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server.js
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server.js
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const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const ejs = require('ejs');
const app = express();
const port = process.env.PORT || 3000;
// MongoDB connection
mongoose.connect('mongodb://localhost:27017/moneyTrackerDB', { useNewUrlParser: true, useUnifiedTopology: true });
// Define Transaction schema
const transactionSchema = {
description: String,
amount: Number,
type: String, // 'expense' or 'income'
date: {
type: Date,
default: Date.now
}
};
const Transaction = mongoose.model('Transaction', transactionSchema);
// Middleware
app.use(bodyParser.urlencoded({ extended: true }));
app.set('view engine', 'ejs');
app.use(express.static('public'));
// Routes
app.get('/', (req, res) => {
// Fetch all transactions from the database
Transaction.find({})
.exec() // Use exec() to execute the query
.then(transactions => {
// Calculate the sums of income and expenses
const income = transactions.reduce((total, transaction) => {
return transaction.type === 'income' ? total + transaction.amount : total;
}, 0);
const expenses = transactions.reduce((total, transaction) => {
return transaction.type === 'expense' ? total + transaction.amount : total;
}, 0);
res.render('index', { transactions, income, expenses });
})
.catch(err => {
console.error(err);
res.status(500).send('Internal Server Error');
});
});
app.get('/add-transaction', (req, res) => {
res.render('add-transaction');
});
app.post('/add-transaction', (req, res) => {
// Create a new transaction and save it to the database
const newTransaction = new Transaction({
description: req.body.description,
amount: req.body.amount,
type: req.body.type
});
newTransaction.save()
.then(() => {
res.redirect('/');
})
.catch(err => {
console.error(err);
res.status(500).send('Internal Server Error');
});
});
app.get('/overview', (req, res) => {
// Fetch all transactions from the database
Transaction.find({})
.exec() // Use exec() to execute the query
.then(transactions => {
res.render('overview', { transactions: transactions });
})
.catch(err => {
console.error(err);
res.status(500).send('Internal Server Error');
});
});
app.get('/edit-transaction/:transactionId', (req, res) => {
const transactionId = req.params.transactionId;
// Find a specific transaction by ID in the database
Transaction.findOne({ _id: transactionId }).exec()
.then(transaction => {
res.render('edit-transaction', { transaction: transaction });
})
.catch(err => {
console.error(err);
res.status(500).send('Internal Server Error');
});
});
app.post('/edit-transaction/:transactionId', (req, res) => {
const transactionId = req.params.transactionId;
// Update the specified transaction in the database
Transaction.updateOne(
{ _id: transactionId },
{ $set: { description: req.body.description, amount: req.body.amount, type: req.body.type } }
).exec()
.then(() => {
res.redirect('/overview');
})
.catch(err => {
console.error(err);
res.status(500).send('Internal Server Error');
});
});
app.get('/delete-transaction/:transactionId', (req, res) => {
const transactionId = req.params.transactionId;
// Delete the specified transaction from the database
Transaction.deleteOne({ _id: transactionId }).exec()
.then(() => {
res.redirect('/overview');
})
.catch(err => {
console.error(err);
res.status(500).send('Internal Server Error');
});
});
// Start the server
app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});