go whatsapp

wa.go

package main

import (
    "fmt"
    "log"
    "os"
    "os/signal"
    "syscall"
    "time"

    "github.com/Rhymen/go-whatsapp"
)

func main() {
    // buat instance WhatsApp client
    wac, err := whatsapp.NewConnWithLogin(context.Background(), &whatsapp.Login{
        Phone:    "+6281234567890",  // nomor telepon Anda
        Password: "password_anda",  // password WhatsApp Anda
    })
    if err != nil {
        log.Fatalf("Error creating WhatsApp connection: %v", err)
    }

    // buat channel untuk menerima pesan masuk
    cm := make(chan whatsapp.TextMessage)
    wac.AddHandler(&waHandler{cm})

    // tunggu hingga pesan masuk
    fmt.Println("Waiting for incoming message...")
    sigChan := make(chan os.Signal, 1)
    signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM, syscall.SIGKILL)
    select {
    case message := <-cm:
        // tampilkan pesan yang diterima
        fmt.Printf("Received message from %s: %s\n", message.Info.RemoteJID, message.Text)

        // balas pesan dengan pesan yang sama
        reply := whatsapp.TextMessage{
            Info: whatsapp.MessageInfo{
                RemoteJID: message.Info.RemoteJID,
            },
            Text: message.Text,
        }
        if _, err := wac.Send(reply); err != nil {
            log.Fatalf("Error sending message: %v", err)
        }
        fmt.Printf("Sent message to %s: %s\n", reply.Info.RemoteJID, reply.Text)
    case <-sigChan:
        // tutup koneksi WhatsApp saat aplikasi berhenti
        wac.Disconnect()
        fmt.Println("Disconnected from WhatsApp")
        os.Exit(0)
    }
}

type waHandler struct {
    cm chan<- whatsapp.TextMessage
}

func (h *waHandler) HandleError(err error) {
    log.Printf("WhatsApp error: %v", err)
}

func (h *waHandler) HandleTextMessage(message whatsapp.TextMessage) {
    // terima pesan masuk dan kirim ke channel
    h.cm <- message
}

not testing