Stickerify

Telegram bot to convert medias into the format required to be used as Telegram stickers

How to use the bot
How to create a new sticker
How to set up the project
How to run the bot locally
How to launch the bot using Docker
How to contribute to the project
Hacktoberfest
Useful information
Privacy policy
License

How to use the bot

You can use the bot going here: start it, and you can now send it the medias you need
to convert.

Based on what you send, Stickerify will answer the following:

the converted media, if you sent a supported file (images, GIFs, videos, and existing Telegram stickers are supported)
that needed conversion
no file, if you sent a media already suiting Telegram's requirements
an error message, if you sent either an unsupported or a corrupted file
an informative message for any message without a file

    flowchart LR
    A[User] -->|Message| B([Stickerify])
    B -->|Request contains a file| C{Is file supported?}
    click B "https://t.me/StickerifyImageBot" _blank
    style B fill: #2889ba, stroke: #e0e0e0, color: #e0e0e0
    C -->|Yes| D{Does file need conversion?}
    C -->|No| E(Error message)
    B -->|Request has only text| F{Is help or start command?}
    F -->|Yes| G(Show bot usage)
    F -->|No| H(About message)
    D -->|Yes| J(Convert file)
    D -->|No| K(No conversion)

How to create a new sticker

Chat with Stickers, and use it to create a sticker pack
Ask Stickers to add a new sticker
Use Stickerify to create the proper file for your sticker
Forward Stickerify's message to Stickers
Choose an emoji representing your sticker

And it's done!

How to set up the project

Install JDK 25 (or higher)
Clone the project and move into its folder
Run the command ./gradlew build -x test
Import the project inside your IDE as a Gradle project
Ensure your IDE is correctly configured to use a Java 25 (or higher) JDK

How to run the bot locally

After you successfully set up the project, you will have to go through the following steps:

Chat with BotFather and ask it to create a new bot
Copy the token it provided you and either:
- set it as the value of a new environment variable named STICKERIFY_TOKEN
- use it as the value passed to the super(botToken) constructor inside the class Stickerify
Install FFmpeg
Run the Main class to start the bot, it will be now able to answer messages in Telegram

How to launch the bot using Docker

Install Docker
Prepare the Docker image either:
- moving into the project folder and building the image with the command:
```
docker build -t rob93c/stickerify .
```
- pulling the image from Docker Hub:
```
docker pull rob93c/stickerify
```
Now you need to run the Docker image passing the token ({{TOKEN}}) retrieved
from BotFather:
```
docker run -e "STICKERIFY_TOKEN={{TOKEN}}" rob93c/stickerify
```

How to contribute to the project

Take a look at this project's contributing guidelines here.

Have any question? Consider opening a new discussion.

Hacktoberfest

Hacktoberfest is an event aiming to encourage people to contribute to open-source projects
every October.
This project adheres to this initiative and welcomes any hacktoberfest-related improvement!

If you would like to improve Stickerify as part of this event, first read
the contributing guidelines and then consider opening a new issue and/or pull request.

If your pull request represents a valid contribution to the project, it will be marked as hacktoberfest-accepted,
therefore counting towards the four-contribution goal.

Useful information

The bot is deployed on Railway
The official documentation of the Telegram Bot API can be found here
The library used by the bot to work with Telegram is Java Telegram Bot API
Video and image conversions use FFmpeg
Animated sticker validation uses Gson
MIME type analysis is performed using Apache Tika

Privacy Policy

The privacy policy can be found here.

License

See the LICENSE file for license rights and limitations (MIT).

Stickerifier/Stickerify