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main.go
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main.go
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package main
import (
"flag"
"fmt"
"log"
"github.com/fasthttp/websocket"
"github.com/valyala/fasthttp"
)
var upgrader = websocket.FastHTTPUpgrader{
CheckOrigin: func(ctx *fasthttp.RequestCtx) bool { return true },
}
func applesView(ctx *fasthttp.RequestCtx) {
err := upgrader.Upgrade(ctx, func(ws *websocket.Conn) {
defer ws.Close()
for {
mt, message, err := ws.ReadMessage()
if err != nil {
log.Println("read error:", err)
break
}
log.Printf("'applesView' recv: %s", message)
log.Printf("'applesView' query args: %v", ctx.QueryArgs())
err = ws.WriteMessage(mt, []byte("You are talking about apples"))
if err != nil {
log.Println("'applesView' write error:", err)
break
}
}
})
if err != nil {
if _, ok := err.(websocket.HandshakeError); ok {
log.Println(err)
}
return
}
log.Println("'applesView' connection done")
}
func orangesView(ctx *fasthttp.RequestCtx) {
err := upgrader.Upgrade(ctx, func(ws *websocket.Conn) {
defer ws.Close()
for {
mt, message, err := ws.ReadMessage()
if err != nil {
log.Println("read error:", err)
break
}
log.Printf("'orangesView' recv: %s", message)
log.Printf("'orangesView' query args: %v", ctx.QueryArgs())
err = ws.WriteMessage(mt, []byte("You are talking about oranges"))
if err != nil {
log.Println("'orangesView' write error:", err)
break
}
}
})
if err != nil {
if _, ok := err.(websocket.HandshakeError); ok {
log.Println(err)
}
return
}
log.Println("'orangesView' connection done")
}
func main() {
flag.Parse()
log.SetFlags(0)
requestHandler := func(ctx *fasthttp.RequestCtx) {
switch string(ctx.Path()) {
case "/talk_about/apples":
applesView(ctx)
case "/talk_about/oranges":
orangesView(ctx)
default:
ctx.Error("Unsupported path", fasthttp.StatusNotFound)
}
}
server := fasthttp.Server{
Name: "EchoExample with dynamic routing",
Handler: requestHandler,
}
port := 8080
log.Println("Starting main server on:", port)
log.Fatal(server.ListenAndServe(fmt.Sprintf(":%d", port)))
}