express initialized with demo endpoint

backend/api/src/app.ts

@@ -0,0 +1,31 @@
+import express from 'express';
+import bodyParser from "body-parser";
+import pgPromise from "pg-promise";
+const pgp = pgPromise({});
+const db = pgp('postgres://postgres:postgres@localhost:5432/rr')
+const app = express()
+const port = 3000
+
+app.use(bodyParser.json())
+
+app.get('/test', (req, res) => {
+    res.send(JSON.stringify({success: true}))
+})
+
+app.post('/highscore', async (req, res) => {
+    if (req.body !== undefined) {
+        let data = await db.any(
+            'SELECT * FROM lb_highscore LIMIT $1 OFFSET $2',
+            [req.body.itemsPerPage, req.body.itemsPerPage * (req.body.page - 1)]
+        )
+        res.send(data)
+    } else {
+        res.status(400)
+        res.send("itemsPerPage and/or page not defined")
+    }
+
+})
+
+app.listen(port, () => {
+    console.log(`Example app listening on port ${port}`)
+})