Add port and listen to server

Author: RihannaP

package.json

@@ -4,6 +4,7 @@
   },
   "name": "module-decomposition",
   "version": "1.0.0",
+  "type": "module",
   "description": "Exercises to practice and solidify your understanding of the Decomposition module of the Software Development Course.",
   "main": "script.js",
   "scripts": {
@@ -19,5 +20,6 @@
   "bugs": {
     "url": "https://github.com/RihannaP/Module-Decomposition/issues"
   },
-  "homepage": "https://github.com/RihannaP/Module-Decomposition#readme"
+  "homepage": "https://github.com/RihannaP/Module-Decomposition#readme",
+  "devDependencies": {}
 }

script.js

@@ -1,6 +1,8 @@
 import express from "express"
 const app = express();
-const port = 3000;
+
+app.use(express.json());
+
 
 function usernameExtractor(req, res, next) {
   const username = req.get("X-Username");
@@ -41,4 +43,9 @@ app.post("/", usernameExtractor,(req, res) => {
   }
 
   res.send(response);
+});
+
+const PORT = 3000;
+app.listen(PORT, () => {
+  console.log(`Server running on http://localhost:${PORT}`);
 });