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A live-editing time travel environment for .
Note that the implemention in this repository is different from . Please refer to the latter for browser extension.
Lets you inspect every state and action payload
Lets you go back in time by “cancelling” actions
If you change the reducer code, each “staged” action will be re-evaluated
If the reducers throw, you will see during which action this happened, and what the error was
With persistState() store enhancer, you can persist debug sessions across page reloads
Clone the project:
Run npm install in the package folder:
Now you can open an example folder and run npm install there:
Finally, run the development server and open the page:
Try clicking on actions in the log, or changing some code inside the reducers. You should see the action log re-evaluate the state on every code change.
Also try opening http://localhost:3000/?debug_session=123, click around, and then refresh. You should see that all actions have been restored from the local storage.
Some crazy ideas for custom monitors:
A slider that lets you jump between computed states just by dragging it
An in-app layer that shows the last N states right in the app (e.g. for animation)
A time machine like interface where the last N states of your app reside on different Z layers
In fact some of these are implemented already:
(Does not have a UI but can wrap any other monitor)
Create a PR to add your custom monitor.
MIT
Redux DevTools is a development time package that provides power-ups for your Redux development workflow. Be careful to strip its code in production (see for instructions)! To use Redux DevTools, you need to choose a “monitor”—a React component that will serve as a UI for the DevTools. Different tasks and workflows require different UIs, so Redux DevTools is built to be flexible in this regard. We recommend using for inspecting the state and time travel, and wrap it in a to quickly move it across the screen. That said, when you’re comfortable rolling up your own setup, feel free to do this, and share it with us.
If you came here looking for what do the “Reset”, “Revert”, “Sweep” or “Commit” buttons do, check out .
If you don’t want to bother with installing Redux DevTools and integrating it into your project, consider using for Chrome and Firefox. It provides access to the most popular monitors, is easy to configure to filter actions, and doesn’t require installing any packages.
Read the installation for integration instructions and usage examples (<DevTools> component, DevTools.instrument(), exclude from production builds, gotchas).
DevTools accepts monitor components so you can build a completely custom UI. and are just examples of what is possible.
Feel free to come up with and implement your own! Check propTypes to see what you can do.
