Demo.js
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import * as React from 'react';
import {View, StyleSheet, TextInput, Text, TouchableOpacity, AsyncStorage} from 'react-native';
import Gun from 'gun/gun';
import 'gun/lib/open';
import '../extensions/sea';
import adapter from '../extensions/asyncStorageAdapter';
Gun.on('create', function(db) {
this.to.next(db);
const pluginInterop = function(middleware) {
return function(request) {
this.to.next(request);
return middleware(request, db);
};
}
// Register the adapter
db.on('get', pluginInterop(adapter.read));
db.on('put', pluginInterop(adapter.write));
});
export class Demo extends React.Component {
constructor() {
super();
this.gun = new Gun();
this.user = this.gun.user();
window.gun = this.gun;
window.user = this.user;
this.state = {
authenticated: false,
list: [],
listText: '',
username: '',
password: '',
}
}
hookUserList = () => {
this.user.get('list').open((list) => {
const userList = Object.keys(list).reduce((newList, key) => {
if (!!Object.keys(list[key]).length) {
return [...newList, {text: list[key].text, key}];
};
}, []);
this.setState({
list: userList || [],
});
});
}
addToList = () => {
this.user.get('list').set({text: this.state.listText});
}
doSignin = () => {
this.user.auth(this.state.username, this.state.password, (d) => {
if (d.err) {
console.log('err', d.err);
return;
}
this.setState({authenticated: true});
this.hookUserList();
});
}
doSignup = () => {
this.user.create(this.state.username, this.state.password, () => {
this.doSignin();
});
}
loginScreen = () => {
return (
<View style={styles.sub}>
<TextInput placeholder="username" onChangeText={(username) => this.setState({username})} value={this.state.username} style={styles.input} />
<TextInput placeholder="password" secureTextEntry={true} onChangeText={(password) => this.setState({password})} value={this.state.password} style={styles.input} />
<TouchableOpacity onPress={this.doSignin} style={styles.button}>
<Text>Sign in</Text>
</TouchableOpacity>
<TouchableOpacity onPress={this.doSignup} style={styles.button}>
<Text>Sign up</Text>
</TouchableOpacity>
</View>
)
}
userListScreen = () => {
return (
<View style={styles.sub}>
{
!!this.state.list.length && this.state.list.map((item) => <Text key={item.key}>* {item.text}</Text>)
}
<TextInput placeholder="text here" onChangeText={(listText) => this.setState({listText})} value={this.state.listText} style={styles.input} />
<TouchableOpacity onPress={this.addToList} style={styles.button}>
<Text>Add to list</Text>
</TouchableOpacity>
</View>
)
}
render() {
return (
<View style={styles.container}>
{
this.state.authenticated ?
this.userListScreen() : this.loginScreen()
}
</View>
)
}
}
const styles = StyleSheet.create({
container: {
justifyContent: 'center',
alignItems: 'center',
width: '100%',
height: '100%',
},
sub: {
height: '50%',
width: '60%',
justifyContent: 'space-between',
padding: 4,
},
button: {
backgroundColor: 'rgba(0, 0, 0, 0.3)',
borderWidth: 1,
borderRadius: 5,
alignItems: 'center',
justifyContent: 'center',
width: '100%',
height: 50,
},
input: {
borderColor: 'black',
borderWidth: 1,
borderRadius: 5,
width: '100%',
height: 50,
alignItems: 'center',
justifyContent: 'center',
paddingHorizontal: '32%',
},
});