Node

server.js

@@ -1,3 +1,4 @@
+
 const express = require('express');
 const app = express();
 
@@ -10,18 +11,21 @@ app.use(express.json());
 const baseRouter = express.Router();
 
 baseRouter.get('/greeting', (req, res) => {
-    return res.send('');
+    res.status(200)
+    return res.send('Hello World!');
 });
 
 baseRouter.post('/add', (req, res) => {
-    res.json({ "": null });
+    res.status(200)
+    res.json({ "result":req.body.first+req.body.second});
 });
 
 
 baseRouter.post('/subtract', (req, res) => {
-    res.json({ "": null });
+    res.status(200)
+    res.json({ "result":req.body.first-req.body.second});
+
 });
-
 app.use(baseUrl, baseRouter);
 app.listen(PORT, () => {
     console.log("Server running at PORT", PORT);