Creating a WebSocket client

This subsection shows how to program a WebSocket client in Go. The client reads user data, sends it to the server, and reads the server response. The client directory contains the implementation of the WebSocket client. The gorilla/websocket package is going to help us develop the WebSocket client.

The code of ./client/client.go is as follows:

package main
import (
    "bufio"
    "fmt"
    "log"
    "net/url"
    "os"
    "os/signal"
    "syscall"
    "time"
    "github.com/gorilla/websocket"
)
var (
    SERVER       = ""
    PATH         = ""
    TIMESWAIT    = 0
    TIMESWAITMAX = 5
    in           = bufio.NewReader(os.Stdin)
)

The in variable is just a shortcut for bufio.NewReader(os.Stdin).

func getInput(input chan string) {
    result, err := in.ReadString('\n')
    if err != nil {
        log.Println(err)
    ...