A PHP class that can be used in a Laravel project to send response messages to the Telegram Bot API.

Telegram.php

<?php

namespace App\Helpers;

use GuzzleHttp\Client;

class Telegram
{
    private $chat_id;
    private $message_id;
    private $api_key;
    private $base_uri = 'https://api.telegram.org/';
    private $client;

    public function __construct()
    {
        if (!env('TELEGRAM_KEY'))
        {
            throw new Exception('Telegram key not set. Please set TELEGRAM_KEY in .env file.');
        }

        $this->api_key = urlencode(env('TELEGRAM_KEY'));
        $this->client = new Client([
            'base_uri' => $this->base_uri,
            'headers' => [
                'Content-type' => 'application/json'
            ]
        ]);
    }

    public function setChatId($id)
    {
        $this->chat_id = $id;
        return $this;
    }

    public function setMessageId($id)
    {
        $this->message_id = $id;
        return $this;
    }

    public function sendAnimation($image, $caption)
    {
        return $this->send('/sendAnimation', [
            'chat_id' => $this->chat_id,
            'animation' => $image,
            'caption' => $caption.' - Powered by GIPHY',
            'reply_to_message_id' => $this->message_id
        ]);
    }

    public function sendMessage($text)
    {
        return $this->send('/sendMessage', [
            'chat_id' => $this->chat_id,
            'text' => $text,
            'reply_to_message_id' => $this->message_id
        ]);
    }

    public function sendPoll($question, $options)
    {
        return $this->send('/sendPoll', [
            'chat_id' => $this->chat_id,
            'question' => $question,
            'options' => $options,
            'reply_to_message_id' => $this->message_id
        ]);
    }

    public function sendLocation($location)
    {
        return $this->send('/sendLocation', [
            'chat_id' => $this->chat_id,
            'longitude' => $location['longitude'],
            'latitude' => $location['latitude'],
            'reply_to_message_id' => $this->message_id
        ]);
    }

    private function send($url, $json)
    {
        if (!app()->environment('production'))
        {
            return response($json, 200);
        }
        
        $this->client->post('bot'.$this->api_key.$url, [
            'json' => $json
        ]);
    }
}