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server.js
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server.js
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const fastify = require('fastify')({ logger: true })
const Starling = require('starling-developer-sdk')
const ics = require('ics')
const dayjs = require('dayjs')
const utc = require('dayjs/plugin/utc')
dayjs.extend(utc)
const getSymbolFromCurrency = require('currency-symbol-map')
fastify.addHook('preHandler', async (req, reply) => {
const isHttps = ((req.headers['x-forwarded-proto'] || '').substring(0, 5) === 'https')
if (isHttps) {
return
}
const { method, url } = req.req
if (method && ['GET', 'HEAD'].includes(method)) {
const host = req.headers.host || req.hostname
reply.redirect(301, `https://${host}${url}`)
}
})
fastify.get('/', async (request, reply) => {
if (!request.query.personalToken) return reply.code(401).send('Error! Please provide an API key.')
const client = new Starling({
accessToken: request.query.personalToken
})
const accountQuery = await client.account.getAccounts()
const account = accountQuery.data.accounts[0]
const payeesQuery = await client.payee.getPayees() || []
let payees = []
payeesQuery.data.payees.map(i => {
payees[i.payeeUid] = i.payeeName
})
const standingOrdersQuery = await client.payment.listStandingOrders({
accountUid: account.accountUid,
categoryUid: account.defaultCategory
}) || []
const standingOrdersDates = standingOrdersQuery.data.standingOrders
.filter(i => !i.cancelledAt && i.standingOrderRecurrence)
.map(i => formatEvent({
uid: i.paymentOrderUid,
name: payees[i.payeeUid],
timestamp: i.standingOrderRecurrence.startDate,
amount: i.amount,
reference: i.reference,
recurrenceRule: i.standingOrderRecurrence
}, 'SO'))
const directDebitsQuery = await client.mandate.listMandates() || []
const directDebitsDates = directDebitsQuery.data.mandates
.filter(i => !i.cancelled && i.lastPayment)
.map(i => formatEvent({
uid: i.uid,
name: i.originatorName,
timestamp: i.lastPayment.lastDate,
amount: i.lastPayment.lastAmount,
reference: i.reference
}, 'DD_SETTLED'))
const directDebitsUpcomingQuery = await client.feedItem.getFeedItemsBetween({
accountUid: account.accountUid,
categoryUid: account.defaultCategory,
minTransactionTimestamp: dayjs().toISOString(),
maxTransactionTimestamp: dayjs().add(10, 'day').toISOString()
}) || []
const directDebitsUpcomingDates = directDebitsUpcomingQuery.data.feedItems
.filter(i => i.source === 'DIRECT_DEBIT' && i.status === 'UPCOMING')
.map(i => formatEvent({
uid: i.feedItemUid,
name: i.counterPartyName,
timestamp: i.transactionTime,
amount: i.amount,
reference: i.reference
}, 'DD_UPCOMING'))
return ics.createEvents([
...directDebitsDates,
...directDebitsUpcomingDates,
...standingOrdersDates
]).value
})
const formatEvent = (event, type) => {
let dateObj = dayjs(event.timestamp).utc()
let eventType = {
'SO': 'Standing Order',
'DD_UPCOMING': 'Upcoming Direct Debit',
'DD_SETTLED': 'Settled Direct Debit'
}
let icsObj = {
productId: "StarlingCalendar",
uid: event.uid,
start: dateObj.local().format('YYYY, MM, DD').split(','),
end: dateObj.local().add(1, 'day').format('YYYY, MM, DD').split(','),
title: `${event.name} ${formatAmount(event.amount)}`,
description: `Ref: ${event.reference} (${eventType[type]})`
}
if (event.recurrenceRule) icsObj.recurrenceRule = getRrule(event.recurrenceRule)
return icsObj
}
const getRrule = r => {
let rule = []
if (r.frequency) rule.push(`FREQ=${r.frequency}`)
if (r.count) rule.push(`COUNT=${r.count}`)
if (r.interval) rule.push(`INTERVAL=${r.interval}`)
return rule.join(';')
}
const formatAmount = amount => {
return `(${getSymbolFromCurrency(amount.currency) + (amount.minorUnits / 100).toFixed(2)})`
}
const start = async () => {
try {
await fastify.listen(process.env.PORT, '0.0.0.0')
} catch (err) {
fastify.log.error(err)
process.exit(1)
}
}
start()