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improve node.js sample code #14

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improve node.js sample code #14

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38 changes: 19 additions & 19 deletions nodejs/callback.js
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Original file line number Diff line number Diff line change
@@ -1,26 +1,26 @@
const app = new (require('express').Router)();
const app = new (require('express').Router)()

app.post('/paybear/callback/:order', (req, res) => {
if(req.body && req.params.order) {
var orderId = req.params.order;
var data = req.body;
var invoice = data.invoice;
if (req.body && req.params.order) {
// const orderId = req.params.order
const data = req.body
const invoice = data.invoice

//save data.confirmations - number of confirmations to DB
// save data.confirmations - number of confirmations to DB

if(data.confirmations >= data.maxConfirmations) {
var amountPaid = data.inTransaction.amount / Math.pow(10, data.inTransaction.exp);
//compare $amountPaid with order total
//compare $invoice with one saved in the database to ensure callback is legitimate
//mark the order as paid
res.send(invoice); //stop further callbacks
if (data.confirmations >= data.maxConfirmations) {
// const amountPaid = data.inTransaction.amount / Math.pow(10, data.inTransaction.exp)

// compare $amountPaid with order total
// compare $invoice with one saved in the database to ensure callback is legitimate
// mark the order as paid
res.send(invoice) // stop further callbacks
} else {
res.send('waiting for confirmations')
}
} else {
res.send('waiting for confirmations');
res.send('error')
}
} else {
res.send('error');
}

});
})

module.exports = app;
module.exports = app
54 changes: 27 additions & 27 deletions nodejs/currencies.js
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Original file line number Diff line number Diff line change
@@ -1,37 +1,37 @@
var getCurrency = require('./paybear').getCurrency;
var getCurrencies = require('./paybear').getCurrencies;
const app = new (require('express').Router)();
const getCurrency = require('./paybear').getCurrency
const getCurrencies = require('./paybear').getCurrencies
const app = new (require('express').Router)()

app.get('/paybear/currencies', (req, res) => {
if(req.query.order) {
var orderId = +req.query.order;
var fiatTotal = 19.99; //get from order
if (req.query.order) {
const orderId = +req.query.order
// const fiatTotal = 19.99 // get from order

var token = req.query.token;
const token = req.query.token

if(token) {
getCurrency(token, orderId, true, function (curr) {
res.json(curr); //return this data to PayBear form
});
if (token) {
getCurrency(token, orderId, true, (curr) => {
res.json(curr) // return this data to PayBear form
})
} else {
var returnCurrs = [];
getCurrencies(function(currs) {
var collectCurrencies = function (currCodes) {
if(currCodes.length === 0) {
res.json(returnCurrs);
return;
const returnCurrs = []
getCurrencies((currs) => {
const collectCurrencies = (currCodes) => {
if (currCodes.length === 0) {
res.json(returnCurrs)
return
}
getCurrency(currCodes.pop(), orderId, true, function(currency) {
returnCurrs.push(currency);
collectCurrencies(currCodes);
});
};
collectCurrencies(Object.keys(currs));
});
getCurrency(currCodes.pop(), orderId, true, (currency) => {
returnCurrs.push(currency)
collectCurrencies(currCodes)
})
}
collectCurrencies(Object.keys(currs))
})
}
} else {
res.json({error: 'send the order number'});
res.json({error: 'send the order number'})
}
});
})

module.exports = app;
module.exports = app
161 changes: 80 additions & 81 deletions nodejs/paybear.js
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Original file line number Diff line number Diff line change
@@ -1,104 +1,103 @@
var https = require('https');
const https = require('https')

var PAYBEAR_SECRET = 'secAPIKEY';
const PAYBEAR_SECRET = 'secAPIKEY'

function getAddress(orderId, token, callback) {
var callbackUrl = 'http://CHANGEME.com/payBear/callback/' + orderId;
var url = 'https://api.paybear.io/v2/' + token.toLowerCase() + '/payment/' + '?token=' + PAYBEAR_SECRET;
function getAddress (orderId, token, callback) {
// const callbackUrl = `http://CHANGEME.com/payBear/callback/${orderId}`
const url = `https://api.paybear.io/v2/${token.toLowerCase()}/payment/?token=${PAYBEAR_SECRET}`

https.get(url, function (res) {
var rawData = '';
res.on('data', function (chunk) { rawData += chunk; });
https.get(url, (res) => {
let rawData = ''
res.on('data', (chunk) => { rawData += chunk })

res.on('end', function () {
var response = JSON.parse(rawData);
res.on('end', () => {
const response = JSON.parse(rawData)
if (response.success) {
callback(response.data.address);
callback(response.data.address)
}
});
}).
on('error', function (e) {
console.error(e);
callback(null);
});
})
})
.on('error', function (e) {
console.error(e)
callback(null)
})
}

function getCurrencies(callback)
{
var currencies = null; //TODO: add cache here?

var url = 'https://api.paybear.io/v2/currencies?token=' + PAYBEAR_SECRET;

https.get(url, function (res) {
var rawData = '';
res.on('data', function (chunk) { rawData += chunk; });

res.on('end', function () {
var response = JSON.parse(rawData);
if (response.success) {
callback(response.data);
}
});
}).
on('error', function (e) {
console.error(e);
callback(null);
});
function getCurrencies (callback) {
// const currencies = null // TODO: add cache here?

const url = `https://api.paybear.io/v2/currencies?token=${PAYBEAR_SECRET}`

https.get(url, (res) => {
let rawData = ''
res.on('data', (chunk) => { rawData += chunk })

res.on('end', () => {
const response = JSON.parse(rawData)
if (response.success) {
callback(response.data)
}
})
})
.on('error', (e) => {
console.error(e)
callback(null)
})
}

function getCurrency(token, orderId, getAddr, callback) {
getRate(token, function(rate) {
function getCurrency (token, orderId, getAddr, callback) {
getRate(token, (rate) => {
if (rate) {
var fiatValue = 19.99; //get from $orderId
var coinsValue = +(fiatValue / rate).toFixed(8);
var currency = null;

getCurrencies(function(currencies) {
token = token.toLowerCase();
currency = currencies[token];
currency['coinsValue'] = coinsValue;

if (getAddr) {
getAddress(orderId, token, function(address) {
currency['address'] = address;
currency['blockExplorer'] = currency['blockExplorer'] + address;
callback(currency);
});
} else {
currency['currencyUrl'] = '/paybear/currencies?order=' + orderId + '&token=' + token;
callback(currency);
}
});

const fiatValue = 19.99 // get from $orderId
const coinsValue = +(fiatValue / rate).toFixed(8)
let currency = null

getCurrencies((currencies) => {
token = token.toLowerCase()
currency = currencies[token]
currency['coinsValue'] = coinsValue

if (getAddr) {
getAddress(orderId, token, (address) => {
currency['address'] = address
currency['blockExplorer'] = currency['blockExplorer'] + address
callback(currency)
})
} else {
currency['currencyUrl'] = `/paybear/currencies?order=${orderId}&token=${token}`
callback(currency)
}
})
}
});
})
}

function getRate(curCode, callback) {
curCode = curCode.toLowerCase();
function getRate (curCode, callback) {
curCode = curCode.toLowerCase()
getRates(function (rates) {
rates[curCode] ? callback(rates[curCode].mid) : callback(false);
});
if (rates[curCode]) callback(rates[curCode].mid)
else callback(false)
})
}

function getRates(callback) {
var url = 'https://api.paybear.io/v2/exchange/usd/rate';
function getRates (callback) {
const url = 'https://api.paybear.io/v2/exchange/usd/rate'

https.get(url, function (res) {
var rawData = '';
res.on('data', function (chunk) { rawData += chunk; });
https.get(url, (res) => {
let rawData = ''
res.on('data', (chunk) => { rawData += chunk })

res.on('end', function () {
var response = JSON.parse(rawData);
res.on('end', () => {
const response = JSON.parse(rawData)
if (response.success) {
callback(response.data);
callback(response.data)
}
});
}).
on('error', function (e) {
console.error(e);
callback(null);
});
})
})
.on('error', (e) => {
console.error(e)
callback(null)
})
}

module.exports = {
Expand All @@ -107,4 +106,4 @@ module.exports = {
getCurrencies: getCurrencies,
getRate: getRate,
getRates: getRates
};
}
26 changes: 12 additions & 14 deletions nodejs/status.js
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Original file line number Diff line number Diff line change
@@ -1,16 +1,14 @@
const app = new (require('express').Router)();
const app = new (require('express').Router)()

app.get('/paybear/status/:order', (req, res) => {
var orderId = req.params.order;
var confirmations = null;

confirmations = 0; //get from DB, see callback.php
maxConfirmations = 3; //get from DB, see callback.php
var resp = {
success: confirmations >= maxConfirmations
};
if(confirmations !== null)
resp.confirmations = confirmations;
res.json(resp); //return this data to PayBear form
});
module.exports = app;
// const orderId = req.params.order
const confirmations = 0 // get from DB, see callback.php
const maxConfirmations = 3 // get from DB, see callback.php
const resp = {
success: confirmations >= maxConfirmations
}
if (confirmations !== null) { resp.confirmations = confirmations }
res.json(resp) // return this data to PayBear form
})

module.exports = app