botman io + laravel not continue conversations - php

Question

I am trying to start a conversation in laravel 7 and botman 2 with telegram. All works fine as but unable to continue the conversations. When I am trying to answer any previous question of the conversation it assuming to start the new conversation and not asking the 2nd question of the conversation thread.
The telegram webhook url i set is :
/api/telegram-bot
My routes/api.php
Route::post('/telegram-bot', 'TelegramController#bot');
TelegramController.php
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Template
use App\Channel;
use Config;
use BotMan\BotMan\BotMan;
use BotMan\BotMan\BotManFactory;
use BotMan\BotMan\Drivers\DriverManager;
use App\Conversations\BankingConversation;
class TelegramController extends Controller{
public function bot(){
$config = [
"telegram" => [
"token" => "{MY_BOT_TOKEN}",
'conversation_cache_time' => 30
]
];
DriverManager::loadDriver(\BotMan\Drivers\Telegram\TelegramDriver::class);
$botman = BotManFactory::create($config);
$botman->hears('(hi|hello|start)', function (BotMan $bot) {
$bot->startConversation(new BankingConversation , \BotMan\Drivers\Telegram\TelegramDriver::class );
});
$botman->fallback(function($bot) {
$bot->reply('Sorry, I did not understand you. Just type start to continue.');
});
$botman->listen();
}
}
and finally the BankingConversation
<?php
namespace App\Conversations;
use Illuminate\Foundation\Inspiring;
use BotMan\BotMan\Messages\Incoming\Answer;
use BotMan\BotMan\Messages\Outgoing\Question;
use BotMan\BotMan\Messages\Outgoing\Actions\Button;
use BotMan\BotMan\Messages\Conversations\Conversation;
class BankingConversation extends Conversation
{
protected $fullname;
protected $email;
public function askFullname()
{
$welcome = 'Hey ';
$this->ask($welcome.' What is your name ?', function(Answer $answer) {
// Save result
$this->fullname = $answer->getText();
$this->say('Nice to meet you '.$this->fullname);
$this->askEmail();
});
}
public function askEmail()
{
$this->ask('One more thing - what is your email?', function(Answer $answer) {
// Save result
$this->email = $answer->getText();
$this->say('Great - that is all we need, '.$this->firstname);
});
}
public function run()
{
// This will be called immediately
$this->askFullname();
}
}
Whenever is am typing hi/hello/start it's asking me first question of conversation "Hey What is your name ?"
But after replying to the question it's going to fallback and returning "Sorry, I did not understand you. Just type start to continue."
What is the mistake i am doing here ?

Answer 1

You have not specified the cache driver.
update section of your code.
DriverManager::loadDriver(\BotMan\Drivers\Telegram\TelegramDriver::class);
$botman = BotManFactory::create($config, new \BotMan\BotMan\Cache\LaravelCache());
Botman uses cache to maintain the conversation.