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Contribution Guidelines

Contributing to the development of libraries related to the Telegram Mini Apps platform is not difficult. We have a limited set of TypeScript packages and a bunch of scripts that will be useful during development. Before starting to contribute, it is better to discuss any proposed changes with the project owners via repository issues to avoid duplication of effort.

Cloning Repository

First of all, it is required to fetch the repository code (or its forked version). To do this, you can clone the repository using the Git command:

# Via SSH.
git clone git@github.com:Telegram-Mini-Apps/telegram-apps.git

or

# Via HTTPS.
git clone https://github.com/Telegram-Mini-Apps/telegram-apps.git

Once the repository is fetched, install project dependencies via pnpm (pnpm only, as long as the current repository is a pnpm monorepo):

pnpm i

Trying Your Code

This project contains an already configured application that can use any @telegram-apps package located in the packages folder. The application uses local versions of packages, not remote ones presented in some registry. The local playground represents almost the default Vite TypeScript application template with some additional tsconfig configuration, allowing the resolution of packages from the corresponding folder.

To run the local playground, use the following commands:

# Go to the application folder.
cd apps/local-playground

# Run Vite dev server.
pnpm run dev

This will make Vite start the development server using the index.html file placed in the application directory. In turn, this HTML file refers to the index.ts file that will be automatically transpiled by Vite and executed by the browser.

As the local playground refers to the actual code, you can make any changes in the packages directory to see the changes instantly. This will help you understand how the code you are going to change in @telegram-apps packages will work after your proposed changes.

After Changes Done

When you are done with making changes, it is required to write tests related to the changes. For this purpose, we use Vitest. Then, we should check if the repository status is correct.

Here is the list of commands you have to run:

# Run tests.
pnpm run packages:test

# Run eslint.
pnpm run packages:lint
# Or if you want to automatically fix problems:
pnpm run packages:lint:fix

# Check if packages are building successfully.
pnpm run packages:build

If all steps above were completed successfully and proposed changes require bumping some packages' versions, you have to describe changes using the changeset command:

changeset

You can learn more about Changeset here.

When changes are described (if required), don't forget to create a Pull Request and wait for the project owners to review it.