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Contributing

Questions

If you have questions about implementation details, help or support, then please use our dedicated community forum at GitHub Discussions PLEASE NOTE: If you choose to instead open an issue for your question, your issue will be immediately closed and redirected to the forum.

Reporting Issues

If you have found what you think is a bug, please file an issue. PLEASE NOTE: Issues that are identified as implementation questions or non-issues will be immediately closed and redirected to GitHub Discussions

Suggesting new features

If you are here to suggest a feature, first create an issue if it does not already exist. From there, we will discuss use-cases for the feature and then finally discuss how it could be implemented.

Development

If you have been assigned to fix an issue or develop a new feature, please follow these steps to get started:

  • Fork this repository.

  • Install dependencies

    pnpm install

    • We use pnpm v9 for package management (run in case of pnpm-related issues).

      corepack enable && corepack prepare

    • We use nvm to manage node versions - please make sure to use the version mentioned in .nvmrc

      nvm use

  • Build all packages.

    pnpm build:all

  • Run development server.

    pnpm run watch

  • Implement your changes and tests to files in the src/ directory and corresponding test files.

  • Document your changes in the appropriate doc page.

  • Git stage your required changes and commit (see below commit guidelines).

  • Submit PR for review.

Running examples

  • Make sure you've installed the dependencies in the repo's root directory.

    pnpm install

  • If you want to run the example against your local changes, run below in the repo's root directory. Otherwise, it will be run against the latest TanStack Query release.

    pnpm run watch

  • Run below in the selected examples' directory.

    pnpm run dev

Note on examples/react-native

React Native example requires Expo to work. Please follow the instructions from example's README.md file to learn more.

Note on standalone execution

If you want to run an example without installing dependencies for the whole repo, just follow instructions from the example's README.md file. It will be then run against the latest TanStack Query release.

Online one-click setup

You can use Gitpod (An Online Open Source VS Code like IDE which is free for Open Source) for developing online. With a single click it will start a workspace and automatically:

  • clone the TanStack/query repo.

  • install all the dependencies in / and /docs.

  • run below in the root(/) to Auto-build files.

    npm start

  • run below in /docs.

    npm run dev

Open in Gitpod

Commit message conventions

TanStack/query is using Angular Commit Message Conventions.

We have very precise rules over how our git commit messages can be formatted. This leads to more readable messages that are easy to follow when looking through the project history.

Commit Message Format

Each commit message consists of a header, a body and a footer. The header has a special format that includes a type, a scope and a subject:

<type>(<scope>): <subject>
<BLANK LINE>
<body>
<BLANK LINE>
<footer>

The header is mandatory and the scope of the header is optional.

Any line of the commit message cannot be longer than 100 characters! This allows the message to be easier to read on GitHub as well as in various git tools.

Type

Must be one of the following:

  • feat: A new feature
  • fix: A bug fix
  • docs: Documentation only changes
  • style: Changes that do not affect the meaning of the code (white-space, formatting, missing semicolons, etc.)
  • refactor: A code change that neither fixes a bug nor adds a feature
  • perf: A code change that improves performance
  • test: Adding missing or correcting existing tests
  • chore: Changes to the build process or auxiliary tools and libraries such as documentation generation

Scope

The scope could be anything specifying place of the commit change. For example query-core, react-query etc...

You can use * when the change affects more than a single scope.

Subject

The subject contains succinct description of the change:

  • use the imperative, present tense: "change" not "changed" nor "changes"
  • don't capitalize first letter
  • no dot (.) at the end

Body

Just as in the subject, use the imperative, present tense: "change" not "changed" nor "changes". The body should include the motivation for the change and contrast this with previous behavior.

Footer

The footer should contain any information about Breaking Changes and is also the place to reference GitHub issues that this commit closes.

Breaking Changes should start with the word BREAKING CHANGE: with a space or two newlines. The rest of the commit message is then used for this.

Example

Here is an example of the release type that will be done based on a commit messages:

Commit message Release type
fix(pencil): stop graphite breaking when too much pressure applied Patch Release
feat(pencil): add graphiteWidth option Minor Feature Release
perf(pencil): remove graphiteWidth option

BREAKING CHANGE: The graphiteWidth option has been removed.
The default graphite width of 10mm is always used for performance reasons.		 Major Breaking Release

Revert

If the commit reverts a previous commit, it should begin with revert:, followed by the header of the reverted commit. In the body it should say: This reverts commit <hash>., where the hash is the SHA of the commit being reverted.

Pull requests

Maintainers merge pull requests by squashing all commits and editing the commit message if necessary using the GitHub user interface.

Use an appropriate commit type. Be especially careful with breaking changes.

Releases

For each new commit added to main with git push or by merging a pull request or merging from another branch, a GitHub action is triggered and runs the semantic-release command to make a release if there are codebase changes since the last release that affect the package functionalities.