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AccountBalancePage.js
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AccountBalancePage.js
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/**
* PureMoney POS - AccountBalancePage
* https://github.com/facebook/react-native
* @flow
*/
'use strict';
import React, { Component } from 'react';
import {
StyleSheet,
Text,
View,
} from 'react-native';
var vendorAddress = '0xaac6e508b9e87d878624f7932d0d5a0977b11fc3';
var apiKey = 'BT7RSI4PJYFZAA145SZBH1HMH7J2WM5PUJ';
function urlForQueryAndPage(key, value) {
const data = {
module: 'account',
action: 'balance',
tag: 'latest',
apikey: {apiKey},
};
data[key] = value;
const querystring = Object.keys(data)
.map(key => key + '=' + encodeURIComponent(data[key]))
.join('&');
return 'https://ropsten.etherscan.io/api?' + querystring;
}
function convertToETH(val) {
var result = parseInt(val) / 1000000000000000000;
return result;
}
function convertExchangeRate(val, rate) {
var res = (val * rate).toFixed(2);
return res;
}
export default class AccountBalancePage extends Component {
constructor(props) {
super(props);
this.state = {
ethValue: '0',
ethToUsdExRate: 302.26, //TODO: Get the live eth to usd rate
};
}
componentDidMount() {
console.log('component mounted!');
const query = urlForQueryAndPage('address', vendorAddress);
console.log('query run: ' + query);
fetch(query)
.then((response) => response.json())
.then((responseJson) => {
console.log('from API: ' + responseJson.result);
this.setState({
ethValue: convertToETH(responseJson.result),
}, function() {
// do something with new state
});
})
.catch(function(error) {
console.log('error encountered: ' + error);
});
}
render() {
return (
<View style={styles.container}>
<Text style={styles.description}>
Account Balance
</Text>
<Text style={styles.textItem}>
{vendorAddress}
</Text>
<Text style={styles.moneyItem}>
Ξ {this.state.ethValue} ETH
</Text>
<Text style={styles.fiatItem}>
$ {convertExchangeRate(this.state.ethValue, this.state.ethToUsdExRate)} USD
</Text>
</View>
);
}
}
const styles = StyleSheet.create({
description: {
marginBottom: 40,
fontSize: 18,
textAlign: 'left',
color: '#434343'
},
textItem: {
marginBottom: 10,
fontSize: 12,
textAlign: 'left',
color: '#434343'
},
moneyItem: {
marginTop: 30,
fontSize: 30,
textAlign: 'left',
color: 'teal',
},
fiatItem: {
marginBottom: 10,
fontSize: 15,
textAlign: 'left',
color: '#434343',
},
container: {
padding: 30,
marginTop: 40,
marginBottom: 50,
alignItems: 'center'
},
});