Try rrweb
# rrweb
**[The rrweb documentary (in Chinese, with English subtitles)](https://www.bilibili.com/video/BV1wL4y1B7wN?share_source=copy_web)**
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[](https://www.jsdelivr.com/package/npm/rrweb)
[δΈζζζ‘£](./README.zh_CN.md)
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rrweb refers to 'record and replay the web', which is a tool for recording and replaying users' interactions on the web.
## Guide
[**π Read the rrweb guide here. π**](./guide.md)
[**π³ Recipes π³**](./docs/recipes/index.md)
## Project Structure
rrweb is mainly composed of 3 parts:
- **[rrweb-snapshot](https://github.com/rrweb-io/rrweb/tree/master/packages/rrweb-snapshot/)**, including both snapshot and rebuilding features. The snapshot is used to convert the DOM and its state into a serializable data structure with a unique identifier; the rebuilding feature is to rebuild the snapshot into corresponding DOM.
- **[rrweb](https://github.com/rrweb-io/rrweb)**, including two functions, record and replay. The record function is used to record all the mutations in the DOM; the replay is to replay the recorded mutations one by one according to the corresponding timestamp.
- **[rrweb-player](https://github.com/rrweb-io/rrweb/tree/master/packages/rrweb-player/)**, is a player UI for rrweb, providing GUI-based functions like pause, fast-forward, drag and drop to play at any time.
## Roadmap
- rrdom: an ad-hoc DOM for rrweb session data [#419](https://github.com/rrweb-io/rrweb/issues/419)
- storage engine: do deduplication on a large number of rrweb sessions
- more end-to-end tests
- compact mutation data in common patterns
- provide plugins via the new plugin API, including:
- XHR plugin
- fetch plugin
- GraphQL plugin
- ...
## Internal Design
- [serialization](./docs/serialization.md)
- [incremental snapshot](./docs/observer.md)
- [replay](./docs/replay.md)
- [sandbox](./docs/sandbox.md)
## Contribute Guide
Since we want the record and replay sides to share a strongly typed data structure, rrweb is developed with typescript which provides stronger type support.
[Typescript handbook](https://www.typescriptlang.org/docs/handbook/declaration-files/introduction.html)
1. Fork the rrweb component repository you want to patch.
2. Run `yarn install` to install required dependencies.
3. Patch the code and pass all the tests.
4. Push the code and create a pull request.
In addition to adding integration tests and unit tests, rrweb also provides a REPL testing tool.
[Using the REPL tool](./guide.md#REPL-tool)
## Core Team Members
## Who's using rrweb
