Merge branch 'main' into 'master'

Initial commit: api creation get and post

See merge request !1

.gitignore

+/node_modules
\ No newline at end of file

API-Endpoints.txt

+Express.js API Endpoints
+
+GET API
+
+URL: http://localhost:3000/info/:pathParam?queryParam=value
+
+Method: GET
+
+Description: Returns both query parameter and path parameter as JSON.
+
+Example: http://localhost:3000/info/123?queryParam=hello
+ 
+expected response:
+{
+  "message": "GET API Response",
+  "pathParam": "123",
+  "queryParam": "hello"
+}
+
+-----------------------------------------------------------------------------
+
+POST API
+
+URL: http://localhost:3000/data
+
+Method: POST
+
+Description: Accepts JSON data in the request body and returns an array of data.
+
+Headers: Content-Type: application/json
+
+Post Data (request body json):
+{
+    "name": "Vijay",
+    "age": 25
+}
+
+expected response:
+{
+    "message": "POST API Response",
+    "data": [
+        {
+            "name": "Vijay",
+            "age": 25
+        }
+    ]
+}
\ No newline at end of file

package.json

+{
+  "name": "my-express",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.21.2"
+  }
+}

server.js

+const express = require('express');
+const app = express();
+const port = 3000;
+
+app.use(express.json());
+
+app.listen(port, () => {
+    console.log(`Server is running on http://localhost:${port}`);
+});
+
+
+// GET API with query and path parameters
+app.get('/info/:pathParam', (req, res) => {
+    const pathParam = req.params.pathParam;
+    const queryParam = req.query.queryParam; 
+
+    res.json({
+        message: "GET API Response",
+        pathParam: pathParam,
+        queryParam: queryParam || "No query param provided"
+    });
+});
+
+// POST API that accepts JSON data and returns an array
+app.post('/data', (req, res) => {
+    const inputData = req.body; 
+
+    if (!inputData || Object.keys(inputData).length === 0) {
+        return res.status(400).json({ message: "No data provided" });
+    }
+
+    const responseArray = Array.isArray(inputData) ? inputData : [inputData];
+
+    res.json({
+        message: "POST API Response",
+        data: responseArray
+    });
+});
+