app.js

const express = require('express');
const app = express();
const cors = require('cors');
const mongoose = require('mongoose');
const expenseRouter = require('./Routers/expense.router');
const authRouter = require('./Routers/auth.router');
const analyticsRouter = require('./Routers/analytics.router');
const accountRouter = require('./Routers/account.router');
const errorHandler = require('./Middleware/error-handler');
const dayjs = require('dayjs')
const rateLimiter = require('./Middleware/rate-limiter');

app.use(cors({
    origin: '*'
}));
app.use(express.json()) // for parsing application/json
app.use(express.urlencoded({ extended: true })) // for parsing application/x-www-form-urlencoded
require("dotenv").config();

const url = process.env.DB_URL;

const connectionParams = {
    useNewUrlParser: true
}

async function ConnectToDB() {
    await mongoose.connect(url, connectionParams)
        .then(() => console.log('Connected to MongoDB'))
        .catch(() => console.log('Connection Failed'));
}

ConnectToDB();

app.get('/', (req, res) => {
    res.status(200).send("Server is Live");
})

// request testing
app.use((req, res, next) => {
    console.log(`Incoming Request at ${dayjs().hour()}:${dayjs().minute()}\n`);
    next();
})

// rate limiter
app.use(rateLimiter);

// API Routes
app.use('/auth', authRouter);
app.use('/expenses', expenseRouter);
app.use('/profile', analyticsRouter);
app.use('/account', accountRouter);

// error-handling middlewaqre
app.use(errorHandler);

module.exports = {
    app,
    url,
    connectionParams,
    // client
};