client.go

/*
	Dial() from  x/net/websocket is used to connect to the ws server.
	NOTE: server is in /cmd/ws/main.go
*/
package main

import (
	"log"
	"golang.org/x/net/websocket"
)

type Message struct{
	RoomId string
	Data string
}


func main() {

	origin := "http://localhost/"
	url := "ws://localhost:8080/ws" // server url

	ws, err := websocket.Dial(url, "", origin) // try connecting

	// on failure to open connection
	if err != nil {
		log.Fatal(err)
	}

	// upon successful connection send a string
	message := Message{
		RoomId: "abc",
		Data: "Hey there, this message is from client",
	}
	if  err := websocket.JSON.Send(ws, message); err != nil {
		log.Fatal("Error in sending: ",err)
	}

	// count of bytes and message is recieved
	var recievedMsg Message
	
	if err = websocket.JSON.Receive(ws,&recievedMsg); err != nil {
		log.Fatal(err)
	}
	log.Println(recievedMsg.RoomId)
	log.Println(recievedMsg.Data)
}