fasthttp-reverse-proxy

reverse http proxy hander based on fasthttp.

features:

• proxy client has pool supported

• faster than golang standard httputil.ReverseProxy

• simple warpper of fasthttp.HostClient

• websocket proxy

• support balance distibute based rounddobin

quick start

HTTP (with balancer option)

import (
	"log"

	"github.com/valyala/fasthttp"
	proxy "github.com/gophemt/fasthttp-reverse-proxy"
)

var (
	proxyServer = proxy.NewReverseProxy("localhost:8080")

	// use with balancer
	// weights = map[string]proxy.Weight{
	// 	"localhost:8080": 20,
	// 	"localhost:8081": 30,
	// 	"localhost:8082": 50,
	// }
	// proxyServer = proxy.NewReverseProxy("", proxy.WithBalancer(weights))

)

// ProxyHandler ... fasthttp.RequestHandler func
func ProxyHandler(ctx *fasthttp.RequestCtx) {
	// all proxy to localhost
	proxyServer.ServeHTTP(ctx)
}

func main() {
	if err := fasthttp.ListenAndServe(":8081", ProxyHandler); err != nil {
		log.Fatal(err)
	}
}

Websocket

import (
	"log"
	"text/template"

	"github.com/valyala/fasthttp"
	proxy "github.com/gophemt/fasthttp-reverse-proxy"
)

var (
	proxyServer = proxy.NewWSReverseProxy("localhost:8080", "/echo")
)

// ProxyHandler ... fasthttp.RequestHandler func
func ProxyHandler(ctx *fasthttp.RequestCtx) {
	switch string(ctx.Path()) {
	case "/":
		proxyServer.ServeHTTP(ctx)
	default:
		ctx.Error("Unsupported path", fasthttp.StatusNotFound)
	}
}

func main() {
	if err := fasthttp.ListenAndServe(":8081", ProxyHandler); err != nil {
		log.Fatal(err)
	}
}

usage

• use it alone
• use it with pool
• websocket

contrast

• HTTP benchmark
• Websocket benchmark

links:

• fasthttp
• standard httputil.ReverseProxy
• fasthttp/websocket
• koding/websocketproxy

Thanks