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engine.io for golang, a transport-based cross-browser/cross-device bi-directional communication layer.

License: Other

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go-engine.io's Introduction

go-engine.io

go-engine.io is the implement of engine.io in golang, which is transport-based cross-browser/cross-device bi-directional communication layer for go-socket.io.

It is compatible with node.js implement, and supported long-polling and websocket transport.

Install

Install the package with:

go get github.com/googollee/go-engine.io

Import it with:

import "github.com/googollee/go-engine.io"

and use engineio as the package name inside the code.

Example

Please check example folder for details.

package main

import (
	"encoding/hex"
	"io/ioutil"
	"log"
	"net/http"

	"github.com/googollee/go-engine.io"
)

func main() {
	server, err := engineio.NewServer(nil)
	if err != nil {
		log.Fatal(err)
	}

	go func() {
		for {
			conn, _ := server.Accept()
			go func() {
				defer conn.Close()
				for i := 0; i < 10; i++ {
					t, r, _ := conn.NextReader()
					b, _ := ioutil.ReadAll(r)
					r.Close()
					if t == engineio.MessageText {
						log.Println(t, string(b))
					} else {
						log.Println(t, hex.EncodeToString(b))
					}
					w, _ := conn.NextWriter(t)
					w.Write([]byte("pong"))
					w.Close()
				}
			}()
		}
	}()

	http.Handle("/engine.io/", server)
	http.Handle("/", http.FileServer(http.Dir("./asset")))
	log.Println("Serving at localhost:5000...")
	log.Fatal(http.ListenAndServe(":5000", nil))
}