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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| /* | ||
| * Copyright 2022 CloudWeGo Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "net/http" | ||
| "time" | ||
|
|
||
| "github.com/cloudwego/hertz/pkg/app" | ||
| "github.com/cloudwego/hertz/pkg/app/client" | ||
| "github.com/cloudwego/hertz/pkg/app/server" | ||
| "github.com/cloudwego/hertz/pkg/common/hlog" | ||
| "github.com/hertz-contrib/reverseproxy" | ||
| "github.com/hertz-contrib/sse" | ||
| ) | ||
|
|
||
| var proxy *reverseproxy.ReverseProxy | ||
|
|
||
| func main() { | ||
| h := server.Default(server.WithHostPorts("127.0.0.1:8000")) | ||
| h2 := server.Default(server.WithHostPorts("127.0.0.1:8001")) | ||
|
|
||
| proxy, _ = reverseproxy.NewSingleHostReverseProxy("http://127.0.0.1:8001", | ||
| client.WithResponseBodyStream(true), | ||
| ) | ||
|
|
||
| // Use http://127.0.0.1:8080 access this handler | ||
| h.GET("/", func(ctx context.Context, c *app.RequestContext) { | ||
| hlog.Info(c.Request.Header.Get("Last-Event-ID")) | ||
| c.JSON(200, map[string]string{ | ||
| "message": "pong", | ||
| }) | ||
| }) | ||
|
|
||
| h.GET("/proxy", proxyToServer2) | ||
| h.GET("/proxy/:path", proxyToServer2) | ||
|
|
||
| // Use http://127.0.0.1:8080/proxy/sse access this handler | ||
| h2.GET("/sse", func(ctx context.Context, c *app.RequestContext) { | ||
| // you must set status code and response headers before first render call | ||
| c.Response.Header.Set("X-Accel-Buffering", "no") | ||
| c.SetStatusCode(http.StatusOK) | ||
| s := sse.NewStream(c) | ||
| for t := range time.NewTicker(1 * time.Second).C { | ||
| event := &sse.Event{ | ||
| Event: "timestamp", | ||
| Data: []byte(t.Format(time.RFC3339)), | ||
| } | ||
| err := s.Publish(event) | ||
| if err != nil { | ||
| return | ||
| } | ||
| } | ||
| }) | ||
|
|
||
| // Use http://127.0.0.1:8080/proxy access this handler | ||
| h2.GET("/", func(ctx context.Context, c *app.RequestContext) { | ||
| if c.Request.Header.Get("Secret") != "123456" { | ||
| c.Abort() | ||
| return | ||
| } | ||
|
|
||
| c.JSON(200, map[string]string{ | ||
| "message": "proxy success", | ||
| }) | ||
| }) | ||
|
|
||
| go h.Spin() | ||
| h2.Spin() | ||
| } | ||
|
|
||
| func proxyToServer2(ctx context.Context, c *app.RequestContext) { | ||
| path := c.Param("path") | ||
| hlog.Info("path: ", path) | ||
| c.Request.Header.Set("Secret", "123456") | ||
| c.Request.URI().SetPath(path) | ||
| proxy.ServeHTTP(ctx, c) | ||
| c.Abort() | ||
| } |