Laravel Send Telegram Notifications To Telegram Group via Telegram Bot

To send messages to a Telegram group using Laravel, you can utilize the Telegram Bot API and the Laravel HTTP client. Here’s a step-by-step guide:

Step 1: Create a Blade file with a message box

Create a new Blade file, for example, send_message.blade.php in the resources/views directory of your Laravel project. Add the following code to create a simple form with a message box where users can type the message they want to send to the Telegram group.

<!-- resources/views/send_message.blade.php -->

@extends('layouts.app')

@section('content')
<div class="container">
    <h1>Send Message to Telegram Group</h1>
    <form method="POST" action="{{ route('sendMessage') }}">
        @csrf
        <div class="form-group">
            <label for="message">Message:</label>
            <textarea class="form-control" id="message" name="message" rows="3"></textarea>
        </div>
        <button type="submit" class="btn btn-primary">Send Message</button>
    </form>
</div>
@endsection

Step 2: Create a route to send the message

Add a new route in your routes/web.php file that points to the controller function responsible for sending the message.

// routes/web.php

use App\Http\Controllers\TelegramController;

Route::get('/send-message', [TelegramController::class, 'showSendMessageForm'])->name('showSendMessageForm');
Route::post('/send-message', [TelegramController::class, 'sendMessage'])->name('sendMessage');

Step 3: Create a controller to handle the message sending

Create a new controller named TelegramController that will handle the message sending logic. Run the following command to generate the controller:

php artisan make:controller TelegramController

Then, update the TelegramController with the following code:

// app/Http/Controllers/TelegramController.php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Http;

class TelegramController extends Controller
{
    // Show the form to send a message
    public function showSendMessageForm()
    {
        return view('send_message');
    }

    // Get the group chat ID where the bot is added
    public function getGroupChatId()
    {
        $response = Http::get("https://api.telegram.org/botYOUR_BOT_TOKEN/getUpdates");
        $data = $response->json();

        if (isset($data['result']) && !empty($data['result'])) {
            // The latest update should contain the group chat ID
            $latestUpdate = end($data['result']);
            $groupChatId = $latestUpdate['message']['chat']['id'];
            
            return $groupChatId;
        }

        return null; // No group chat ID found
    }

    // Send the message to the Telegram group
    public function sendMessage(Request $request)
    {
        $message = $request->input('message');
        $groupChatId = $this->getGroupChatId();

        if (!$groupChatId) {
            return redirect()->back()->with('error', 'Group chat ID not found.');
        }

        // Send the message to the Telegram group
        Http::post("https://api.telegram.org/botYOUR_BOT_TOKEN/sendMessage", [
            'chat_id' => $groupChatId,
            'text' => $message,
        ]);

        return redirect()->back()->with('success', 'Message sent successfully!');
    }
}

Replace YOUR_BOT_TOKEN with the actual bot token obtained from the BotFather. The getGroupChatId() function will fetch the latest updates from the Telegram API and extract the group chat ID from the message object.

Step 5: Display the form to send the message

Now, when you visit the URL /send-message, you should see the form to send a message to the Telegram group. Fill in the message and click the “Send Message” button. The message will be sent to the specified Telegram group using the Telegram Bot API.

Please make sure to handle form validation and error handling as per your requirements in the controller and the Blade file.

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