React Native + Redux component renders before store action's complete - react-native

Question

I have react native application with redux, where user get nevigated to home component after successful login. But home component get rendered before it receive user profile through store. If I use 'Home' component as connected component then on re-render it receives profile.
It is a correct flow or do I able to delay rendering of 'Home' till store is populated with new data.
Here is code
Types
export const FETCH_PROFILE = 'FETCH_PROFILE';
export const UPDATE_PROFILE = 'UPDATE_PROFILE';
export const DELETE_PROFILE = 'DELETE_PROFILE';
export const FETCH_STREAMS = 'FETCH_STREAMS';
Reducer
export default function profile(state = {}, action) {
switch (action.type) {
case types.FETCH_PROFILE:
return {
...state,
profile: action.profile
}
case types.UPDATE_PROFILE:
return {
...state,
profile: action.profile
}
case types.DELETE_PROFILE:
return {
...state,
profile: null
};
default:
return state;
}
}
Actions
var PROFILE_KEY = "#myApp:profile";
export function fetchProfile() {
return dispatch => {
AsyncStorage.getItem(PROFILE_KEY)
.then((profileString) => {
dispatch({
type: types.FETCH_PROFILE,
profile: profileString ? JSON.parse(profileString) : {}
})
})
}
}
export function updateProfile(data) {
return dispatch => {
AsyncStorage.setItem(PROFILE_KEY, JSON.stringify(data))
.then(() => {
dispatch({
type: types.UPDATE_PROFILE,
profile: data
})
})
}
}
export function deleteProfile() {
return dispatch => {
AsyncStorage.removeItem(PROFILE_KEY)
.then(() => {
dispatch({
type: types.DELETE_PROFILE
})
})
}
}
Login Component
class Login extends React.Component {
constructor(props) {
super(props);
this.state = {
username: "",
password: "",
error: "",
showProgress: false,
};
}
_focusNextField(nextField) {
this.refs[nextField].focus();
}
_onLoginPressed() {
this.setState({showProgress: true});
this._login();
}
async _login() {
try {
let response = await fetch( BASE_URL + url, {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
},
body: JSON.stringify({
user: {
email: this.state.username,
password: this.state.password,
}
})
});
let res = await response.text();
if (response.status >= 200 && response.status < 300) {
let user = JSON.parse(res);
this.props.updateProfile(user.user);
this.setState({showProgress: false});
this.props.navigator.replace({name: 'Home'});
}
else {
let error = JSON.parse(res);
throw error.errors;
}
} catch(error) {
this.setState({error: error});
this.setState({showProgress: false});
console.log("error " + error);
}
}
render() {
return (
<View style={styles.loginBox}>
<TextInput
ref="username"
value={this.state.username}
placeholder="Username"
keyboardType="email-address"
onChangeText={(username) => this.setState({username}) }
onSubmitEditing={() => this._focusNextField('password')}/>
<TextInput
ref="password"
placeholder="Password"
value={this.state.password}
secureTextEntry={true}
onChangeText={(password) => this.setState({password}) }
returnKeyType="go"/>
<Button textStyle={{fontSize: 14}} onPress={this._onLoginPressed.bind(this)} style={{marginTop: 30}}>
Sign In
</Button>
</View>
);
}
}
const styles = StyleSheet.create({
loginBox: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
alignItems: 'stretch',
margin: 10,
}
});
var {updateProfile} = require('../Actions');
import { bindActionCreators } from 'redux';
import { connect } from 'react-redux';
module.exports = connect(
null,
(dispatch) => {
return bindActionCreators({updateProfile}, dispatch)
}
)(Login)
Home
class Home extends React.Component {
render() {
return (
<View style={{flex: 1, backgroundColor: '#fff'}}>
<Text style={{margin: 10, fontSize: 15, textAlign: 'left'}}>I'm in the Drawer!</Text>
<Text>Auth key : {this.props.profile ? this.props.profile.authentication_token : 'authentication_token'}</Text>
</View>
);
}
}
//module.exports = Home;
import { connect } from 'react-redux';
module.exports = connect(
(state) => {
return {
profile: state.profile
}
},
null
)(Home)

Answer 1

If you're using redux-thunk, you can delay the transition until data is loaded. You need to change some small things.
Add return to action creator.
export function updateProfile(data) {
return dispatch => {
return AsyncStorage.setItem(PROFILE_KEY, JSON.stringify(data))
.then(() => {
dispatch({
type: types.UPDATE_PROFILE,
profile: data
})
})
}
}
add await
if (response.status >= 200 && response.status < 300) {
let user = JSON.parse(res);
await this.props.updateProfile(user.user);
this.setState({showProgress: false});
this.props.navigator.replace({name: 'Home'});
}