https://github.com/killlowkey/go-micro-example
go-micro grpc example
https://github.com/killlowkey/go-micro-example
Last synced: 17 days ago
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go-micro grpc example
- Host: GitHub
- URL: https://github.com/killlowkey/go-micro-example
- Owner: killlowkey
- Created: 2024-06-01T03:21:20.000Z (over 1 year ago)
- Default Branch: master
- Last Pushed: 2024-06-01T03:59:21.000Z (over 1 year ago)
- Last Synced: 2024-07-13T09:14:32.529Z (over 1 year ago)
- Language: Go
- Size: 34.2 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
## 参考文档
1. https://github.com/go-micro/generator
2. https://github.com/go-micro/examples/tree/main/greeter
## 安装工具库
```shell
go install google.golang.org/protobuf/cmd/protoc-gen-go@latest
go install github.com/go-micro/generator/cmd/protoc-gen-micro@latest
```
## 创建项目并安装依赖
```shell
mkdir -p example
cd example
go mod init github.com/killlowkey/go-micro-example
go get google.golang.org/protobuf
go get go-micro.dev/v4
```
## 编写 proto 文件
在 proto 目录下创建 greeter.proto 文件，并填充如下内容
```proto
syntax = "proto3";
package pb;
option go_package = "pkg/proto;pb";
service Greeter {
rpc Hello(Request) returns (Response) {}
}
message Request {
string name = 1;
}
message Response {
string msg = 1;
}
```
## 生成代码
```shell
protoc --proto_path=. --micro_out=. --go_out=. proto/greeter.proto
```
## 服务端代码
cmd/server/main.go
```go
package main
import (
"context"
"github.com/killlowkey/go-micro-example/pkg/proto"
"go-micro.dev/v4"
"google.golang.org/grpc"
"log"
"time"
)
type Greeter struct{}
func (g *Greeter) Hello(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
rsp.Msg = "Hello " + req.Name
return nil
}
func main() {
go func() {
for {
grpc.DialContext(context.TODO(), "127.0.0.1:9091")
time.Sleep(time.Second)
}
}()
service := micro.NewService(
micro.Name("go.micro.srv.greeter"),
)
// optionally setup command line usage
service.Init()
// Register Handlers
if err := pb.RegisterGreeterHandler(service.Server(), &Greeter{}); err != nil {
log.Fatal(err)
}
// Run server
if err := service.Run(); err != nil {
log.Fatal(err)
}
}
```
## 客户端代码
```go
package main
import (
"context"
"fmt"
"github.com/killlowkey/go-micro-example/pkg/proto"
"go-micro.dev/v4"
)
func main() {
// create a new service
service := micro.NewService()
// parse command line flags
service.Init()
// Use the generated client stub
cl := pb.NewGreeterService("go.micro.srv.greeter", service.Client())
// Make request
rsp, err := cl.Hello(context.Background(), &pb.Request{
Name: "John",
})
if err != nil {
fmt.Println(err)
return
}
fmt.Println(rsp.Msg)
}
```
## 运行服务端
> 运行之前执行 go mod tidy
```shell
go run cmd/server/main.go
```
## 运行客户端
> 运行之前执行 go mod tidy
```shell
go run cmd/client/main.go
```