use env vars

.gitignore

@@ -1,4 +1,3 @@
 .DS_Store
 node_modules
-transactions.json
-lib/credentials.json
+.env

index.js

@@ -1,3 +1,5 @@
+require('dotenv').config()
+
 const { fetchTransactions } = require('./lib/fetch')
 const { transformTransactionsToUpdates } = require('./lib/transform')
 const { updateSheet } = require('./lib/update')

lib/fetch.js

@@ -1,6 +1,5 @@
 const moment = require('moment')
 const client = require('./plaidClient')
-const creds = require('./credentials.json')
 
 // start from beginning of last month...
 const targetMonth = Math.max(1, moment().month() - 1)
@@ -10,7 +9,7 @@ const startDate = moment().month(targetMonth - 1).date(1).format('YYYY-MM-DD')
 // and keep current month up-to-date
 const endDate = moment().format('YYYY-MM-DD')
 
-const fetchOptions = [
+const transactionFetchOptions = [
   startDate,
   endDate,
   {
@@ -19,27 +18,42 @@ const fetchOptions = [
   }
 ]
 
+const plaidAccountTokens = Object.keys(process.env)
+  .filter(key => key.startsWith(`PLAID_TOKEN`))
+  .map(key => ({
+    account: key.replace(/^PLAID_TOKEN_/, ''),
+    token: process.env[key]
+  }))
+
 exports.fetchTransactions = async function() {
-  // fetch in parallel
-  const fetchPromises = Object.keys(creds.plaid.tokens).map(accountName => {
-    const token = creds.plaid.tokens[accountName]
-    return client.getTransactions(token, ...fetchOptions)
-      .then(res => ({
-        account: accountName,
-        transactions: res.transactions
+  const rawTransactions = await Promise.all(plaidAccountTokens.map(({ account, token }) => {
+    return client.getTransactions(token, ...transactionFetchOptions)
+      .then(({ transactions }) => ({
+        account,
+        transactions
       }))
-  })
-
-  const fetchResults = await Promise.all(fetchPromises)
+  }))
 
   // concat all transactions
-  return fetchResults.reduce((all, { account, transactions }) => {
+  return rawTransactions.reduce((all, { account, transactions }) => {
     return all.concat(transactions.map(({ name, date, amount }) => ({
-      // Simplify the format and only keep things we need.
       account,
       name,
       date,
       amount: -amount
     })))
   }, [])
 }
+
+exports.fetchBalances = async function() {
+  const rawBalances = await Promise.all(plaidAccountTokens.map(({ account, token }) => {
+    return client.getBalance(token)
+  }))
+
+  return rawBalances.reduce((all, { accounts }) => {
+    return all.concat(accounts.map(({ name, balances }) => ({
+      name,
+      balance: balances.current
+    })))
+  }, [])
+}

lib/googleClient.js

@@ -1,8 +1,7 @@
 const { google } = require('googleapis')
-const creds = require('./credentials.json')
 
 module.exports = new google.auth.OAuth2(
-  creds.sheets.client_id,
-  creds.sheets.client_secret,
-  creds.sheets.redirect_uris[0]
+  process.env.SHEETS_CLIENT_ID,
+  process.env.SHEETS_CLIENT_SECRET,
+  process.env.SHEETS_REDIRECT_URI
 )

lib/plaidClient.js

@@ -1,10 +1,9 @@
 const plaid = require('plaid')
-const creds = require('./credentials.json')
 
 module.exports = new plaid.Client(
-  creds.plaid.client_id,
-  creds.plaid.secret,
-  creds.plaid.public_key,
+  process.env.PLAID_CLIENT_ID,
+  process.env.PLAID_SECRET,
+  process.env.PLAID_PUBLIC_KEY,
   plaid.environments.development,
   {
     version: '2018-05-22'

lib/update.js

@@ -1,9 +1,14 @@
 const { google } = require('googleapis')
-const creds = require('./credentials.json')
 const moment = require('moment')
 const oAuth2Client = require('./googleClient')
 
-oAuth2Client.setCredentials(creds.sheets.token)
+oAuth2Client.setCredentials({
+  access_token: process.env.SHEETS_ACCESS_TOKEN,
+  refresh_token: process.env.SHEETS_REFRESH_TOKEN,
+  scope: process.env.SHEETS_SCOPE,
+  token_type: process.env.SHEETS_TOKEN_TYPE,
+  expiry_date: process.env.SHEETS_EXPIRY_DATE
+})
 
 const sheets = google.sheets({
   version: 'v4',
@@ -12,7 +17,7 @@ const sheets = google.sheets({
 
 exports.updateSheet = async function(updates) {
   sheets.spreadsheets.values.batchUpdate({
-    spreadsheetId: creds.sheets.sheet_id,
+    spreadsheetId: process.env.SHEETS_SHEET_ID,
     resource: {
       valueInputOption: `USER_ENTERED`,
       data: updates.map(p => ({

package.json

@@ -13,6 +13,7 @@
   },
   "dependencies": {
     "body-parser": "^1.18.3",
+    "dotenv": "^6.2.0",
     "ejs": "^2.6.1",
     "express": "^4.16.4",
     "fs-extra": "^7.0.1",

scripts/getSheetsToken.js

@@ -1,3 +1,5 @@
+require('dotenv').config()
+
 const fs = require('fs')
 const path = require('path')
 const readline = require('readline')

scripts/plaidServer.js

@@ -1,3 +1,5 @@
+require('dotenv').config()
+
 const account = process.argv[2]
 if (!account) {
   throw new Error('An account name must be provided.')
@@ -23,7 +25,7 @@ app.use(bodyParser.json())
 app.get('/', (req, res, next) => {
   res.render(path.resolve(__dirname, 'plaid.ejs'), {
     PLAID_ACCOUNT: account,
-    PLAID_PUBLIC_KEY: creds.plaid.public_key
+    PLAID_PUBLIC_KEY: process.env.PLAID_PUBLIC_KEY
   })
 })
 

scripts/testPlaid.js

@@ -1,3 +1,5 @@
+require('dotenv').config()
+
 const path = require('path')
 const { writeFile } = require('fs-extra')
 const { fetchTransactions } = require('../lib/fetch')

scripts/testSheets.js

@@ -1,3 +1,5 @@
+require('dotenv').config()
+
 const { updateSheet } = require('../lib/update')
 
 updateSheet([{

yarn.lock

@@ -196,6 +196,11 @@ destroy@~1.0.4:
   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
   integrity sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=
 
+dotenv@^6.2.0:
+  version "6.2.0"
+  resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-6.2.0.tgz#941c0410535d942c8becf28d3f357dbd9d476064"
+  integrity sha512-HygQCKUBSFl8wKQZBSemMywRWcEDNidvNbjGVyZu3nbZ8qq9ubiPoGLMdRDpfSrpkkm9BXYFkpKxxFX38o/76w==
+
 ecc-jsbn@~0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"