SocialDragon/socialdragon/socket.go

package main

import (
	"log"
	"net/http"

	"git.1750studios.com/AniNite/SocialDragon/database"

	"github.com/gorilla/websocket"
)

var wsupgrader = websocket.Upgrader{
	ReadBufferSize:  1024,
	WriteBufferSize: 1024,
	CheckOrigin: func(r *http.Request) bool {
		return true
	},
}
var sockets []*websocket.Conn
var lastID uint

func wsHandler(w http.ResponseWriter, r *http.Request) {
	conn, err := wsupgrader.Upgrade(w, r, nil)
	if err != nil {
		log.Printf("Failed to set websocket upgrade: %+v", err)
		return
	}
	sockets = append(sockets, conn)
	for {
		_, _, err := conn.ReadMessage()
		if err != nil {
			break
		}
	}
}

// SendUpdate sends the content of IT to all connected webcosckets, gets called by database handler.
func SendUpdate(IT database.Item) {
	for i, socket := range sockets {
		err := socket.WriteJSON(IT)
		if err != nil {
			sockets = append(sockets[:i], sockets[i+1:]...)
			continue
		}
	}
}