feat: connect the project to the database

hello_world/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "dev": "nodemon server.js",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "body-parser": "^1.20.3",
+    "cors": "^2.8.5",
+    "express": "^4.21.0",
+    "mongodb": "^6.9.0",
+    "mongoose": "^8.6.2"
+  },
+  "devDependencies": {
+    "nodemon": "^3.1.4"
+  }
+}

hello_world/server.js

@@ -0,0 +1,42 @@
+const { MongoClient } = require('mongodb');
+
+const url = 'mongodb://localhost:27017/mongo';
+
+const client = new MongoClient(url);
+
+async function addCurrentDate(db) {
+    try {
+        const currentDate = new Date();
+        const collection = db.collection('dates');
+        const result = await collection.insertOne({ date: currentDate });
+        console.log('Date inserted:', result.insertedId);
+    } catch (error) {
+        console.error('Error inserting date:', error);
+    }
+}
+
+async function getAllDates(db) {
+    try {
+        const collection = db.collection('dates');
+        return await collection.find().toArray();
+    } catch (error) {
+        console.error('Error fetching dates:', error);
+        throw error;
+    }
+}
+
+async function main() {
+    try {
+        await client.connect();
+        const db = await client.db()
+        await addCurrentDate(db);
+        const dates = await getAllDates(db);
+        console.log('Dates found:', dates);
+    } catch (error) {
+        console.error('Error:', error);
+    } finally {
+        await client.close();
+    }
+}
+
+main().catch(console.error);