# Telegram Module setup

### Introduction

This documentation guides developers through the process of setting up a crypto wallet using Telegram and our module. By integrating the Telegram Login Widget and configuring it with the provided `data-auth-url`, developers can create Ethereum wallets for their users linked to their Telegram IDs. The response from this process includes essential user details and an Ethereum address for further use.

### Prerequisites

Before proceeding, ensure that you have the following prerequisites:

* A website or application where you want to implement the Telegram Login Widget.
* The Telegram API Token for your bot (which you can obtain from the [Telegram BotFather](https://core.telegram.org/bots#botfather)).
* Whitelist your website domain on the Bot settings.
* The `https://api.0xgasless.com/auth/telegram/callback` URL to configure the Telegram Login Widget.

### Step 1: Adding the Telegram Login Widget

1. In your website's HTML code, include the Telegram Login Widget with the following configuration:

```html
<script async src="https://telegram.org/js/telegram-widget.js?4"
        data-telegram-login="{your-bot-username}" 
        data-size="large"
        data-radius="10"
        data-auth-url="https://api.0xgasless.com/auth/telegram/callback">
</script>
```

Replace `{your-bot-username}` with your bot's username.

2. Add a button or element to trigger the Telegram Login Widget. For example:

```html
htmlCopy code<button id="telegram-login-button">Login with Telegram</button>
```

3. Make sure you have the Telegram widget script loaded before your code executes.

###

### Step 2: Handling the Callback

1. Capture the received data, including `id`, `username`, `first_name`, `last_name`, and `ethAddress`. This information will be returned as JSON data.
2. Store this user data in your database or use it as needed for your application.