feat: csv export

routes.ts

@@ -1,7 +1,29 @@
 import * as actual from './actual';
+import { q, runQuery } from '@actual-app/api';
 import express from 'express';
 const router = express.Router();
 
+const transactionsQuery = q('transactions').select([
+  '*',
+  'account.closed',
+  'account.name',
+  'account.offbudget',
+  'category.name',
+  'category.is_income',
+  'payee.name',
+  'schedule.name',
+]);
+
+const formatHandler: express.RequestHandler = (req, res) => {
+  const format = req.query['format'] === 'csv' ? 'csv' : 'json';
+  if (format === 'csv') {
+    const data = jsonToCSV(res.locals.data);
+    res.status(200).header('Content-Type', 'text/csv').send(data);
+  } else if (format === 'json') {
+    res.status(200).json(res.locals.data);
+  }
+};
+
 router.get('/budget/:month', async (req, res) => {
   const budget = await actual.getBudgetAtMonth(req.params.month);
   res.status(200).json(budget);
@@ -12,15 +34,40 @@ router.get('/accounts', async (_, res) => {
   res.status(200).json(accounts);
 });
 
-router.get('/accounts/:accountid/transactions', async (req, res) => {
-  const transactions = await actual.getTransactions(req.params.accountid);
-  res.status(200).json(transactions);
-});
+router.get(
+  '/accounts/:accountid/transactions',
+  async (req, res, next) => {
+    const { data } = await runQuery(
+      transactionsQuery.filter({ account: req.params.accountid }),
+    );
+    res.locals.data = data;
+    next();
+  },
+  formatHandler,
+);
 
-router.get('/transactions', async (req, res) => {
-  const offbudget = req.query['offbudget'] === 'true';
-  const transactions = await actual.getAllTransactions(offbudget);
-  res.status(200).json(transactions);
-});
+router.get(
+  '/transactions',
+  async (_, res, next) => {
+    const { data } = await runQuery(transactionsQuery);
+    res.locals.data = data;
+    next();
+  },
+  formatHandler,
+);
 
 export { router };
+
+function jsonToCSV(data: any) {
+  let csv = '';
+  csv += Object.keys(data?.[0]).join(',') + '\n';
+
+  for (const row of data) {
+    csv += Object.values(row)
+      .map((v) => JSON.stringify(v))
+      .join(',');
+    csv += '\n';
+  }
+
+  return csv;
+}