From d9223bd66bb99470d90344256b41a07207231813 Mon Sep 17 00:00:00 2001
From: harish-pasupuleti <harishpasupuleti18@gmail.com>
Date: Fri, 1 Aug 2025 01:06:55 +0530
Subject: [PATCH 1/3] feature: added full backend functionality for Sign-Up and
 Sign-In with JWT

---
 .env.sample                            |   1 +
 Backend/.env                           |   3 +
 Backend/.env.sample                    |   3 +
 Backend/index.js                       |  29 +++
 Backend/middleware/auth.js             |  15 ++
 Backend/models/Goal.js                 |  66 ++++++
 Backend/models/Transaction.js          |  48 ++++
 Backend/models/User.js                 |  20 ++
 {server => Backend}/package-lock.json  | 290 +++++++++++++----------
 {server => Backend}/package.json       |  16 +-
 Backend/routes/auth.js                 |  38 ++++
 Backend/routes/goals.js                | 145 ++++++++++++
 Backend/routes/transactions.js         | 146 ++++++++++++
 server/.env.sample                     |   8 -
 server/.gitignore                      | 120 ----------
 server/app.js                          |  20 --
 server/controllers/user.controllers.js | 147 ------------
 server/db/index.js                     |  16 --
 server/index.js                        |  20 --
 server/middlewares/auth.middleware.js  |  32 ---
 server/models/user.models.js           |  67 ------
 server/routers/user.routers.js         |  17 --
 server/utils/ApiError.js               |  29 ---
 server/utils/ApiResponse.js            |  10 -
 server/utils/asyncHandler.js           |   8 -
 src/components/AuthModal.jsx           | 155 +++++++++++++
 src/components/Dashboard.jsx           |  52 +++--
 src/components/HomePage.jsx            | 131 +++++------
 src/components/TransactionContext.jsx  | 304 +++++++++++++++++++++----
 29 files changed, 1201 insertions(+), 755 deletions(-)
 create mode 100644 .env.sample
 create mode 100644 Backend/.env
 create mode 100644 Backend/.env.sample
 create mode 100644 Backend/index.js
 create mode 100644 Backend/middleware/auth.js
 create mode 100644 Backend/models/Goal.js
 create mode 100644 Backend/models/Transaction.js
 create mode 100644 Backend/models/User.js
 rename {server => Backend}/package-lock.json (90%)
 rename {server => Backend}/package.json (57%)
 create mode 100644 Backend/routes/auth.js
 create mode 100644 Backend/routes/goals.js
 create mode 100644 Backend/routes/transactions.js
 delete mode 100644 server/.env.sample
 delete mode 100644 server/.gitignore
 delete mode 100644 server/app.js
 delete mode 100644 server/controllers/user.controllers.js
 delete mode 100644 server/db/index.js
 delete mode 100644 server/index.js
 delete mode 100644 server/middlewares/auth.middleware.js
 delete mode 100644 server/models/user.models.js
 delete mode 100644 server/routers/user.routers.js
 delete mode 100644 server/utils/ApiError.js
 delete mode 100644 server/utils/ApiResponse.js
 delete mode 100644 server/utils/asyncHandler.js
 create mode 100644 src/components/AuthModal.jsx

diff --git a/.env.sample b/.env.sample
new file mode 100644
index 0000000..36c235c
--- /dev/null
+++ b/.env.sample
@@ -0,0 +1 @@
+VITE_API_URL= # Base URL for your API, e.g., http://localhost:5000/api
\ No newline at end of file
diff --git a/Backend/.env b/Backend/.env
new file mode 100644
index 0000000..2f03c1c
--- /dev/null
+++ b/Backend/.env
@@ -0,0 +1,3 @@
+MONGODB_URL="mongodb+srv://harishpasupuleti18:dltvMaOlYvh7iEwd@cluster0.k21edhb.mongodb.net/?retryWrites=true&w=majority&appName=Cluster0"
+JWT_SECRET=123
+Frontend_URL=http://localhost:5173
\ No newline at end of file
diff --git a/Backend/.env.sample b/Backend/.env.sample
new file mode 100644
index 0000000..d7ca2e3
--- /dev/null
+++ b/Backend/.env.sample
@@ -0,0 +1,3 @@
+MONGODB_URL="" # Your MongoDB connection instance.JWT_SECRET=123
+JWT_SECRET= # Your JWT secret key
+Frontend_URL= # URL of your frontend application, e.g., http://localhost:5173
\ No newline at end of file
diff --git a/Backend/index.js b/Backend/index.js
new file mode 100644
index 0000000..a7deeed
--- /dev/null
+++ b/Backend/index.js
@@ -0,0 +1,29 @@
+const express = require('express');
+const mongoose = require('mongoose');
+const dotenv = require('dotenv');
+const goals = require('./routes/goals');
+const transactions = require('./routes/transactions.js');
+const cors = require('cors');
+const { urlencoded } = require('express');
+dotenv.config();
+
+
+const app = express();
+app.use(express.json());
+app.use(cors({
+  origin: process.env.FRONTEND_URL,
+  credentials: true,
+}));
+app.use(urlencoded({ extended: true }));
+
+
+mongoose.connect(process.env.MONGODB_URL)
+  .then(() => console.log('MongoDB connected'))
+  .catch(err => console.error(err));
+
+app.use('/api/auth', require('./routes/auth'));
+app.use('/api/goals', goals);
+app.use('/api/transactions', transactions);
+
+const PORT = process.env.PORT || 5000;
+app.listen(PORT, () => console.log(`Server running on port ${PORT}`));
diff --git a/Backend/middleware/auth.js b/Backend/middleware/auth.js
new file mode 100644
index 0000000..b614501
--- /dev/null
+++ b/Backend/middleware/auth.js
@@ -0,0 +1,15 @@
+const jwt = require('jsonwebtoken');
+const User = require('../models/User.js');
+
+module.exports = async (req, res, next) => {
+  const token = req.header('Authorization')?.split(' ')[1];
+  if (!token) return res.status(401).json({ msg: 'No token, authorization denied' });
+
+  try {
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+    req.user = await User.findById(decoded.id).select('-password');
+    next();
+  } catch (err) {
+    res.status(401).json({ msg: 'Token is not valid' });
+  }
+};
diff --git a/Backend/models/Goal.js b/Backend/models/Goal.js
new file mode 100644
index 0000000..5bfc45a
--- /dev/null
+++ b/Backend/models/Goal.js
@@ -0,0 +1,66 @@
+const mongoose = require('mongoose');
+
+const goalSchema = new mongoose.Schema({
+  userId: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'User',
+    required: true
+  },
+  name: {
+    type: String,
+    required: true,
+    trim: true,
+    maxlength: 100
+  },
+  targetAmount: {
+    type: Number,
+    required: true,
+    min: 0.01
+  },
+  currentAmount: {
+    type: Number,
+    default: 0,
+    min: 0
+  },
+  isCompleted: {
+    type: Boolean,
+    default: false
+  },
+  completedAt: {
+    type: Date,
+    default: null
+  }
+}, {
+  timestamps: true
+});
+
+// Virtual to calculate progress percentage
+goalSchema.virtual('progressPercentage').get(function() {
+  return Math.min((this.currentAmount / this.targetAmount) * 100, 100);
+});
+
+// Virtual to calculate remaining amount
+goalSchema.virtual('remainingAmount').get(function() {
+  return Math.max(this.targetAmount - this.currentAmount, 0);
+});
+
+// Middleware to update completion status
+goalSchema.pre('save', function(next) {
+  if (this.currentAmount >= this.targetAmount && !this.isCompleted) {
+    this.isCompleted = true;
+    this.completedAt = new Date();
+  } else if (this.currentAmount < this.targetAmount && this.isCompleted) {
+    this.isCompleted = false;
+    this.completedAt = null;
+  }
+  next();
+});
+
+// Include virtuals when converting to JSON
+goalSchema.set('toJSON', { virtuals: true });
+goalSchema.set('toObject', { virtuals: true });
+
+// Index for better query performance
+goalSchema.index({ userId: 1, createdAt: -1 });
+
+module.exports = mongoose.model('Goal', goalSchema);
\ No newline at end of file
diff --git a/Backend/models/Transaction.js b/Backend/models/Transaction.js
new file mode 100644
index 0000000..d32f08b
--- /dev/null
+++ b/Backend/models/Transaction.js
@@ -0,0 +1,48 @@
+// models/Transaction.js
+const mongoose = require('mongoose');
+
+const transactionSchema = new mongoose.Schema({
+  userId: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'User',
+    required: true
+  },
+  amount: {
+    type: Number,
+    required: true,
+    min: 0
+  },
+  category: {
+    type: String,
+    required: true,
+    trim: true
+  },
+  type: {
+    type: String,
+    required: true,
+    enum: ['Income', 'Expense']
+  },
+  date: {
+    type: Date,
+    required: true,
+    default: Date.now
+  },
+  note: {
+    type: String,
+    trim: true,
+    default: ''
+  },
+  goalId: {
+    type: mongoose.Schema.Types.ObjectId,
+    ref: 'Goal',
+    default: null
+  }
+}, {
+  timestamps: true
+});
+
+// Index for better query performance
+transactionSchema.index({ userId: 1, date: -1 });
+transactionSchema.index({ userId: 1, goalId: 1 });
+
+module.exports = mongoose.model('Transaction', transactionSchema);
\ No newline at end of file
diff --git a/Backend/models/User.js b/Backend/models/User.js
new file mode 100644
index 0000000..f67a8f7
--- /dev/null
+++ b/Backend/models/User.js
@@ -0,0 +1,20 @@
+const mongoose = require('mongoose');
+const bcrypt = require('bcryptjs');
+
+const UserSchema = new mongoose.Schema({
+  name: String,
+  email: { type: String, required: true, unique: true },
+  password: { type: String, required: true }
+});
+
+UserSchema.pre('save', async function(next) {
+  if (!this.isModified('password')) return next();
+  this.password = await bcrypt.hash(this.password, 10);
+  next();
+});
+
+UserSchema.methods.comparePassword = async function(password) {
+  return await bcrypt.compare(password, this.password);
+};
+
+module.exports = mongoose.model('User', UserSchema);
diff --git a/server/package-lock.json b/Backend/package-lock.json
similarity index 90%
rename from server/package-lock.json
rename to Backend/package-lock.json
index 9a6b924..870622a 100644
--- a/server/package-lock.json
+++ b/Backend/package-lock.json
@@ -1,23 +1,20 @@
 {
-  "name": "server",
+  "name": "backend",
   "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "server",
+      "name": "backend",
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
-        "bcrypt": "^6.0.0",
-        "cookie-parser": "^1.4.7",
+        "bcryptjs": "^3.0.2",
         "cors": "^2.8.5",
-        "dotenv": "^17.2.0",
+        "dotenv": "^17.2.1",
         "express": "^5.1.0",
         "jsonwebtoken": "^9.0.2",
-        "mongoose": "^8.16.4"
-      },
-      "devDependencies": {
+        "mongoose": "^8.17.0",
         "nodemon": "^3.1.10"
       }
     },
@@ -25,6 +22,7 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/@mongodb-js/saslprep/-/saslprep-1.3.0.tgz",
       "integrity": "sha512-zlayKCsIjYb7/IdfqxorK5+xUMyi4vOKcFy10wKJYc63NSdKI8mNME+uJqfatkPmOSMMUiojrL58IePKBm3gvQ==",
+      "license": "MIT",
       "dependencies": {
         "sparse-bitfield": "^3.0.3"
       }
@@ -32,12 +30,14 @@
     "node_modules/@types/webidl-conversions": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz",
-      "integrity": "sha512-CiJJvcRtIgzadHCYXw7dqEnMNRjhGZlYK05Mj9OyktqV8uVT8fD2BFOB7S1uwBE3Kj2Z+4UyPmFw/Ixgw/LAlA=="
+      "integrity": "sha512-CiJJvcRtIgzadHCYXw7dqEnMNRjhGZlYK05Mj9OyktqV8uVT8fD2BFOB7S1uwBE3Kj2Z+4UyPmFw/Ixgw/LAlA==",
+      "license": "MIT"
     },
     "node_modules/@types/whatwg-url": {
       "version": "11.0.5",
       "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-11.0.5.tgz",
       "integrity": "sha512-coYR071JRaHa+xoEvvYqvnIHaVqaYrLPbsufM9BF63HkwI5Lgmy2QR8Q5K/lYDYo5AK82wOvSOS0UsLTpTG7uQ==",
+      "license": "MIT",
       "dependencies": {
         "@types/webidl-conversions": "*"
       }
@@ -46,6 +46,7 @@
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
       "integrity": "sha512-5cvg6CtKwfgdmVqY1WIiXKc3Q1bkRqGLi+2W/6ao+6Y7gu/RCwRuAhGEzh5B4KlszSuTLgZYuqFqo5bImjNKng==",
+      "license": "MIT",
       "dependencies": {
         "mime-types": "^3.0.0",
         "negotiator": "^1.0.0"
@@ -58,7 +59,7 @@
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
       "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==",
-      "dev": true,
+      "license": "ISC",
       "dependencies": {
         "normalize-path": "^3.0.0",
         "picomatch": "^2.0.4"
@@ -71,26 +72,22 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
       "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
-      "dev": true
+      "license": "MIT"
     },
-    "node_modules/bcrypt": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-6.0.0.tgz",
-      "integrity": "sha512-cU8v/EGSrnH+HnxV2z0J7/blxH8gq7Xh2JFT6Aroax7UohdmiJJlxApMxtKfuI7z68NvvVcmR78k2LbT6efhRg==",
-      "hasInstallScript": true,
-      "dependencies": {
-        "node-addon-api": "^8.3.0",
-        "node-gyp-build": "^4.8.4"
-      },
-      "engines": {
-        "node": ">= 18"
+    "node_modules/bcryptjs": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-3.0.2.tgz",
+      "integrity": "sha512-k38b3XOZKv60C4E2hVsXTolJWfkGRMbILBIe2IBITXciy5bOsTKot5kDrf3ZfufQtQOUN5mXceUEpU1rTl9Uog==",
+      "license": "BSD-3-Clause",
+      "bin": {
+        "bcrypt": "bin/bcrypt"
       }
     },
     "node_modules/binary-extensions": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
       "integrity": "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw==",
-      "dev": true,
+      "license": "MIT",
       "engines": {
         "node": ">=8"
       },
@@ -102,6 +99,7 @@
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz",
       "integrity": "sha512-02qvAaxv8tp7fBa/mw1ga98OGm+eCbqzJOKoRt70sLmfEEi+jyBYVTDGfCL/k06/4EMk/z01gCe7HoCH/f2LTg==",
+      "license": "MIT",
       "dependencies": {
         "bytes": "^3.1.2",
         "content-type": "^1.0.5",
@@ -121,7 +119,7 @@
       "version": "1.1.12",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
       "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
-      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -131,7 +129,7 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
       "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
-      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "fill-range": "^7.1.1"
       },
@@ -143,6 +141,7 @@
       "version": "6.10.4",
       "resolved": "https://registry.npmjs.org/bson/-/bson-6.10.4.tgz",
       "integrity": "sha512-WIsKqkSC0ABoBJuT1LEX+2HEvNmNKKgnTAyd0fL8qzK4SH2i9NXg+t08YtdZp/V9IZ33cxe3iV4yM0qg8lMQng==",
+      "license": "Apache-2.0",
       "engines": {
         "node": ">=16.20.1"
       }
@@ -150,12 +149,14 @@
     "node_modules/buffer-equal-constant-time": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz",
-      "integrity": "sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA=="
+      "integrity": "sha512-zRpUiDwd/xk6ADqPMATG8vc9VPrkck7T07OIx0gnjmJAnHnTVXNQG3vfvWNuiZIkwu9KrKdA1iJKfsfTVxE6NA==",
+      "license": "BSD-3-Clause"
     },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
       "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.8"
       }
@@ -164,6 +165,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
       "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+      "license": "MIT",
       "dependencies": {
         "es-errors": "^1.3.0",
         "function-bind": "^1.1.2"
@@ -176,6 +178,7 @@
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
       "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+      "license": "MIT",
       "dependencies": {
         "call-bind-apply-helpers": "^1.0.2",
         "get-intrinsic": "^1.3.0"
@@ -191,7 +194,7 @@
       "version": "3.6.0",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
       "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==",
-      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "anymatch": "~3.1.2",
         "braces": "~3.0.2",
@@ -215,12 +218,13 @@
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
       "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
-      "dev": true
+      "license": "MIT"
     },
     "node_modules/content-disposition": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.0.tgz",
       "integrity": "sha512-Au9nRL8VNUut/XSzbQA38+M78dzP4D+eqg3gfJHMIHHYa3bg067xj1KxMUWj+VULbiZMowKngFFbKczUrNJ1mg==",
+      "license": "MIT",
       "dependencies": {
         "safe-buffer": "5.2.1"
       },
@@ -232,6 +236,7 @@
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz",
       "integrity": "sha512-nTjqfcBFEipKdXCv4YDQWCfmcLZKm81ldF0pAopTvyrFGVbcR6P/VAAd5G7N+0tTr8QqiU0tFadD6FK4NtJwOA==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.6"
       }
@@ -240,31 +245,25 @@
       "version": "0.7.2",
       "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz",
       "integrity": "sha512-yki5XnKuf750l50uGTllt6kKILY4nQ1eNIQatoXEByZ5dWgnKqbnqmTrBE5B4N7lrMJKQ2ytWMiTO2o0v6Ew/w==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.6"
       }
     },
-    "node_modules/cookie-parser": {
-      "version": "1.4.7",
-      "resolved": "https://registry.npmjs.org/cookie-parser/-/cookie-parser-1.4.7.tgz",
-      "integrity": "sha512-nGUvgXnotP3BsjiLX2ypbQnWoGUPIIfHQNZkkC668ntrzGWEZVW70HDEB1qnNGMicPje6EttlIgzo51YSwNQGw==",
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       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
-      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
+      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
+      "license": "MIT"
     },
     "node_modules/semver": {
       "version": "7.7.2",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
       "integrity": "sha512-RF0Fw+rO5AMf9MAyaRXI4AV0Ulj5lMHqVxxdSgiVbixSCXoEmmX/jk0CuJw4+3SqroYO9VoUh+HcuJivvtJemA==",
+      "license": "ISC",
       "bin": {
         "semver": "bin/semver.js"
       },
@@ -1188,6 +1228,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/send/-/send-1.2.0.tgz",
       "integrity": "sha512-uaW0WwXKpL9blXE2o0bRhoL2EGXIrZxQ2ZQ4mgcfoBxdFmQold+qWsD2jLrfZ0trjKL6vOw0j//eAwcALFjKSw==",
+      "license": "MIT",
       "dependencies": {
         "debug": "^4.3.5",
         "encodeurl": "^2.0.0",
@@ -1209,6 +1250,7 @@
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-2.2.0.tgz",
       "integrity": "sha512-61g9pCh0Vnh7IutZjtLGGpTA355+OPn2TyDv/6ivP2h/AdAVX9azsoxmg2/M6nZeQZNYBEwIcsne1mJd9oQItQ==",
+      "license": "MIT",
       "dependencies": {
         "encodeurl": "^2.0.0",
         "escape-html": "^1.0.3",
@@ -1222,12 +1264,14 @@
     "node_modules/setprototypeof": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
-      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==",
+      "license": "ISC"
     },
     "node_modules/side-channel": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz",
       "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
+      "license": "MIT",
       "dependencies": {
         "es-errors": "^1.3.0",
         "object-inspect": "^1.13.3",
@@ -1246,6 +1290,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz",
       "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+      "license": "MIT",
       "dependencies": {
         "es-errors": "^1.3.0",
         "object-inspect": "^1.13.3"
@@ -1261,6 +1306,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
       "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+      "license": "MIT",
       "dependencies": {
         "call-bound": "^1.0.2",
         "es-errors": "^1.3.0",
@@ -1278,6 +1324,7 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
       "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+      "license": "MIT",
       "dependencies": {
         "call-bound": "^1.0.2",
         "es-errors": "^1.3.0",
@@ -1295,13 +1342,14 @@
     "node_modules/sift": {
       "version": "17.1.3",
       "resolved": "https://registry.npmjs.org/sift/-/sift-17.1.3.tgz",
-      "integrity": "sha512-Rtlj66/b0ICeFzYTuNvX/EF1igRbbnGSvEyT79McoZa/DeGhMyC5pWKOEsZKnpkqtSeovd5FL/bjHWC3CIIvCQ=="
+      "integrity": "sha512-Rtlj66/b0ICeFzYTuNvX/EF1igRbbnGSvEyT79McoZa/DeGhMyC5pWKOEsZKnpkqtSeovd5FL/bjHWC3CIIvCQ==",
+      "license": "MIT"
     },
     "node_modules/simple-update-notifier": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/simple-update-notifier/-/simple-update-notifier-2.0.0.tgz",
       "integrity": "sha512-a2B9Y0KlNXl9u/vsW6sTIu9vGEpfKu2wRV6l1H3XEas/0gUIzGzBoP/IouTcUQbm9JWZLH3COxyn03TYlFax6w==",
-      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "semver": "^7.5.3"
       },
@@ -1313,6 +1361,7 @@
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
       "integrity": "sha512-kvzhi7vqKTfkh0PZU+2D2PIllw2ymqJKujUcyPMd9Y75Nv4nPbGJZXNhxsgdQab2BmlDct1YnfQCguEvHr7VsQ==",
+      "license": "MIT",
       "dependencies": {
         "memory-pager": "^1.0.2"
       }
@@ -1321,6 +1370,7 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
       "integrity": "sha512-DvEy55V3DB7uknRo+4iOGT5fP1slR8wQohVdknigZPMpMstaKJQWhwiYBACJE3Ul2pTnATihhBYnRhZQHGBiRw==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.8"
       }
@@ -1329,7 +1379,7 @@
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
       "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
-      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "has-flag": "^3.0.0"
       },
@@ -1341,7 +1391,7 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "dev": true,
+      "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
       },
@@ -1353,6 +1403,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
       "integrity": "sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==",
+      "license": "MIT",
       "engines": {
         "node": ">=0.6"
       }
@@ -1361,7 +1412,7 @@
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.1.tgz",
       "integrity": "sha512-r0eojU4bI8MnHr8c5bNo7lJDdI2qXlWWJk6a9EAFG7vbhTjElYhBVS3/miuE0uOuoLdb8Mc/rVfsmm6eo5o9GA==",
-      "dev": true,
+      "license": "ISC",
       "bin": {
         "nodetouch": "bin/nodetouch.js"
       }
@@ -1370,6 +1421,7 @@
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/tr46/-/tr46-5.1.1.tgz",
       "integrity": "sha512-hdF5ZgjTqgAntKkklYw0R03MG2x/bSzTtkxmIRw/sTNV8YXsCJ1tfLAX23lhxhHJlEf3CRCOCGGWw3vI3GaSPw==",
+      "license": "MIT",
       "dependencies": {
         "punycode": "^2.3.1"
       },
@@ -1381,6 +1433,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz",
       "integrity": "sha512-OZs6gsjF4vMp32qrCbiVSkrFmXtG/AZhY3t0iAMrMBiAZyV9oALtXO8hsrHbMXF9x6L3grlFuwW2oAz7cav+Gw==",
+      "license": "MIT",
       "dependencies": {
         "content-type": "^1.0.5",
         "media-typer": "^1.1.0",
@@ -1394,12 +1447,13 @@
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/undefsafe/-/undefsafe-2.0.5.tgz",
       "integrity": "sha512-WxONCrssBM8TSPRqN5EmsjVrsv4A8X12J4ArBiiayv3DyyG3ZlIg6yysuuSYdZsVz3TKcTg2fd//Ujd4CHV1iA==",
-      "dev": true
+      "license": "MIT"
     },
     "node_modules/unpipe": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
       "integrity": "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.8"
       }
@@ -1408,6 +1462,7 @@
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg==",
+      "license": "MIT",
       "engines": {
         "node": ">= 0.8"
       }
@@ -1416,6 +1471,7 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz",
       "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==",
+      "license": "BSD-2-Clause",
       "engines": {
         "node": ">=12"
       }
@@ -1424,6 +1480,7 @@
       "version": "14.2.0",
       "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-14.2.0.tgz",
       "integrity": "sha512-De72GdQZzNTUBBChsXueQUnPKDkg/5A5zp7pFDuQAj5UFoENpiACU0wlCvzpAGnTkj++ihpKwKyYewn/XNUbKw==",
+      "license": "MIT",
       "dependencies": {
         "tr46": "^5.1.0",
         "webidl-conversions": "^7.0.0"
@@ -1435,7 +1492,8 @@
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
     }
   }
 }
diff --git a/server/package.json b/Backend/package.json
similarity index 57%
rename from server/package.json
rename to Backend/package.json
index 662c03c..2ae18d1 100644
--- a/server/package.json
+++ b/Backend/package.json
@@ -1,26 +1,22 @@
 {
-  "name": "server",
+  "name": "backend",
   "version": "1.0.0",
   "main": "index.js",
-  "type": "module",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "dev": "nodemon --watch . index.js"
+    "start": "node index.js",
+    "dev": "nodemon index.js"
   },
-  "keywords": [],
   "author": "",
   "license": "ISC",
   "description": "",
   "dependencies": {
-    "bcrypt": "^6.0.0",
-    "cookie-parser": "^1.4.7",
+    "bcryptjs": "^3.0.2",
     "cors": "^2.8.5",
-    "dotenv": "^17.2.0",
+    "dotenv": "^17.2.1",
     "express": "^5.1.0",
     "jsonwebtoken": "^9.0.2",
-    "mongoose": "^8.16.4"
-  },
-  "devDependencies": {
+    "mongoose": "^8.17.0",
     "nodemon": "^3.1.10"
   }
 }
diff --git a/Backend/routes/auth.js b/Backend/routes/auth.js
new file mode 100644
index 0000000..f9b496d
--- /dev/null
+++ b/Backend/routes/auth.js
@@ -0,0 +1,38 @@
+const express = require('express');
+const router = express.Router();
+const User = require('../../Backend/models/User');
+const jwt = require('jsonwebtoken');
+const bcrypt = require('bcryptjs');
+
+router.post('/signup', async (req, res) => {
+  const { name, email, password } = req.body;
+  try {
+    let user = await User.findOne({ email });
+    if (user) return res.status(400).json({ msg: 'User already exists' });
+
+    user = new User({ name, email, password });
+    await user.save();
+
+    const token = jwt.sign({ id: user._id }, process.env.JWT_SECRET, { expiresIn: '7d' });
+    res.json({ token, user: { id: user._id, name: user.name, email: user.email } });
+  } catch (err) {
+    res.status(500).send('Server error');
+  }
+});
+
+router.post('/signin', async (req, res) => {
+  const { email, password } = req.body;
+  try {
+    const user = await User.findOne({ email });
+    if (!user || !(await user.comparePassword(password))) {
+      return res.status(400).json({ msg: 'Invalid credentials' });
+    }
+
+    const token = jwt.sign({ id: user._id }, process.env.JWT_SECRET, { expiresIn: '7d' });
+    res.json({ token, user: { id: user._id, name: user.name, email: user.email } });
+  } catch (err) {
+    res.status(500).send('Server error');
+  }
+});
+
+module.exports = router;
diff --git a/Backend/routes/goals.js b/Backend/routes/goals.js
new file mode 100644
index 0000000..01fe4a3
--- /dev/null
+++ b/Backend/routes/goals.js
@@ -0,0 +1,145 @@
+const express = require('express');
+const router = express.Router();
+const auth = require('../middleware/auth.js');
+const Goal = require('../models/Goal');
+const Transaction = require('../models/Transaction');
+
+// POST /api/goals - Create a new goal
+router.post('/', auth, async (req, res) => {
+  try {
+    const { name, targetAmount } = req.body;
+
+    // Validate input
+    if (!name || !targetAmount) {
+      return res.status(400).json({ error: 'Name and target amount are required' });
+    }
+
+    if (Number(targetAmount) <= 0) {
+      return res.status(400).json({ error: 'Target amount must be greater than 0' });
+    }
+
+    const goal = new Goal({
+      userId: req.user.id,
+      name,
+      targetAmount: Number(targetAmount),
+      currentAmount: 0
+    });
+
+    await goal.save();
+    res.status(201).json(goal);
+  } catch (err) {
+    console.error('Error saving goal:', err);
+    res.status(500).json({ error: 'Server error while saving goal' });
+  }
+});
+
+// GET /api/goals - Get all goals for the authenticated user
+router.get('/', auth, async (req, res) => {
+  try {
+    const goals = await Goal.find({ userId: req.user.id })
+      .sort({ createdAt: -1 }); // Sort by creation date, newest first
+
+    if (!goals || goals.length === 0) {
+      return res.status(404).json({ error: 'No goals found' });
+    }
+
+    res.status(200).json(goals);
+  } catch (err) {
+    console.error('Error fetching goals:', err);
+    res.status(500).json({ error: 'Server error while fetching goals' });
+  }
+});
+
+// PUT /api/goals/:id - Update a goal
+router.put('/:id', auth, async (req, res) => {
+  try {
+    const updates = req.body;
+    
+    // Validate currentAmount if provided
+    if (updates.currentAmount !== undefined && Number(updates.currentAmount) < 0) {
+      return res.status(400).json({ error: 'Current amount cannot be negative' });
+    }
+
+    // Validate targetAmount if provided
+    if (updates.targetAmount !== undefined && Number(updates.targetAmount) <= 0) {
+      return res.status(400).json({ error: 'Target amount must be greater than 0' });
+    }
+
+    const goal = await Goal.findOneAndUpdate(
+      { _id: req.params.id, userId: req.user.id },
+      updates,
+      { new: true, runValidators: true }
+    );
+
+    if (!goal) {
+      return res.status(404).json({ error: 'Goal not found' });
+    }
+
+    res.status(200).json(goal);
+  } catch (err) {
+    console.error('Error updating goal:', err);
+    res.status(500).json({ error: 'Server error while updating goal' });
+  }
+});
+
+// DELETE /api/goals/:id - Delete a goal and all related transactions
+router.delete('/:id', auth, async (req, res) => {
+  try {
+    // Find the goal first
+    const goal = await Goal.findOne({
+      _id: req.params.id,
+      userId: req.user.id
+    });
+
+    if (!goal) {
+      return res.status(404).json({ error: 'Goal not found' });
+    }
+
+    // Delete all transactions related to this goal
+    const deleteResult = await Transaction.deleteMany({
+      goalId: req.params.id,
+      userId: req.user.id
+    });
+
+    // Delete the goal
+    await Goal.findOneAndDelete({
+      _id: req.params.id,
+      userId: req.user.id
+    });
+
+    res.status(200).json({ 
+      message: 'Goal deleted successfully',
+      deletedTransactions: deleteResult.deletedCount
+    });
+  } catch (err) {
+    console.error('Error deleting goal:', err);
+    res.status(500).json({ error: 'Server error while deleting goal' });
+  }
+});
+
+// GET /api/goals/:id/transactions - Get all transactions for a specific goal
+router.get('/:id/transactions', auth, async (req, res) => {
+  try {
+    // First verify the goal exists and belongs to the user
+    const goal = await Goal.findOne({
+      _id: req.params.id,
+      userId: req.user.id
+    });
+
+    if (!goal) {
+      return res.status(404).json({ error: 'Goal not found' });
+    }
+
+    const transactions = await Transaction.find({
+      goalId: req.params.id,
+      userId: req.user.id
+    }).sort({ date: -1 });
+
+    res.status(200).json(transactions);
+  } catch (err) {
+    console.error('Error fetching goal transactions:', err);
+    res.status(500).json({ error: 'Server error while fetching goal transactions' });
+  }
+});
+
+module.exports = router;
\ No newline at end of file
diff --git a/Backend/routes/transactions.js b/Backend/routes/transactions.js
new file mode 100644
index 0000000..5b35ac3
--- /dev/null
+++ b/Backend/routes/transactions.js
@@ -0,0 +1,146 @@
+const express = require('express');
+const router = express.Router();
+const auth = require('../middleware/auth.js');
+const Transaction = require('../models/Transaction');
+const Goal = require('../models/Goal');
+
+// POST /api/transactions - Add a new transaction
+router.post('/', auth, async (req, res) => {
+  try {
+    const { amount, category, type, date, note, goalId } = req.body;
+
+    // Basic validation
+    if (!amount || !category || !type || !date) {
+      return res.status(400).json({ error: 'Missing required fields' });
+    }
+
+    // Validate and convert date
+    const transactionDate = date ? new Date(date) : new Date();
+    
+    if (isNaN(transactionDate.getTime())) {
+      return res.status(400).json({ error: 'Invalid date format' });
+    }
+
+    const transaction = new Transaction({
+      userId: req.user.id,
+      amount: Number(amount),
+      category,
+      type,
+      date: transactionDate,
+      note,
+      goalId: goalId || null
+    });
+
+    await transaction.save();
+    res.status(201).json(transaction);
+  } catch (err) {
+    console.error('Error creating transaction:', err);
+    res.status(500).json({ error: 'Server error while saving transaction' });
+  }
+});
+
+// GET /api/transactions - Get all transactions for the authenticated user
+router.get('/', auth, async (req, res) => {
+  try {
+    const transactions = await Transaction.find({ userId: req.user.id })
+      .sort({ date: -1 }); // Sort by date, newest first
+
+    if (!transactions || transactions.length === 0) {
+      return res.status(404).json({ error: 'No transactions found' });
+    }
+
+    res.status(200).json(transactions);
+  } catch (err) {
+    console.error('Error fetching transactions:', err);
+    res.status(500).json({ error: 'Server error while fetching transactions' });
+  }
+});
+
+// DELETE /api/transactions/:id - Delete a transaction
+router.delete('/:id', auth, async (req, res) => {
+  try {
+    // Find the transaction first to check if it's related to a goal
+    const transaction = await Transaction.findOne({
+      _id: req.params.id,
+      userId: req.user.id
+    });
+
+    if (!transaction) {
+      return res.status(404).json({ error: 'Transaction not found' });
+    }
+
+    // If this transaction was a contribution to a goal, update the goal's current amount
+    if (transaction.goalId) {
+      await Goal.findOneAndUpdate(
+        { _id: transaction.goalId, userId: req.user.id },
+        { $inc: { currentAmount: -transaction.amount } },
+        { new: true }
+      );
+    }
+
+    // Delete the transaction
+    await Transaction.findOneAndDelete({
+      _id: req.params.id,
+      userId: req.user.id
+    });
+
+    res.status(200).json({ message: 'Transaction deleted successfully' });
+  } catch (err) {
+    console.error('Error deleting transaction:', err);
+    res.status(500).json({ error: 'Server error while deleting transaction' });
+  }
+});
+
+// PUT /api/transactions/:id - Update a transaction
+router.put('/:id', auth, async (req, res) => {
+  try {
+    const { amount, category, type, date, note, goalId } = req.body;
+
+    // Find the existing transaction
+    const existingTransaction = await Transaction.findOne({
+      _id: req.params.id,
+      userId: req.user.id
+    });
+
+    if (!existingTransaction) {
+      return res.status(404).json({ error: 'Transaction not found' });
+    }
+
+    // If the transaction was previously linked to a goal, reverse its contribution
+    if (existingTransaction.goalId) {
+      await Goal.findOneAndUpdate(
+        { _id: existingTransaction.goalId, userId: req.user.id },
+        { $inc: { currentAmount: -existingTransaction.amount } }
+      );
+    }
+
+    // Update the transaction
+    const updatedTransaction = await Transaction.findOneAndUpdate(
+      { _id: req.params.id, userId: req.user.id },
+      {
+        amount: Number(amount),
+        category,
+        type,
+        date: date ? new Date(date) : existingTransaction.date,
+        note,
+        goalId: goalId || null
+      },
+      { new: true }
+    );
+
+    // If the updated transaction is linked to a goal, add its contribution
+    if (updatedTransaction.goalId) {
+      await Goal.findOneAndUpdate(
+        { _id: updatedTransaction.goalId, userId: req.user.id },
+        { $inc: { currentAmount: updatedTransaction.amount } }
+      );
+    }
+
+    res.status(200).json(updatedTransaction);
+  } catch (err) {
+    console.error('Error updating transaction:', err);
+    res.status(500).json({ error: 'Server error while updating transaction' });
+  }
+});
+
+module.exports = router;
\ No newline at end of file
diff --git a/server/.env.sample b/server/.env.sample
deleted file mode 100644
index 13ff683..0000000
--- a/server/.env.sample
+++ /dev/null
@@ -1,8 +0,0 @@
-MONGODB_URL="" # Your MongoDB connection instance.
-DB_NAME="" # DB name ex: SmartLog
-CORS_ORIGIN=* # add the frontend origin
-PORT=8000
-ACCESS_TOKEN_SECRET= # your access token secret here for encryption.
-ACCESS_TOKEN_EXPIRY= # ex: 1d
-REFRESH_TOKEN_SECRET= # your refresh token secret here for encryption.
-REFRESH_TOKEN_EXPIRY= # ex: 10d
\ No newline at end of file
diff --git a/server/.gitignore b/server/.gitignore
deleted file mode 100644
index b277f17..0000000
--- a/server/.gitignore
+++ /dev/null
@@ -1,120 +0,0 @@
-# Logs
-logs
-*.log
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
-lerna-debug.log*
-.pnpm-debug.log*
-
-# Diagnostic reports (https://nodejs.org/api/report.html)
-report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
-
-# Coverage directory used by tools like istanbul
-coverage
-*.lcov
-
-# nyc test coverage
-.nyc_output
-
-# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
-.grunt
-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
-.lock-wscript
-
-# Compiled binary addons (https://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directories
-node_modules/
-jspm_packages/
-
-# Snowpack dependency directory (https://snowpack.dev/)
-web_modules/
-
-# TypeScript cache
-*.tsbuildinfo
-
-# Optional npm cache directory
-.npm
-
-# Optional eslint cache
-.eslintcache
-
-# Microbundle cache
-.rpt2_cache/
-.rts2_cache_cjs/
-.rts2_cache_es/
-.rts2_cache_umd/
-
-# Optional REPL history
-.node_repl_history
-
-# Output of 'npm pack'
-*.tgz
-
-# Yarn Integrity file
-.yarn-integrity
-
-# dotenv environment variables file
-.env
-.env.test
-.env.production
-
-# parcel-bundler cache (https://parceljs.org/)
-.cache
-.parcel-cache
-
-# Next.js build output
-.next
-out
-
-# Nuxt.js build / generate output
-.nuxt
-dist
-
-# Gatsby files
-.cache/
-# Comment in the public line in if your project uses Gatsby and not Next.js
-# https://nextjs.org/blog/next-9-1#public-directory-support
-# public
-
-# vuepress build output
-.vuepress/dist
-
-# Serverless directories
-.serverless/
-
-# FuseBox cache
-.fusebox/
-
-# DynamoDB Local files
-.dynamodb/
-
-# TernJS port file
-.tern-port
-
-# Stores VSCode versions used for testing VSCode extensions
-.vscode-test
-
-# yarn v2
-.yarn/cache
-.yarn/unplugged
-.yarn/build-state.yml
-.yarn/install-state.gz
-.pnp.*
-
-# End of https://mrkandreev.name/snippets/gitignore-generator/#Node
\ No newline at end of file
diff --git a/server/app.js b/server/app.js
deleted file mode 100644
index 8033926..0000000
--- a/server/app.js
+++ /dev/null
@@ -1,20 +0,0 @@
-import express from "express";
-import cookieParser from "cookie-parser";
-import cors from "cors";
-
-const app = express();
-app.use(cors({ credentials: true, origin: process.env.CORS_ORIGIN }));
-app.use(express.json({ limit: "16kb" }));
-app.use(express.urlencoded({ extended: true }));
-app.use(cookieParser());
-
-// Health Checkup
-app.get("/is-up", (req, res) => {
-  res.send("Hello World!");
-});
-
-// All the routes here
-import userRoutes from "./routers/user.routers.js";
-app.use("/api/v1/users", userRoutes);
-
-export default app;
diff --git a/server/controllers/user.controllers.js b/server/controllers/user.controllers.js
deleted file mode 100644
index e9447f3..0000000
--- a/server/controllers/user.controllers.js
+++ /dev/null
@@ -1,147 +0,0 @@
-import ApiError from "../utils/ApiError.js";
-import ApiResponse from "../utils/ApiResponse.js";
-import asyncHandler from "../utils/asyncHandler.js";
-import { User } from "../models/user.models.js";
-
-const generateAccessAndRefreshToken = async (user) => {
-  const accessToken = await user.generateAccessToken();
-  const refreshToken = await user.generateRefreshToken();
-  user.refreshToken = refreshToken;
-  // Skip validation since only partial fields are updated (other required fields may be missing)
-  await user.save({
-    validateBeforeSave: false,
-  });
-
-  return { accessToken: accessToken, refreshToken: refreshToken };
-};
-
-const registerUser = asyncHandler(async (req, res) => {
-  const { username, email, password, fullName } = req.body;
-
-  // Checking if the each and every field that it's not empty
-  if (
-    [username, email, password, fullName].some((field) => field?.trim() === "")
-  ) {
-    //if Any of the field is empty it will throw and exception
-    throw new ApiError(400, "All the fields are required");
-  }
-  const isUserExists = await User.findOne({ $or: [{ username }, { email }] });
-  if (isUserExists) {
-    // Just a simple if else check if both the name and email have already been created and throws error based on the condition
-
-    // if (isUserExists.username === username && isUserExists.email === email) {
-    //   throw new ApiError(
-    //     401,
-    //     "User with the following username or email exists"
-    //   );
-    // } else if (
-    //   isUserExists.username === username &&
-    //   !isUserExists.email === email
-    // ) {
-    //   throw new ApiError(401, "User with the following username exists");
-    // } else throw new ApiError(401, "User with the following email exists");
-
-    // ***** More cleaner version ***** //
-
-    let conflictField = [];
-
-    if (isUserExists.username === username.toLowerCase())
-      conflictField.push("username");
-    if (isUserExists.email === email) conflictField.push("email");
-
-    const message = `User with this ${conflictField.join(
-      " and "
-    )} already exists`;
-    throw new ApiError(401, message);
-  }
-
-  //If not already exists create a new user with their credentials
-  const user = await User.create({
-    username: username.toLowerCase(),
-    email,
-    password,
-    fullName,
-  });
-  if (!user) {
-    throw new ApiError(
-      500,
-      "Something went wrong while creating user in the database"
-    );
-  }
-
-  const createdUser = await User.findById(user._id).select(
-    "-password -refreshToken"
-  );
-
-  //Fallback checking if for any reason the user has been deleted
-
-  if (!createdUser) {
-    throw new ApiError(
-      500,
-      "Something went wrong while fetching user from the database"
-    );
-  }
-  return res
-    .status(201)
-    .json(new ApiResponse(200, createdUser, "User registered successfully"));
-});
-
-const loginUser = asyncHandler(async (req, res) => {
-  const { username, email, password } = req.body;
-  //Any one field is required
-  if (!username && !email) {
-    throw new ApiError(400, "Username or email is required");
-  }
-  const user = await User.findOne({
-    $or: [{ email }, { username }],
-  });
-
-  if (!user) {
-    throw new ApiError(404, "No user with the current username or email");
-  }
-
-  const isPasswordCorrect = await user.isPasswordCorrect(password);
-
-  if (!isPasswordCorrect) {
-    throw new ApiError(401, "Invalid password");
-  }
-  //Generating user access and refresh tokens
-  const { accessToken, refreshToken } = await generateAccessAndRefreshToken(
-    user
-  );
-
-  const loggedInUser = await User.findById(user._id).select(
-    "-password -refreshToken"
-  );
-  const options = {
-    httpOnly: true,
-    secure: true,
-  };
-  return res
-    .status(200)
-    .cookie("accessToken", accessToken, options)
-    .cookie("refreshToken", refreshToken, options)
-    .json(new ApiResponse(200, loggedInUser, "User logged in successfully"));
-});
-
-const logoutUser = asyncHandler(async (req, res) => {
-  await User.findByIdAndUpdate(
-    req.user._id,
-    { $set: { refreshToken: undefined } }
-
-    // Returns the updated document
-    // { new: true }
-  );
-  const options = {
-    httpOnly: true,
-    secure: true,
-  };
-
-  return res
-    .status(200)
-    .clearCookie("accessToken", options)
-    .clearCookie("refreshToken", options)
-    .json(new ApiResponse(200, {}, "User logged out"));
-});
-
-export { registerUser, loginUser, logoutUser };
diff --git a/server/db/index.js b/server/db/index.js
deleted file mode 100644
index 13548fa..0000000
--- a/server/db/index.js
+++ /dev/null
@@ -1,16 +0,0 @@
-import mongoose from "mongoose";
-
-const connectDB = async () => {
-  try {
-    const connectionInstance = await mongoose.connect(
-      `${process.env.MONGODB_URL}/${process.env.DB_NAME}`
-    );
-    console.log(
-      `\n MongoDB connected !! DB HOST: ${connectionInstance.connection.host}`
-    );
-  } catch (error) {
-    console.log("MongoDB connection error", error);
-  }
-};
-
-export default connectDB;
diff --git a/server/index.js b/server/index.js
deleted file mode 100644
index 2069531..0000000
--- a/server/index.js
+++ /dev/null
@@ -1,20 +0,0 @@
-import dotenv from "dotenv";
-import connectDB from "./db/index.js";
-import app from "./app.js";
-
-//To read all the constraints from .env file
-dotenv.config();
-connectDB()
-  .then(() => {
-    app.on("error", (err) => {
-      console.log(err);
-      throw err;
-    });
-    app.listen(process.env.PORT || 8000, () =>
-      console.log(`Server is running at the port ${process.env.PORT}`)
-    );
-  })
-  .catch((err) => {
-    console.log("MongoDB connection failed!!", err);
-    process.exit(1);
-  });
diff --git a/server/middlewares/auth.middleware.js b/server/middlewares/auth.middleware.js
deleted file mode 100644
index c53bcab..0000000
--- a/server/middlewares/auth.middleware.js
+++ /dev/null
@@ -1,32 +0,0 @@
-import { User } from "../models/user.models.js";
-import asyncHandler from "../utils/asyncHandler.js";
-import ApiError from "../utils/ApiError.js";
-import jwt from "jsonwebtoken";
-
-export const verifyUser = asyncHandler(async (req, res, next) => {
-  try {
-    // Fetching tokens either from cookies or header
-    const token =
-      req.cookies?.accessToken ||
-      req.header("Authorization")?.replace("Bearer ", "");
-
-    if (!token) {
-      throw new ApiError(401, "Unauthorized request");
-    }
-
-    // Decoded token contains id, email and username
-    // This might throw error so wrap it in a try catch
-    const decodedToken = jwt.verify(token, process.env.ACCESS_TOKEN_SECRET);
-
-    const user = await User.findById(decodedToken?._id).select(
-      "-password -refreshToken"
-    );
-    if (!user) {
-      throw new ApiError(401, "Invalid Access Token");
-    }
-    req.user = user;
-    next();
-  } catch (error) {
-    throw new ApiError(401, error?.message || "Invalid access token");
-  }
-});
diff --git a/server/models/user.models.js b/server/models/user.models.js
deleted file mode 100644
index 6583879..0000000
--- a/server/models/user.models.js
+++ /dev/null
@@ -1,67 +0,0 @@
-import mongoose, { Schema } from "mongoose";
-import jwt from "jsonwebtoken";
-import bcrypt from "bcrypt";
-
-const userSchema = new Schema({
-  username: {
-    type: String,
-    required: true,
-    unique: true,
-    lowercase: true,
-    trim: true,
-    index: true,
-  },
-  email: {
-    type: String,
-    required: true,
-    unique: true,
-    trim: true,
-    index: true,
-  },
-  fullName: {
-    type: String,
-    required: true,
-    trim: true,
-    index: true,
-  },
-  refreshToken: {
-    type: String,
-  },
-  password: {
-    type: String,
-    required: [true, "Password is required"],
-  },
-});
-
-userSchema.pre("save", async function (next) {
-  if (!this.isModified("password")) return next();
-  this.password = await bcrypt.hash(this.password, 10);
-  next();
-});
-
-userSchema.methods.isPasswordCorrect = async function (password) {
-  return await bcrypt.compare(password, this.password);
-};
-
-userSchema.methods.generateAccessToken = async function () {
-  return jwt.sign(
-    {
-      _id: this._id,
-      email: this.email,
-      username: this.username,
-    },
-    process.env.ACCESS_TOKEN_SECRET,
-    { expiresIn: process.env.ACCESS_TOKEN_EXPIRY }
-  );
-};
-userSchema.methods.generateRefreshToken = async function () {
-  return jwt.sign(
-    {
-      _id: this._id,
-    },
-    process.env.REFRESH_TOKEN_SECRET,
-    { expiresIn: process.env.REFRESH_TOKEN_EXPIRY }
-  );
-};
-
-export const User = mongoose.model("User", userSchema);
diff --git a/server/routers/user.routers.js b/server/routers/user.routers.js
deleted file mode 100644
index 6c58dd9..0000000
--- a/server/routers/user.routers.js
+++ /dev/null
@@ -1,17 +0,0 @@
-import { Router } from "express";
-import {
-  loginUser,
-  logoutUser,
-  registerUser,
-} from "../controllers/user.controllers.js";
-import { verifyUser } from "../middlewares/auth.middleware.js";
-
-const router = Router();
-
-router.post("/sign-up", registerUser);
-router.post("/sign-in", loginUser);
-
-// use router.use(middleware) if there are more routes which required middleware
-router.post("/logout", verifyUser, logoutUser);
-
-export default router;
diff --git a/server/utils/ApiError.js b/server/utils/ApiError.js
deleted file mode 100644
index 769f210..0000000
--- a/server/utils/ApiError.js
+++ /dev/null
@@ -1,29 +0,0 @@
-class ApiError extends Error {
-  constructor(
-    statusCode,
-    message = "Something went wrong",
-    errors = [],
-    stack = ""
-  ) {
-    super(message);
-    this.statusCode = statusCode;
-    this.message = message;
-    this.data = null;
-    this.success = false;
-    this.errors = errors;
-
-    /**
-     * If a stack trace is manually provided (e.g., when wrapping another error),
-     * use that stack trace. Otherwise, capture the current stack trace starting
-     * from where this error was created, and exclude the constructor from it.
-     */
-
-    if (stack) {
-      this.stack = stack;
-    } else {
-      Error.captureStackTrace(this, this.constructor);
-    }
-  }
-}
-
-export default ApiError;
diff --git a/server/utils/ApiResponse.js b/server/utils/ApiResponse.js
deleted file mode 100644
index 2bceb15..0000000
--- a/server/utils/ApiResponse.js
+++ /dev/null
@@ -1,10 +0,0 @@
-class ApiResponse {
-  constructor(statusCode, data, message = "Success") {
-    this.statusCode = statusCode;
-    this.data = data;
-    this.message = message;
-    this.success = statusCode < 400;
-  }
-}
-
-export default ApiResponse;
diff --git a/server/utils/asyncHandler.js b/server/utils/asyncHandler.js
deleted file mode 100644
index 514b9ee..0000000
--- a/server/utils/asyncHandler.js
+++ /dev/null
@@ -1,8 +0,0 @@
-// Wrapper function to handle asynchronous route handlers and forward errors to Express
-const asycnHandler = (fn) => {
-  return (req, res, next) => {
-    Promise.resolve(fn(req, res, next)).catch((err) => next(err));
-  };
-};
-
-export default asycnHandler;
diff --git a/src/components/AuthModal.jsx b/src/components/AuthModal.jsx
new file mode 100644
index 0000000..84cb6cb
--- /dev/null
+++ b/src/components/AuthModal.jsx
@@ -0,0 +1,155 @@
+import React, { use, useState } from 'react';
+import { useNavigate } from 'react-router-dom';
+
+export default function AuthModal({ onClose }) {
+  const [isSignUp, setIsSignUp] = useState(false);
+  const [form, setForm] = useState({ name: '', email: '', password: '' });
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState('');
+  const navigate=useNavigate();
+
+  const API_BASE_URL = `${import.meta.env.VITE_API_URL}/api/auth`;
+
+  const handleChange = (e) => {
+    setForm({ ...form, [e.target.name]: e.target.value });
+  };
+
+  const handleSubmit = async (e) => {
+    e.preventDefault();
+    setLoading(true);
+    setError('');
+
+    try {
+      const endpoint = isSignUp ? '/signup' : '/signin';
+      const response = await fetch(`${API_BASE_URL}${endpoint}`, {
+        method: 'POST',
+        headers: {
+          'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(form),
+      });
+
+      const data = await response.json();
+
+      if (!response.ok) {
+        throw new Error(data.msg || 'Something went wrong');
+      }
+
+      // Save JWT token to localStorage
+      localStorage.setItem('token', data.token);
+      localStorage.setItem('user', JSON.stringify(data.user));
+
+      // Optionally: redirect or show success toast
+      console.log('Authenticated:', data);
+
+      onClose();
+      navigate('/dashboard'); 
+    } catch (err) {
+      setError(err.message);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  return (
+    <div className="fixed inset-0 bg-black/40 backdrop-blur-sm z-50 flex items-center justify-center">
+      <div className="bg-white rounded-2xl shadow-2xl p-8 w-full max-w-md relative transition-all duration-300">
+        {/* Close Button */}
+        <button
+          onClick={onClose}
+          className="absolute top-3 right-4 text-2xl text-gray-400 hover:text-red-500"
+        >
+          &times;
+        </button>
+
+        {/* Title */}
+        <h2 className="text-2xl font-bold text-center text-purple-700 mb-6">
+          {isSignUp ? 'Create an Account' : 'Welcome Back'}
+        </h2>
+
+        {/* Toggle Buttons */}
+        <div className="flex justify-center space-x-2 mb-6">
+          <button
+            onClick={() => setIsSignUp(false)}
+            className={`px-5 py-2 text-sm font-semibold rounded-full transition ${
+              !isSignUp
+                ? 'bg-purple-600 text-white shadow-md'
+                : 'bg-gray-200 text-gray-700'
+            }`}
+          >
+            Sign In
+          </button>
+          <button
+            onClick={() => setIsSignUp(true)}
+            className={`px-5 py-2 text-sm font-semibold rounded-full transition ${
+              isSignUp
+                ? 'bg-purple-600 text-white shadow-md'
+                : 'bg-gray-200 text-gray-700'
+            }`}
+          >
+            Sign Up
+          </button>
+        </div>
+
+        {/* Form */}
+        <form onSubmit={handleSubmit} className="space-y-4">
+          {isSignUp && (
+            <div>
+              <label className="block text-sm font-medium mb-1">Full Name</label>
+              <input
+                type="text"
+                name="name"
+                value={form.name}
+                onChange={handleChange}
+                className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-purple-500"
+                required
+              />
+            </div>
+          )}
+
+          <div>
+            <label className="block text-sm font-medium mb-1">Email</label>
+            <input
+              type="email"
+              name="email"
+              value={form.email}
+              onChange={handleChange}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-purple-500"
+              required
+            />
+          </div>
+
+          <div>
+            <label className="block text-sm font-medium mb-1">Password</label>
+            <input
+              type="password"
+              name="password"
+              value={form.password}
+              onChange={handleChange}
+              className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:ring-2 focus:ring-purple-500"
+              required
+            />
+          </div>
+
+          {error && <p className="text-red-500 text-sm mt-2">{error}</p>}
+
+          <button
+            type="submit"
+            disabled={loading}
+            className={`w-full bg-purple-600 hover:bg-purple-700 text-white py-2 mt-2 rounded-lg font-semibold transition ${
+              loading ? 'opacity-60 cursor-not-allowed' : ''
+            }`}
+          >
+            {loading
+              ? isSignUp
+                ? 'Creating...'
+                : 'Signing In...'
+              : isSignUp
+              ? 'Create Account'
+              : 'Sign In'}
+          </button>
+        </form>
+      </div>
+    </div>
+  );
+}
diff --git a/src/components/Dashboard.jsx b/src/components/Dashboard.jsx
index 9eb39ac..a6a0a13 100644
--- a/src/components/Dashboard.jsx
+++ b/src/components/Dashboard.jsx
@@ -1,4 +1,4 @@
-import { Plus, TrendingUp, TrendingDown, Wallet, IndianRupee, Calendar, Tag, Filter, Search, Eye, EyeOff, ChevronDown, ChevronLeft, ChevronRight, Trash2, Download, Moon, Sun, Target } from "lucide-react";
+import { Plus, TrendingUp, TrendingDown, Wallet, IndianRupee, Calendar, Tag, Filter, Search, Eye, EyeOff, ChevronDown, ChevronLeft, ChevronRight, Trash2, Download, Moon, Sun, Target, LogOut } from "lucide-react";
 import { useTransactions } from "./TransactionContext";
 import { useCurrency } from "./CurrencyContext";
 import { useState, useEffect } from "react";
@@ -8,7 +8,7 @@ import Footer from "./Footer";
 // Download imports
 import { PDFDownloadLink } from "@react-pdf/renderer";
 import TransactionPDF from "./TransactionPDF";
-import { Link } from "react-router-dom";
+import { Link, useNavigate } from "react-router-dom";
 
 export default function Dashboard() {
   const { transactions, income, expense, setTransactions, deleteTransaction } = useTransactions();
@@ -18,7 +18,7 @@ export default function Dashboard() {
   const [isVisible, setIsVisible] = useState(false);
   const [hoveredCard, setHoveredCard] = useState(null);
   const [showBalance, setShowBalance] = useState(true);
-
+  const navigate = useNavigate();
 
   const [animatedValues, setAnimatedValues] = useState({ income: 0, expense: 0, balance: 0 });
   const { currency, locale, setCurrency, setLocale } = useCurrency();
@@ -57,6 +57,14 @@ export default function Dashboard() {
     setDarkMode(!darkMode);
   };
 
+  // Logout function
+  const handleLogout = () => {
+     localStorage.removeItem('token');
+      localStorage.removeItem('user');
+    // Redirect to home page
+    navigate('/');
+  };
+
   // Apply dark mode class to body
   useEffect(() => {
     if (darkMode) {
@@ -208,17 +216,33 @@ export default function Dashboard() {
               </p>
             </div>
 
-            {/* Dark Mode Toggle Button */}
-            <button
-              onClick={toggleDarkMode}
-              className={`p-2 rounded-full transition-all duration-300 ${darkMode
-                ? "bg-gray-700 text-yellow-300 hover:bg-gray-600"
-                : "bg-gray-200 text-gray-700 hover:bg-gray-300"
-                }`}
-              aria-label="Toggle dark mode"
-            >
-              {darkMode ? <Sun className="w-5 h-5" /> : <Moon className="w-5 h-5" />}
-            </button>
+            {/* Theme Toggle and Logout Buttons */}
+            <div className="flex items-center gap-3">
+              {/* Dark Mode Toggle Button */}
+              <button
+                onClick={toggleDarkMode}
+                className={`p-2 rounded-full transition-all duration-300 ${darkMode
+                  ? "bg-gray-700 text-yellow-300 hover:bg-gray-600"
+                  : "bg-gray-200 text-gray-700 hover:bg-gray-300"
+                  }`}
+                aria-label="Toggle dark mode"
+              >
+                {darkMode ? <Sun className="w-5 h-5" /> : <Moon className="w-5 h-5" />}
+              </button>
+
+              {/* Logout Button */}
+              <button
+                onClick={handleLogout}
+                className={`p-2 rounded-full transition-all duration-300 ${darkMode
+                  ? "bg-red-700 text-red-300 hover:bg-red-600"
+                  : "bg-red-100 text-red-600 hover:bg-red-200"
+                  }`}
+                aria-label="Logout"
+                title="Logout"
+              >
+                <LogOut className="w-5 h-5" />
+              </button>
+            </div>
           </div>
 
           <div className="grid grid-cols-1 md:grid-cols-3 gap-6 mb-8">
diff --git a/src/components/HomePage.jsx b/src/components/HomePage.jsx
index 12d2261..7ef9391 100644
--- a/src/components/HomePage.jsx
+++ b/src/components/HomePage.jsx
@@ -1,73 +1,72 @@
 import { useState, useEffect } from 'react';
-import { IndianRupee, TrendingUp, PieChart, BarChart3, Sparkles, ArrowRight, Plus } from 'lucide-react';
-import { useNavigate } from 'react-router-dom';
+import {
+  IndianRupee,
+  TrendingUp,
+  PieChart,
+  BarChart3,
+  Sparkles,
+  ArrowRight,
+} from 'lucide-react';
 import { motion } from 'framer-motion';
 import Footer from './Footer';
+import AuthModal from './AuthModal';
 
 export default function HomePage() {
   const [isVisible, setIsVisible] = useState(false);
   const [hoveredFeature, setHoveredFeature] = useState(null);
-  const navigate = useNavigate();
+  const [showAuthModal, setShowAuthModal] = useState(false);
 
   useEffect(() => {
     setIsVisible(true);
   }, []);
 
   const handleGetStarted = () => {
-    navigate('/dashboard');
+    setShowAuthModal(true);
   };
 
   const features = [
-    { 
-      icon: IndianRupee, 
-      title: 'Track Expenses', 
-      desc: 'Monitor every rupee', 
-      color: 'from-blue-400 to-blue-500',
-      bgColor: 'bg-blue-500'
+    {
+      icon: IndianRupee,
+      title: 'Track Expenses',
+      desc: 'Monitor every rupee',
+      bgColor: 'bg-blue-500',
     },
-    { 
-      icon: TrendingUp, 
-      title: 'Smart Analytics', 
-      desc: 'Insights that matter', 
-      color: 'from-purple-400 to-pink-500',
-      bgColor: 'bg-gradient-to-br from-purple-400 to-pink-500'
+    {
+      icon: TrendingUp,
+      title: 'Smart Analytics',
+      desc: 'Insights that matter',
+      bgColor: 'bg-gradient-to-br from-purple-400 to-pink-500',
     },
-    { 
-      icon: BarChart3, 
-      title: 'Budget Goals', 
-      desc: 'Stay on track', 
-      color: 'from-pink-400 to-red-500',
-      bgColor: 'bg-gradient-to-br from-pink-400 to-red-500'
+    {
+      icon: BarChart3,
+      title: 'Budget Goals',
+      desc: 'Stay on track',
+      bgColor: 'bg-gradient-to-br from-pink-400 to-red-500',
+    },
+    {
+      icon: PieChart,
+      title: 'Visual Reports',
+      desc: 'See your spending',
+      bgColor: 'bg-gradient-to-br from-green-400 to-blue-500',
     },
-    { 
-      icon: PieChart, 
-      title: 'Visual Reports', 
-      desc: 'See your spending', 
-      color: 'from-green-400 to-blue-500',
-      bgColor: 'bg-gradient-to-br from-green-400 to-blue-500'
-    }
   ];
 
   return (
     <div className="min-h-screen bg-gradient-to-br from-purple-50 via-white to-purple-100 relative overflow-hidden">
       <div className="relative z-10 container mx-auto px-6 py-8">
-        {/* Main Content Section - SmartLog Branding Left, Device Mockup Right */}
+        {/* Hero Section */}
         <div className="flex items-center justify-between mb-20">
-          {/* Left Side - SmartLog Branding */}
           <div className="flex-1 max-w-lg ml-16">
             <div className="mb-8">
-              {/* SmartLog Logo */}
               <div className="w-20 h-20 bg-gradient-to-br from-purple-400 to-pink-500 rounded-2xl flex items-center justify-center shadow-lg mb-6">
                 <Sparkles className="w-10 h-10 text-white" />
               </div>
-              <div>
-                <h1 className="text-5xl font-black text-gray-800 mb-4">SmartLog</h1>
-                <p className="text-xl text-gray-600 leading-relaxed max-w-lg">
-                  Transform your financial future with AI-powered insights, beautiful visualizations, and smart automation.
-                </p>
-              </div>
+              <h1 className="text-5xl font-black text-gray-800 mb-4">SmartLog</h1>
+              <p className="text-xl text-gray-600 leading-relaxed max-w-lg">
+                Transform your financial future with AI-powered insights,
+                beautiful visualizations, and smart automation.
+              </p>
             </div>
-            
             <button
               onClick={handleGetStarted}
               className="bg-gradient-to-r from-purple-500 to-pink-500 text-white px-12 py-5 rounded-full font-bold text-xl hover:shadow-lg hover:scale-105 transition-all duration-300 flex items-center space-x-3"
@@ -76,63 +75,42 @@ export default function HomePage() {
               <ArrowRight className="w-6 h-6" />
             </button>
           </div>
-
-          {/* Right Side - Device Mockup Image */}
           <div className="flex-1 flex justify-end">
-            <img 
-              src="/laptop_mobile_mockup.png" 
-              alt="SmartLog Mobile and Laptop Mockup" 
+            <img
+              src="/laptop_mobile_mockup.png"
+              alt="SmartLog Mobile and Laptop Mockup"
               className="w-auto h-[500px] object-contain"
             />
           </div>
         </div>
 
-        {/* Bottom Section - Feature Boxes */}
+        {/* Features Section */}
         <div className="grid grid-cols-2 md:grid-cols-4 gap-8 mb-16 max-w-6xl mx-auto">
           {features.map((feature, index) => {
             const Icon = feature.icon;
-            const isHovered = hoveredFeature === index;
             return (
               <motion.div
                 key={index}
                 initial={{ opacity: 0, y: 80, scale: 0.9 }}
                 animate={{ opacity: 1, y: 0, scale: 1 }}
-                transition={{ 
-                  duration: 0.8, 
+                transition={{
+                  duration: 0.8,
                   delay: index * 0.15,
-                  ease: [0.25, 0.46, 0.45, 0.94]
+                  ease: [0.25, 0.46, 0.45, 0.94],
                 }}
-                whileHover={{ 
+                whileHover={{
                   scale: 1.03,
                   y: -8,
-                  transition: { 
+                  transition: {
                     duration: 0.4,
-                    ease: [0.25, 0.46, 0.45, 0.94]
-                  }
+                    ease: [0.25, 0.46, 0.45, 0.94],
+                  },
                 }}
-                className={`group p-8 rounded-3xl bg-white shadow-xl hover:shadow-2xl transition-all duration-500 cursor-pointer ${
-                  isHovered ? 'border-2 border-purple-200' : 'border border-gray-100'
-                }`}
-                onMouseEnter={() => setHoveredFeature(index)}
-                onMouseLeave={() => setHoveredFeature(null)}
+                className="group p-8 rounded-3xl bg-white shadow-xl hover:shadow-2xl transition-all duration-500 border border-gray-100"
               >
-                <motion.div 
-                  className={`w-16 h-16 mx-auto mb-6 rounded-2xl ${feature.bgColor} flex items-center justify-center`}
-                  whileHover={{ 
-                    scale: 1.08, 
-                    rotate: 3,
-                    transition: { 
-                      duration: 0.4,
-                      ease: [0.25, 0.46, 0.45, 0.94]
-                    }
-                  }}
-                  transition={{ 
-                    duration: 0.4,
-                    ease: [0.25, 0.46, 0.45, 0.94]
-                  }}
-                >
+                <div className={`w-16 h-16 mx-auto mb-6 rounded-2xl ${feature.bgColor} flex items-center justify-center`}>
                   <Icon className="w-8 h-8 text-white" />
-                </motion.div>
+                </div>
                 <h3 className="font-bold text-gray-800 mb-3 text-center text-xl">{feature.title}</h3>
                 <p className="text-base text-gray-500 text-center group-hover:text-gray-600 transition-colors duration-300">
                   {feature.desc}
@@ -143,7 +121,10 @@ export default function HomePage() {
         </div>
       </div>
 
+      {/* Auth Modal */}
+      {showAuthModal && <AuthModal onClose={() => setShowAuthModal(false)} />}
+
       <Footer />
     </div>
   );
-}
\ No newline at end of file
+}
diff --git a/src/components/TransactionContext.jsx b/src/components/TransactionContext.jsx
index c319bcf..3d73a1d 100644
--- a/src/components/TransactionContext.jsx
+++ b/src/components/TransactionContext.jsx
@@ -12,58 +12,236 @@ const getTodaysDate = () => {
   return `${day}/${month}/${year}`;
 };
 
+// Convert ISO date string to DD/MM/YYYY format
+const formatDateFromISO = (isoString) => {
+  if (!isoString) return getTodaysDate();
+  
+  const date = new Date(isoString);
+  const day = String(date.getDate()).padStart(2, "0");
+  const month = String(date.getMonth() + 1).padStart(2, "0");
+  const year = date.getFullYear();
+  return `${day}/${month}/${year}`;
+};
+
+// Convert DD/MM/YYYY format to ISO string for backend
+const formatDateToISO = (dateString) => {
+  if (!dateString) return new Date().toISOString();
+  
+  const [day, month, year] = dateString.split('/');
+  const date = new Date(year, month - 1, day);
+  return date.toISOString();
+};
+
+// API utility functions
+const apiCall = async (url, options = {}) => {
+  const token = localStorage.getItem('token'); 
+  
+  const config = {
+    headers: {
+      'Content-Type': 'application/json',
+      ...(token && { 'Authorization': `Bearer ${token}` }),
+      ...options.headers,
+    },
+    ...options,
+  };
+  const apiUrl = import.meta.env.VITE_API_URL;
+  const response = await fetch(`${apiUrl}${url}`, config);
+  if (!response.ok) {
+    const error = await response.json();
+    throw new Error(error.error || `HTTP error! status: ${response.status}`);
+  }
+  
+  return response.json();
+};
+
 export const TransactionProvider = ({ children }) => {
-  const [transactions, setTransactions] = useState(() => {
-    const saved = localStorage.getItem('transactions');
-    return saved ? JSON.parse(saved) : [];
-  });
+  const [transactions, setTransactions] = useState([]);
+  const [goals, setGoals] = useState([]);
+  const [loading, setLoading] = useState(true);
+  const [error, setError] = useState(null);
+
+  // Fetch transactions from API
+  const fetchTransactions = async () => {
+    try {
+      const data = await apiCall('/api/transactions');
+      // Format dates from ISO to DD/MM/YYYY
+      const formattedTransactions = data.map(transaction => ({
+        ...transaction,
+        date: formatDateFromISO(transaction.date)
+      }));
+      setTransactions(formattedTransactions);
+      setError(null);
+    } catch (err) {
+      console.error('Error fetching transactions:', err);
+      if (err.message.includes('No transactions found')) {
+        setTransactions([]); // Handle empty state
+        setError(null);
+      } else {
+        setError(err.message);
+      }
+    }
+  };
 
-  const [goals, setGoals] = useState(() => {
-    const saved = localStorage.getItem('goals');
-    return saved ? JSON.parse(saved) : [];
-  })
+  // Fetch goals from API
+  const fetchGoals = async () => {
+    try {
+      const data = await apiCall('/api/goals');
+      setGoals(data);
+      setError(null);
+    } catch (err) {
+      console.error('Error fetching goals:', err);
+      if (err.message.includes('No goals found')) {
+        setGoals([]); // Handle empty state
+        setError(null);
+      } else {
+        setError(err.message);
+      }
+    }
+  };
 
+  // Load data on component mount
   useEffect(() => {
-    localStorage.setItem('transactions', JSON.stringify(transactions));
-  }, [transactions]);
+    const loadData = async () => {
+      setLoading(true);
+      try {
+        await Promise.all([fetchTransactions(), fetchGoals()]);
+      } catch (err) {
+        console.error('Error loading data:', err);
+      } finally {
+        setLoading(false);
+      }
+    };
 
-  useEffect(() => {
-    localStorage.setItem('goals', JSON.stringify(goals));
-  }, [goals]);
+    loadData();
+  }, []);
 
-  const addTransaction = (transaction) => {
-    setTransactions([transaction, ...transactions]);
+  // Add transaction to API and update local state
+  const addTransaction = async (transaction) => {
+    try {
+      // Convert date to ISO format for backend
+      const transactionForBackend = {
+        ...transaction,
+        date: formatDateToISO(transaction.date)
+      };
+      
+      const newTransaction = await apiCall('/api/transactions', {
+        method: 'POST',
+        body: JSON.stringify(transactionForBackend),
+      });
+      
+      // Format the returned transaction date for frontend
+      const formattedTransaction = {
+        ...newTransaction,
+        date: formatDateFromISO(newTransaction.date)
+      };
+      
+      setTransactions(prev => [formattedTransaction, ...prev]);
+      setError(null);
+      return formattedTransaction;
+    } catch (err) {
+      console.error('Error adding transaction:', err);
+      setError(err.message);
+      throw err;
+    }
   };
 
-  const addGoal = (goal) => {
-    setGoals([goal, ...goals]);
-  }
+  // Add goal to API and update local state
+  const addGoal = async (goal) => {
+    try {
+      const newGoal = await apiCall('/api/goals', {
+        method: 'POST',
+        body: JSON.stringify(goal),
+      });
+      
+      setGoals(prev => [newGoal, ...prev]);
+      setError(null);
+      return newGoal;
+    } catch (err) {
+      console.error('Error adding goal:', err);
+      setError(err.message);
+      throw err;
+    }
+  };
 
-  const deleteTransaction = (transactionId) => {
-    // 1. Find the transaction to be deleted
-    const transactionToDelete = transactions.find(t => t.id === transactionId);
+  // Delete transaction (you'll need to add DELETE endpoint to your backend)
+  const deleteTransaction = async (transactionId) => {
+    try {
+      // Find the transaction to be deleted
+      const transactionToDelete = transactions.find(t => t._id === transactionId);
+      
+      if (!transactionToDelete) return;
 
-    if (!transactionToDelete) return; // Exit if transaction not found
+      // Delete from API first
+      await apiCall(`/api/transactions/${transactionId}`, {
+        method: 'DELETE',
+      });
 
-    // 2. Check if it was a contribution to a goal
-    if (transactionToDelete.goalId) {
-      // 3. If yes, "refund" the amount from the goal
-      const updatedGoals = goals.map(goal => {
-        if (goal.id === transactionToDelete.goalId) {
-          return {
-            ...goal,
-            currentAmount: goal.currentAmount - transactionToDelete.amount
-          };
+      // If it was a contribution to a goal, update the goal
+      if (transactionToDelete.goalId) {
+        const updatedGoals = goals.map(goal => {
+          if (goal._id === transactionToDelete.goalId) {
+            return {
+              ...goal,
+              currentAmount: goal.currentAmount - transactionToDelete.amount
+            };
+          }
+          return goal;
+        });
+        setGoals(updatedGoals);
+        
+        // You might also want to update the goal in the backend
+        const goalToUpdate = updatedGoals.find(g => g._id === transactionToDelete.goalId);
+        if (goalToUpdate) {
+          await apiCall(`/api/goals/${goalToUpdate._id}`, {
+            method: 'PUT',
+            body: JSON.stringify({ currentAmount: goalToUpdate.currentAmount }),
+          });
         }
-        return goal;
-      });
-      setGoals(updatedGoals);
+      }
+
+      // Update local state
+      setTransactions(prev => prev.filter(t => t._id !== transactionId));
+      setError(null);
+    } catch (err) {
+      console.error('Error deleting transaction:', err);
+      setError(err.message);
+      throw err;
     }
+  };
+
+  // Delete goal and related transactions
+  const deleteGoal = async (goalId) => {
+    try {
+      // Find all transactions related to this goal
+      const relatedTransactions = transactions.filter(t => t.goalId === goalId);
+      
+      // Delete the goal from API first
+      await apiCall(`/api/goals/${goalId}`, {
+        method: 'DELETE',
+      });
 
-    // 4. Finally, delete the transaction itself
-    setTransactions(prev => prev.filter(t => t.id !== transactionId));
+      // Delete all related transactions from API
+      for (const transaction of relatedTransactions) {
+        await apiCall(`/api/transactions/${transaction._id}`, {
+          method: 'DELETE',
+        });
+      }
+
+      // Update local state - remove goal
+      setGoals(prev => prev.filter(g => g._id !== goalId));
+      
+      // Update local state - remove related transactions
+      setTransactions(prev => prev.filter(t => t.goalId !== goalId));
+      
+      setError(null);
+    } catch (err) {
+      console.error('Error deleting goal:', err);
+      setError(err.message);
+      throw err;
+    }
   };
 
+  // Calculate income and expense from current transactions
   const income = transactions
     .filter(t => t.type === 'Income')
     .reduce((sum, t) => sum + Number(t.amount), 0);
@@ -72,20 +250,31 @@ export const TransactionProvider = ({ children }) => {
     .filter(t => t.type === 'Expense')
     .reduce((sum, t) => sum + Number(t.amount), 0);
 
-  const contributeToGoal = (goalId, amount) => {
+  // Contribute to goal
+  const contributeToGoal = async (goalId, amount) => {
+    try {
       let goalName = '';
-
+      
+      // Update goal locally first
       const updatedGoals = goals.map(goal => {
-        if (goal.id === goalId) {
-          goalName = goal.name; 
+        if (goal._id === goalId) {
+          goalName = goal.name;
           return { ...goal, currentAmount: goal.currentAmount + amount };
         }
         return goal;
       });
+      
       setGoals(updatedGoals);
 
+      // Update goal in backend
+      const goalToUpdate = updatedGoals.find(g => g._id === goalId);
+      await apiCall(`/api/goals/${goalId}`, {
+        method: 'PUT',
+        body: JSON.stringify({ currentAmount: goalToUpdate.currentAmount }),
+      });
+
+      // Create contribution transaction
       const contributionTransaction = {
-        id: Date.now(),
         note: `Contribution to "${goalName}"`,
         amount: amount,
         type: 'Expense',
@@ -93,13 +282,36 @@ export const TransactionProvider = ({ children }) => {
         date: getTodaysDate(),
         goalId: goalId
       };
-      addTransaction(contributionTransaction);
-    };
+
+      await addTransaction(contributionTransaction);
+      setError(null);
+    } catch (err) {
+      console.error('Error contributing to goal:', err);
+      setError(err.message);
+      throw err;
+    }
+  };
+
+  const value = {
+    transactions,
+    goals,
+    loading,
+    error,
+    setTransactions,
+    setGoals,
+    addTransaction,
+    addGoal,
+    deleteTransaction,
+    deleteGoal,
+    contributeToGoal,
+    income,
+    expense,
+    fetchTransactions,
+    fetchGoals,
+  };
 
   return (
-    <TransactionContext.Provider
-      value={{ transactions, setTransactions, addTransaction, income, expense, deleteTransaction, goals, setGoals, addGoal, contributeToGoal }}
-    >
+    <TransactionContext.Provider value={value}>
       {children}
     </TransactionContext.Provider>
   );

From 171e2cc37594d5b2eb6d5d2702c25c318bda7fd7 Mon Sep 17 00:00:00 2001
From: harish-pasupuleti <133561454+harish-pasupuleti@users.noreply.github.com>
Date: Fri, 1 Aug 2025 01:14:43 +0530
Subject: [PATCH 2/3] Update .env

---
 Backend/.env | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Backend/.env b/Backend/.env
index 2f03c1c..76894b3 100644
--- a/Backend/.env
+++ b/Backend/.env
@@ -1,3 +1,3 @@
-MONGODB_URL="mongodb+srv://harishpasupuleti18:dltvMaOlYvh7iEwd@cluster0.k21edhb.mongodb.net/?retryWrites=true&w=majority&appName=Cluster0"
+MONGODB_URL="mongodb+srv://@cluster0.k21edhb.mongodb.net/?retryWrites=true&w=majority&appName=Cluster0"
 JWT_SECRET=123
-Frontend_URL=http://localhost:5173
\ No newline at end of file
+Frontend_URL=http://localhost:5173

From ae5d4cab2e1c8ad55fbefede7ec5d34f6996f864 Mon Sep 17 00:00:00 2001
From: harish-pasupuleti <133561454+harish-pasupuleti@users.noreply.github.com>
Date: Fri, 8 Aug 2025 19:15:32 +0530
Subject: [PATCH 3/3] Delete Backend/.env

---
 Backend/.env | 3 ---
 1 file changed, 3 deletions(-)
 delete mode 100644 Backend/.env

diff --git a/Backend/.env b/Backend/.env
deleted file mode 100644
index 76894b3..0000000
--- a/Backend/.env
+++ /dev/null
@@ -1,3 +0,0 @@
-MONGODB_URL="mongodb+srv://@cluster0.k21edhb.mongodb.net/?retryWrites=true&w=majority&appName=Cluster0"
-JWT_SECRET=123
-Frontend_URL=http://localhost:5173