76 lines
1.5 KiB
Markdown
76 lines
1.5 KiB
Markdown
# Greeter 问候示例服务
|
||
|
||
本示例展示基于gRPC的Go-Micro服务
|
||
|
||
## 本目录有
|
||
|
||
- **server** - Greeter的gRPC服务端
|
||
- **client** - gRPC客户端，会调用一次server
|
||
- **function** - 演示gRPC Greeter function接口，更多关于Function，请查阅[Function](https://micro.mu/docs/writing-a-go-function_cn.html)
|
||
- **gateway** - gRPC网关
|
||
|
||
## 测试服务
|
||
|
||
运行服务
|
||
|
||
```
|
||
$ go run server/main.go --registry=mdns
|
||
2016/11/03 18:41:22 Listening on [::]:55194
|
||
2016/11/03 18:41:22 Broker Listening on [::]:55195
|
||
2016/11/03 18:41:22 Registering node: go.micro.srv.greeter-1e200612-a1f5-11e6-8e84-68a86d0d36b6
|
||
```
|
||
|
||
测试
|
||
|
||
```
|
||
$ go run client/main.go --registry=mdns
|
||
Hello John
|
||
```
|
||
|
||
## 测试 Function
|
||
|
||
运行测试
|
||
|
||
```
|
||
go run function/main.go --registry=mdns
|
||
```
|
||
|
||
调用服务
|
||
|
||
服务端的Function服务只会执行一次，所以在下面的命令执行且服务端返回请求后，服务端便后退出
|
||
|
||
```bash
|
||
$ go run client/main.go --registry=mdns --service_name="go.micro.fnc.greeter"
|
||
|
||
# 返回
|
||
Hello John
|
||
|
||
# 再次执行
|
||
$ go run client/main.go --registry=mdns --service_name="go.micro.fnc.greeter"
|
||
|
||
# 就会报异常，找不到服务
|
||
{"id":"go.micro.client","code":500,"detail":"none available","status":"Internal Server Error"}
|
||
|
||
```
|
||
|
||
## 测试网关
|
||
|
||
指定地址再运行服务端：
|
||
|
||
```
|
||
go run server/main.go --registry=mdns --server_address=localhost:9090
|
||
```
|
||
|
||
运行网关
|
||
|
||
```
|
||
go run gateway/main.go
|
||
```
|
||
|
||
使用curl调用网关
|
||
|
||
```
|
||
curl -d '{"name": "john"}' http://localhost:8080/greeter/hello
|
||
# 返回
|
||
{"msg":"Hello john"}
|
||
``` |