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title, sidebar_position
| title | sidebar_position |
|---|---|
| Web app | 1 |
The Mattermost web app is written in JavaScript using React and Redux.
Repository
It is located in the webapp directory of the main Mattermost repository.
https://github.com/mattermost/mattermost/tree/master/webapp
Help Wanted
Find help wanted tickets here.
Package structure
The web app is set up as a monorepo which has the code broken up into multiple packages. The main packages in the web app are:
channels- The main web app which contains Channels, the System Console, login/signup pages, and most of the core infrastructure for the app.src/. Key folders include:actions- Contains Redux actions which make up much of the view logic for the web appcomponents- Contains UI components and views written using Reacti18n- Contains the localization files for the web apppackages/mattermost-redux- Contains most of the Redux logic used for handling data from the serverplugins- Contains the plugin framework, utility functions and componentsreducers- Contains Redux reducers used for view stateselectors- Contains Redux selectors used for view statetests- Contains setup code and mocks used for unit testingutils- Contains many widely-used utility functions
platform- Packages used by the web app and related projectsclient- The JavaScript client for Mattermost's REST API, available on NPM as @mattermost/clientcomponents- A work-in-progress package containing UI components designed to be used by different parts of Mattermosttypes- The TypeScript types used by Mattermost, available on NPM as @mattermost/types
Important libraries and technologies
- React - React is a user interface library used for React apps. Its key feature is that it uses a variation of JavaScript called JSX to declaratively define interfaces using HTML-like syntax.
- Redux - Redux is a state management library used for JavaScript apps. Its key features are a centralized data store for the entire app and a pattern for predictably modifying and displaying that application state. Notably, we're not using Redux Toolkit since a large portion of our Redux code predates its existence.
- Redux Thunk - Redux Thunk is a middleware for Redux that's used to write async actions and logic that interacts more closely with the Redux store.
- React Redux - React Redux is the library used to connect React components to a Redux store.
Legacy Notes
Note that the webapp was previously located at https://github.com/mattermost/mattermost-webapp/. You may find additional history in this repository that was not migrated back to https://github.com/mattermost/mattermost when forming the monorepo.