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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,52 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| "github.com/gogf/gf/v2/frame/g" | ||
| "github.com/gogf/gf/v2/net/ghttp" | ||
| "golang.org/x/time/rate" | ||
| ) | ||
|
|
||
| type HelloReq struct { | ||
| g.Meta `path:"/hello" method:"get" sort:"1"` | ||
| Name string `v:"required" dc:"Your name"` | ||
| } | ||
|
|
||
| type HelloRes struct { | ||
| Reply string `dc:"Reply content"` | ||
| } | ||
|
|
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| type Hello struct{} | ||
|
|
||
| func (Hello) Say(ctx context.Context, req *HelloReq) (res *HelloRes, err error) { | ||
| g.Log().Debugf(ctx, `receive say: %+v`, req) | ||
| res = &HelloRes{ | ||
| Reply: fmt.Sprintf(`Hi %s`, req.Name), | ||
| } | ||
| return | ||
| } | ||
|
|
||
| var limiter = rate.NewLimiter(rate.Limit(10), 1) // 10 request per second | ||
|
|
||
| func Limiter(r *ghttp.Request) { | ||
| if !limiter.Allow() { | ||
| r.Response.WriteStatusExit(503) | ||
| r.ExitAll() | ||
| } | ||
| r.Middleware.Next() | ||
| } | ||
|
|
||
| // curl "http://127.0.0.1:8080/hello?name=world" | ||
| func main() { | ||
| s := g.Server() | ||
| s.Use(Limiter, ghttp.MiddlewareHandlerResponse) | ||
| s.Group("/", func(group *ghttp.RouterGroup) { | ||
| group.Bind( | ||
| new(Hello), | ||
| ) | ||
| }) | ||
| s.SetPort(8080) | ||
| s.Run() | ||
| } |