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reactfire/README.md
2019-08-05 11:29:48 -07:00

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# Reactfire
Hooks, Context Providers, and Components that make it easy
to interact with Firebase.
> If you're looking for docs for the _deprecated_ ReactFire v1 (the one that uses mixins), click [here](https://github.com/FirebaseExtended/reactfire/tree/v1.0.0)
## What is ReactFire?
- **Easy realtime updates for your function components** - Reactfire's hooks, like `useFirestoreCollection` and `useUser`, let you easily subscribe to events, and automatically unsubscribe when your component unmounts.
- **Loading states handled by `<Suspense>`** - Reactfire's hooks throw promises that Suspense can catch. No more `isLoaded ?...` - let React [handle it for you](https://reactjs.org/blog/2018/11/27/react-16-roadmap.html#react-166-shipped-the-one-with-suspense-for-code-splitting).
- **Dead-simple Real User Monitoring (RUM)** - Easily enable Firebase Performance Monitoring's [automatic traces](https://firebase.google.com/docs/perf-mon/automatic-web), and instrument your Suspenseful loads with Reactfire's `<SuspenseWithPerf>` component
Status: Alpha
## Install
```bash
# npm
npm install reactfire
# yarn
yarn add reactfire
```
## Example use
Check out the [live version on StackBlitz](https://stackblitz.com/edit/reactfire-sample)!
```jsx
import React, { Component } from 'react';
import { render } from 'react-dom';
import './style.css';
import {
FirebaseAppProvider,
useFirestoreDoc,
useFirebaseApp,
SuspenseWithPerf
} from 'reactfire';
import 'firebase/performance';
import 'firebase/firestore';
const firebaseConfig = {
/* add your config object from the Firebase console */
};
function Burrito() {
// create a ref
const firebaseApp = useFirebaseApp();
const burritoRef = firebaseApp
.firestore()
.collection('tryreactfire')
.doc('burrito');
// subscribe to the doc. just one line!
// throws a Promise for Suspense to catch,
// and then streams live updates
const burritoDoc = useFirestoreDoc(burritoRef);
// get the value from the doc
const isYummy = burritoDoc.data().yummy;
return <p>The burrito is {isYummy ? 'good' : 'bad'}!</p>;
}
function App() {
return (
<FirebaseAppProvider firebaseConfig={firebaseConfig} initPerformance>
<h1>🌯</h1>
<SuspenseWithPerf
fallback={'loading burrito status...'}
traceId={'load-burrito-status'}
>
<Burrito />
</SuspenseWithPerf>
</FirebaseAppProvider>
);
}
render(<App />, document.getElementById('root'));
```
## Learn More
- [**Quickstart**](./docs/quickstart.md)
- [**Common Use Cases**](./docs/use.md)
- [**API Reference**](./docs/reference.md)
## Contributing
### For development
1. `yarn install`
1. `cd` into the _reactfire/reactfire_ directory. run `yarn run watch`.
1. In a new terminal, `cd` into the _reactfire/sample-simple_ directory. run `yarn start`.
1. Head over to https://localhost:3000 to see the running sample
### Testing
1. `cd` into the _reactfire/reactfire_ directory
1. run `yarn test`