"github.com/micro/services/clients/go/db"
"os"
)
// Count records in a table
func CountEntriesInAtable() {
dbService := db.NewDbService(os.Getenv("MICRO_API_TOKEN"))
rsp, err := dbService.Count(&db.CountRequest{
Table: "users",
})
fmt.Println(rsp, err)
}

12
examples/db/count/node/countEntriesInATable.js Executable file
View File

@@ -0,0 +1,12 @@
import * as db from "m3o/db";
// Count records in a table
async function CountEntriesInAtable() {
let dbService = new db.DbService(process.env.MICRO_API_TOKEN);
let rsp = await dbService.count({
table: "users",
});
console.log(rsp);
}
await CountEntriesInAtable();

2
examples/db/create/go/createARecord.go
View File

@@ -11,10 +11,10 @@ func CreateArecord() {
dbService := db.NewDbService(os.Getenv("MICRO_API_TOKEN"))
rsp, err := dbService.Create(&db.CreateRequest{
Record: map[string]interface{}{
"id": "1",
"name": "Jane",
"age": 42,
"isActive": true,
"id": "1",
},
Table: "users",
})

2
examples/stream/publish/go/publishAMessage.go
View File

@@ -11,9 +11,9 @@ func PublishAmessage() {
streamService := stream.NewStreamService(os.Getenv("MICRO_API_TOKEN"))
rsp, err := streamService.Publish(&stream.PublishRequest{
Message: map[string]interface{}{
"user": "john",
"id": "1",
"type": "signup",
"user": "john",
},
Topic: "events",
})