YarBor commented on code in PR #711:
URL: https://github.com/apache/dubbo-go-samples/pull/711#discussion_r1520896715
##########
config_yaml/README.md:
##########
@@ -0,0 +1,232 @@
+# Dubbo-go Config_Yaml
+
+## 1.Introduction
+
+This example demonstrates how to configure using yaml configuration files in
Dubbo-go framework
+
+## 2.Run
+```txt
+.
+├── go-client
+│ ├── cmd
+│ │ └── main.go
+│ └── conf
+│ └── dubbogo.yml
+├── go-server
+│ ├── cmd
+│ │ └── main.go
+│ └── conf
+│ └── dubbogo.yml
+└─── proto
+ ├── greet.pb.go
+ ├── greet.proto
+ └── greet.triple.go
+
+```
+通过 IDL`./proto/greet.proto` 定义服务 使用triple协议
+
+### build Proto
+```bash
+cd path_to_dubbogo-sample/config_yaml/proto
+protoc --go_out=. --go-triple_out=. ./greet.proto
+```
+### Server
+```bash
+export DUBBO_GO_CONFIG_PATH="../conf/dubbogo.yml"
+cd path_to_dubbogo-sample/config_yaml/go-server/cmd
+go run .
+```
+### Client
+```bash
+export DUBBO_GO_CONFIG_PATH="../conf/dubbogo.yml"
+cd path_to_dubbogo-sample/config_yaml/go-client/cmd
+go run .
+```
+
+### 2.1 Client usage instructions
+
+Client-defined yaml file
+```yaml
+# dubbo client yaml configure file
+dubbo:
+ registries:
+ demoZK:
+ protocol: zookeeper
+ timeout: 3s
+ address: 127.0.0.1:2181
+ consumer:
+ references:
+ GreetServiceImpl:
+ protocol: tri
+ interface: com.apache.dubbo.sample.Greeter
+ registry: demoZK
+ retries: 3
+ timeout: 3000
+```
+Read and load files through dubbo.Load() calls
+
+```go
+//...
+func main() {
+ //...
+ if err := dubbo.Load(); err != nil {
+ //...
+ }
+ //...
+}
+```
+
+### 2.2 Server usage instructions
+
+Yaml file defined on the server side
+
+```yaml
+# dubbo server yaml configure file
+dubbo:
+ registries:
+ demoZK:
+ protocol: zookeeper
+ timeout: 10s
+ address: 127.0.0.1:2181
+ protocols:
+ tripleProtocol:
+ name: tri
+ port: 20000
+ provider:
+ services:
+ GreetTripleServer:
+ interface: com.apache.dubbo.sample.Greeter
+```
+
+Read and load files through dubbo.Load() calls
+```go
+//...
+func main() {
+ //...
+ if err := dubbo.Load(); err != nil {
+ //...
+ }
+ //...
+}
+```
+## 3.Example
+
+### 3.1 Server
+
+#### IDL
+
+Source file path ：dubbo-go-sample/context/proto/greet.proto
+
+```protobuf
+syntax = "proto3";
+
+package greet;
+
+option go_package =
"github.com/apache/dubbo-go-samples/config_yaml/proto;greet";
+
+message GreetRequest {
+ string name = 1;
+}
+
+message GreetResponse {
+ string greeting = 1;
+}
+
+service GreetService {
+ rpc Greet(GreetRequest) returns (GreetResponse) {}
+}
+```
+
+#### Server Handler
+
+On the server side, define GreetTripleServer interface:
+```go
+type GreetServiceHandler interface {
+ Greet(context.Context, *GreetRequest) (*GreetResponse, error)
+}
+```
+Implement the GreetServiceHandler interface and register through
`greet.SetProviderService(&GreetTripleServer{})`
+Also use `dubbo.Load()` to load the configuration file
+
+Source file path ：dubbo-go-sample/config_yaml/go-server/cmd/main.go
+
+```go
+
+package main
+
+import (
+ "context"
+ "errors"
+ "fmt"
+
+ "dubbo.apache.org/dubbo-go/v3"
+ _ "dubbo.apache.org/dubbo-go/v3/imports"
+ greet "github.com/apache/dubbo-go-samples/config_yaml/proto"
+)
+
+type GreetTripleServer struct {
+}
+
+func (srv *GreetTripleServer) Greet(ctx context.Context, req
*greet.GreetRequest) (*greet.GreetResponse, error) {
+ name := req.Name
+ if name != "ConfigTest" {
+ errInfo := fmt.Sprintf("name is not right: %s", name)
+ return nil, errors.New(errInfo)
+ }
+
+ resp := &greet.GreetResponse{Greeting: req.Name + "-Success"}
+ return resp, nil
+}
+
+func main() {
+ greet.SetProviderService(&GreetTripleServer{})
+ if err := dubbo.Load(); err != nil {
+ panic(err)
+ }
+ select {}
+}
+```
+
+### 3.2 Client
+
+In the client, define greet.GreetServiceImpl instance and register with
greet.SetConsumerService(svc):
+Load the configuration file through `dubbo.Load()`
+
+Source file path ：dubbo-go-sample/config_yaml/go-client/cmd/main.go
+
+```go
+package main
+
+import (
+ "context"
+ "dubbo.apache.org/dubbo-go/v3"
+ _ "dubbo.apache.org/dubbo-go/v3/imports"
+ greet "github.com/apache/dubbo-go-samples/config_yaml/proto"
+ "github.com/dubbogo/gost/log/logger"
+)
+
+var svc = new(greet.GreetServiceImpl)
+
+func main() {
+ greet.SetConsumerService(svc)
+ if err := dubbo.Load(); err != nil {
+ panic(err)
+ }
+ req, err := svc.Greet(context.Background(), &greet.GreetRequest{Name:
"ConfigTest"})
+ if err != nil || req.Greeting != "ConfigTest-Success" {
+ panic(err)
+ }
+ logger.Info("ConfigTest successfully")
+}
+
+```
+
+### 3.3 Show
+
+Start the server first and then the client. You can observe that the client
prints `ConfigTest successfully` and the configuration is loaded and the call
is successful.
Review Comment:
Thanks for reminding
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