First registering code

backend/apis/nodejs/api.js

@@ -12,11 +12,14 @@
 */
 
 const express = require('express');
+const cors = require('cors');
 const api_controller = require('./api_controller.js');
 require('dotenv').config();
 
 const app = express();
 app.use(express.json()); // Middleware which parses JSON for POST requests
+// Enable CORS for all routes
+app.use(cors());
 app.post('/blinkapi/register', api_controller.registerPerson); // Register a Person
 app.post('/blinkapi/login', api_controller.login); // Login
 app.get('/blinkapi/person/:id', api_controller.verifyToken, api_controller.getPerson); // Obtain Person's details