Integrating Relay with Redux in React Native App - reactjs

Question

I am new to react-native.My application currently uses redux,react-redux,router flux & navigator.
The back end i need to work with is GraphQL. What should i do now?
Can i integrate Relay to my app without affecting anything related to redux or should i dump redux and use relay?. What about lokka? Really confused!! Can someone help me with code examples or anything related to this issue?
Thanks in Advance :)

Answer 1

I use relay and redux in same application without much(I dont have any till today) issues(the App will be in production after few weeks). I could explain how I achieved it. (I am also new react-native and Js development, I don't claim this as the best approach, but at least it works for me as I intended)
Setting up of relay and graphQL almost took a day of effort. For this use following commands:-
npm install babel-core --save-dev
npm install babel-preset-react-native --save-dev
npm install babel-relay-plugin --save-dev
npm install react-relay --save
npm install graphql --save-dev
npm install sync-request --save-dev
then create a file named babelRelayPlugin.js and copy the below code.
const getBabelRelayPlugin = require('babel-relay-plugin')
const introspectionQuery = require('graphql/utilities').introspectionQuery
const request = require('sync-request')
const url = 'your_api_here'
const response = request('POST', url, {
qs: {
query: introspectionQuery
}
})
const schema = JSON.parse(response.body.toString('utf-8'))
module.exports = { plugins: [getBabelRelayPlugin(schema.data, { abortOnError: true })] }
and replace the code your .babelrc with this:-
{
"passPerPreset": true,
"presets": [
"./scripts/babelRelayPlugin",
"react-native"
]
}
following classes may need to use this import statement:-
import Relay, {
Route,
DefaultNetworkLayer
} from 'react-relay'
And my App.js file look like:-
function configureStore(initialState){
const enhancer = compose(applyMiddleware(
thunkMiddleware,
loggerMiddleware
),
autoRehydrate()
);
return createStore(reducer,initialState,enhancer);
}
const store = configureStore({});
persistStore(store, {storage: AsyncStorage})
////relay network layer injecting
Relay.injectNetworkLayer(new DefaultNetworkLayer('your_api'))
export default class App extends Component {
render() {
return (
<Provider store={store}>
{//here is your react-native-router-flux Navigation router}
<NavigationRouter/>
</Provider>
);
}
}
After injecting relay network layer, you could use the following code in any containers to call from relay. Here is an example render method of one of my containers:-
render() {
var value = 'some_value';
return (
<View style={{flex:1,justifyContent:'center',alignItems:'center'}}>
<Relay.RootContainer
Component={TestComponent}
//relay_route is imported from relay_route.js
route={new relay_route({id:value})}
renderFetched={(data)=> {
return (
<TestComponent parentProps={this.props} {...data} />
);}}
/>
</View>
);
the relay_route.js should look something like
class relay_route extends Route {
static paramDefinitions = {
userID: { required: true }
}
static queries = {
user: () => Relay.QL`
query {
user(id: $userID)
}
`
}
static routeName = 'UserRoute'
}
And My TestComponent looks like:-
class TestComponent extends Component {
render () {
const user = this.props.user
return (
<Text>name: {user.name}</Text>
)
}
}
export default TestComponent = Relay.createContainer(TestComponent, {
fragments: {
user: () => Relay.QL`
fragment on User {
id,
name
}
`
}
})
For any doubts regarding relay, this documentation is classy to help us