Deploying a Full-Stack JAMstack App with the cloud provider and Netlify

				
					[label my-jamstack-app/functions/connectMongo.js]
// Importing the MongoClient class from the mongodb package
const { MongoClient } = require("mongodb");

// Defining the serverless function
exports.handler = async function (event) {
 // Creating a new MongoClient instance with the MongoDB URL from the environment variables
 const client = new MongoClient(process.env.MONGODB_URL);
 try {
 // Connecting to the MongoDB server
 await client.connect();
 // Accessing the "mydatabase" database
 const db = client.db("mydatabase");
 // Accessing the "items" collection
 const collection = db.collection("items");

 // Handling GET requests
 if (event.httpMethod === "GET") {
 // Fetching all items from the collection and converting the result to an array
 const data = await collection.find({}).toArray();
 // Returning a 200 status code and the fetched data
 return {
 statusCode: 200,
 body: JSON.stringify(data)
 };
 }

 // Handling POST requests
 if (event.httpMethod === "POST") {
 // Parsing the request body to get the new item
 const newItem = JSON.parse(event.body);
 // Inserting the new item into the collection
 await collection.insertOne(newItem);
 // Returning a 201 status code and a success message
 return {
 statusCode: 201,
 body: JSON.stringify({ message: "Item added successfully" })
 };
 }

 // Handling other HTTP methods
 return {
 statusCode: 405,
 body: JSON.stringify({ error: "Method Not Allowed" })
 };
 } catch (error) {
 // Handling any errors that occur during the execution of the function
 return {
 statusCode: 500,
 body: JSON.stringify({ error: error.message })
 };
 } finally {
 // Closing the MongoDB client connection
 await client.close();
 }
};