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Full Redux Example 

Redux example has been updated to a fully working + tested version. Previously things such as the createReducer function were skipped.
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Scott 2017-08-31 00:34:04 -07:00 committed by Scott Prue
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docs/redux.md
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@ -8,74 +8,193 @@ when it comes to integrating with other modules such a [`react-redux`](https://g
[`react-redux-firebase`](http://docs.react-redux-firebase.com/history/v2.0.0) provides simplified and standardized common redux/firebase logic. [`react-redux-firebase`](http://docs.react-redux-firebase.com/history/v2.0.0) provides simplified and standardized common redux/firebase logic.
To add `react-redux-firebase` to your project: To add `react-redux-firebase` to your project:
1. Make sure you already have `redux`, `react-redux`, `redux-thunk` installed (if not, run `npm i --save redux react-redux redux-thunk`)
1. Run `npm i --save react-redux-firebase@canary` *we point to canary here to get current progress with v2.0.0* 1. Run `npm i --save react-redux-firebase@canary` *we point to canary here to get current progress with v2.0.0*
1. Pass `react-native-firebase` instance into `reactReduxFirebase` when creating store: 1. Add `firebaseStateReducer` under `firebase` key within reducer:
**reducers.js**
```js
import { combineReducers } from 'redux';
import { firebaseStateReducer } from 'react-redux-firebase';
export const makeRootReducer = (asyncReducers) => {
return combineReducers({
// Add sync reducers here
firebase: firebaseStateReducer,
...asyncReducers
});
};
export default makeRootReducer;
// Useful for injecting reducers as part of async routes
export const injectReducer = (store, { key, reducer }) => {
store.asyncReducers[key] = reducer
store.replaceReducer(makeRootReducer(store.asyncReducers))
};
```
1. Pass `react-native-firebase` App instance into `reactReduxFirebase` when creating store:
**createStore.js**
```js ```js
import { applyMiddleware, compose, createStore } from 'redux'; import { applyMiddleware, compose, createStore } from 'redux';
import { getFirebase } from 'react-redux-firebase'
import RNFirebase from 'react-native-firebase'; import RNFirebase from 'react-native-firebase';
import { getFirebase, reactReduxFirebase } from 'react-redux-firebase';
import thunk from 'redux-thunk';
import makeRootReducer from './reducers';
const reactNativeFirebaseConfig = { const reactNativeFirebaseConfig = {
debug: true debug: true
}; };
const firebase = RNFirebase.initializeApp(reactNativeFirebaseConfig);
// for more config options, visit http://docs.react-redux-firebase.com/history/v2.0.0/docs/api/compose.html // for more config options, visit http://docs.react-redux-firebase.com/history/v2.0.0/docs/api/compose.html
const reduxFirebaseConfig = { const reduxFirebaseConfig = {
userProfile: 'users', // save users profiles to 'users' collection userProfile: 'users', // save users profiles to 'users' collection
} };
const middleware = [ export default (initialState = { firebase: {} }) => {
thunk.withExtraArgument({ getFirebase }), // initialize firebase
// place other middleware here const firebase = RNFirebase.initializeApp(reactNativeFirebaseConfig);
];
const store = createStore( const middleware = [
reducer, // make getFirebase available in third argument of thunks
{}, // initial state thunk.withExtraArgument({ getFirebase }),
compose( ];
reactReduxFirebase(firebase, reduxConfig), // pass in react-native-firebase instance instead of config
applyMiddleware(...middleware) const store = createStore(
) makeRootReducer(),
) initialState,
compose(
reactReduxFirebase(firebase, reduxFirebaseConfig), // pass initialized react-native-firebase app instance
applyMiddleware(...middleware)
)
);
return store;
};
``` ```
1. Then in your components you can use `firebaseConnect` to gather data from Firebase and place it into redux:
1. Wrap in `Provider` from `react-redux`:
**index.js**
```js ```js
import { isLoaded } from 'react-redux-firebase' import React from 'react';
import { compose } from 'redux'; import { Provider } from 'react-redux';
const Todos = ({ todos }) => { import createStore from './createStore';
if (!isLoaded(todos)) { import Todos from './Todos';
return <div>Loading...</div>
}
if (isEmpty(todos)) {
return <div>No Todos Found</div>
}
return (
<div>
Object.keys(todos).map((key, id) => (
<div>
{todos[key].text}
Complete: {todos[key].isComplete}
</div>
))
</div>
)
}
compose( // Store Initialization
firebaseConnect([ const initialState = { firebase: {} };
{ path: 'todos' } let store = createStore(initialState);
]),
connect(({ firebase: { data: { todos } } }) => { const Main = () => (
todos <Provider store={store}>
}) <Todos />
)(Todos) </Provider>
);
export default Main;
``` ```
Notice how `connect` is still used to get data out of `redux` since `firebaseConnect` only loads data **into** redux. 1. Then you can use the `firebaseConnect` HOC to wrap your components. It makes it easy to set listeners which gather data from Firebase and place it into redux:
**Home.js**
```js
import React from 'react';
import { compose } from 'redux';
import { connect } from 'react-redux';
import { isLoaded, isEmpty, firebaseConnect } from 'react-redux-firebase';
import { View, Text, StyleSheet, ActivityIndicator } from 'react-native';
import NewTodo from './NewTodo';
import Todos from './Todos';
class Home extends React.Component {
state = {
text: null
}
completeTodo = (key, todo) => {
return this.props.firebase.update(`todos/${key}`, { done: !todo.done })
}
addTodo = () => {
const { text } = this.state;
return this.props.firebase.push('todos', { text, completed: false });
}
render() {
const { todos } = this.props;
return (
<View>
<Text>Todos</Text>
<NewTodo
onNewTouch={this.addTodo}
newValue={this.state.text}
onInputChange={(v) => this.setState({text: v})}
/>
{
!isLoaded(todos)
? <ActivityIndicator size="large" style={{ marginTop: 100 }}/>
: null
}
{
isLoaded(todos) && !isEmpty(todos)
?
<Todos
todos={todos}
onItemTouch={this.completeTodo}
/>
:
<View style={styles.container}>
<Text>No Todos Found</Text>
</View>
}
</View>
);
}
}
export default compose(
firebaseConnect([
// create listener for firebase data -> redux
{ path: 'todos', queryParams: ['limitToLast=15'] }
]),
connect((state) => ({
// todos: state.firebase.data.todos, // todos data object from redux -> props.todos
todos: state.firebase.ordered.todos, // todos ordered array from redux -> props.todos
}))
)(Home);
```
**Todos.js**
```js
import React from 'react'
import {
View,
Text,
StyleSheet,
FlatList,
TouchableHighlight
} from 'react-native';
const Todos = ({ todos, onItemTouch }) => (
<FlatList
data={todos.reverse()}
renderItem={({ item: { key, value } }) => (
<TouchableHighlight onPress={() => onItemTouch(key, value)}>
<View>
<Text>{value.text}</Text>
<Text>Done: {value.done === true ? 'True' : 'False'}</Text>
</View>
</TouchableHighlight>
)}
/>
)
export default Todos;
```
Notice how `connect` is still used to get data out of `redux` since `firebaseConnect` only loads data **into** redux.
Full source with styling available [in the react-native-firebase example for react-redux-firebase](https://github.com/prescottprue/react-redux-firebase/tree/v2.0.0/examples/complete/react-native-firebase)
For more details, please visit [`react-redux-firebase`'s react-native section](http://docs.react-redux-firebase.com/history/v2.0.0/docs/recipes/react-native.html#native-modules). For more details, please visit [`react-redux-firebase`'s react-native section](http://docs.react-redux-firebase.com/history/v2.0.0/docs/recipes/react-native.html#native-modules).