Task done form created successfully

.env

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+PORT=8888
+apiKey= "AIzaSyA0hA2Bc74PEzeuoahNApERIEkxFqv_jSo"
+    authDomain= "techteamexpansion23.firebaseapp.com"
+    projectId= "techteamexpansion23"
+    storageBucket= "techteamexpansion23.appspot.com"
+    messagingSenderId= "542718392377"
+    appId= "1:542718392377:web:bf6178e1b28494fe8c35e8"
+    measurementId= "G-39B1R2EWV2"

.gitignore

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+node_modules

app.js

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+// Get form elements
+require('dotenv').config();
+const express = require("express");
+const ap = express();
+const path = require('path');
+const serverless=require('serverless-http');
+const formPath = path.join(__dirname, "./dist/index.html");
+const router = express.Router();
+const bodyParser = require("body-parser");
+ap.use(bodyParser.urlencoded({ extended: true }));
+
+// Import the functions you need from the SDKs you need
+const { initializeApp } = require("firebase/app");
+const { getFirestore } = require("firebase/firestore");
+
+// Your web app's Firebase configuration
+// For Firebase JS SDK v7.20.0 and later, measurementId is optional
+const firebaseConfig = {
+    apiKey: process.env.apiKey,
+    authDomain: process.env.authDomain,
+    projectId: process.env.projectId,
+    storageBucket: process.env.storageBucket,
+    messagingSenderId: process.env.messagingSenderId,
+    appId: process.env.appId,
+    measurementId: process.env.measurementId
+  };
+// const firebaseConfig = {
+//   apiKey: "AIzaSyBsVanbUf_Hpm5ddTYjtDIz0cP9UJsy7m8",
+//   authDomain: "param-form.firebaseapp.com",
+//   projectId: "param-form",
+//   storageBucket: "param-form.appspot.com",
+//   messagingSenderId: "3807808558",
+//   appId: "1:3807808558:web:4ef425ce1d22d7291e23bf",
+//   measurementId: "G-TFRJPTF46G"
+//   };
+// Initialize Firebase
+const app = initializeApp(firebaseConfig);
+
+// Assuming you have already initialized the Firebase app (app) as shown in the previous code snippet
+
+// Get a reference to the Firestore database
+const db = getFirestore(app);
+
+// Email validation function
+function validateEmail(email) {
+  // Regular expression for email validation
+  const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
+  return emailRegex.test(email);
+}
+
+// Phone number validation function
+function validatePhone(phone) {
+  // Regular expression for phone number validation (10 digits only)
+  const phoneRegex = /^\d{10}$/;
+  return phoneRegex.test(phone);
+}
+router.get("/",function(req,res){
+    res.sendFile(formPath);
+   });
+router.post("/", async function (req, res) {
+  // Get the values of name, branch, email, and phone inputs from the request body
+  const name = req.body.name;
+  const branch = req.body.password;
+  const email = req.body.email;
+  const phone = req.body.phone;
+
+  if (!name || !branch || !email || !phone) {
+    res.status(400).send("<script>alert('All fields are required, navigating you back to the form (click OK).');window.history.back();</script>");
+    return;
+  }
+  // Validate email
+  if (!validateEmail(email)) {
+    res.status(400).send("<script>alert('Please enter a valid email address, navigating you back to the form (click OK).');window.history.back();</script>");
+    return;
+}
+
+// Validate phone number
+if (!validatePhone(phone)) {
+    res.status(400).send("<script>alert('Please enter a valid 10-digit phone number, navigating you back to the form (click OK).');window.history.back();</script>");
+    return;
+}
+
+
+  // If both email and phone are valid, continue with form submission
+  // You can add your code here to submit the form data to Firebase Firestore
+  // For example, you can use the "addDoc" function from Firebase SDK
+
+  // Specify the name of the new collection
+  const collectionName = "ParamCivil";
+  const { collection, addDoc } = require("firebase/firestore");
+
+  try {
+    const docRef = await addDoc(collection(db, collectionName), {
+      Fullname: name,
+      Branch: branch,
+      Email: email,
+      Phone: phone,
+    });
+    console.log("Document written with ID: ", docRef.id);
+    res.send("<script>alert('Document added with ID: " + docRef.id + "');window.history.back();</script>");
+  } catch (e) {
+    console.error("Error adding document: ", e);
+    res.status(500).send("<script>alert('Error adding document');window.history.back();</script>");
+  }
+});
+ap.use("/", router);
+ap.listen(process.env.PORT||3000,function(){
+  console.log("Server up on port 3000");
+});
+// ap.use(`/.netlify/functions/api`, router);
+// module.exports = ap;
+// module.exports.handler = serverless(ap);