create a barbershop booking app in javascript

To create a barbershop booking app in JavaScript, we can follow the below high-level steps:

Plan the features required for the booking app, such as creating appointments, viewing available appointments, and canceling appointments.
Set up the server using Node.js and Express.js. Express.js will help us serve our web pages and create API endpoints that allow us to interact with the database.
Create a MongoDB database to store the bookings.
Create the front-end of the web application using HTML, CSS, and JavaScript.
Implement the functionality using JavaScript, including creating a booking, checking for availability, and canceling bookings.

Here's an example of how we can create an API endpoint using Express.js and save a booking to our MongoDB database:


index.tsx
const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');

const app = express();

// Set up database connection
mongoose.connect('mongodb://localhost:27017/barbershop', { useNewUrlParser: true });

// Create schema for bookings
const bookingSchema = new mongoose.Schema({
  customerName: String,
  date: Date,
  time: String,
});

// Create model for bookings
const Booking = mongoose.model('Booking', bookingSchema);

// Allow JSON requests to be parsed
app.use(bodyParser.json());

// Create endpoint to save new bookings
app.post('/bookings', async (req, res) => {
  try {
    const { customerName, date, time } = req.body;

    // Check if the booking already exists
    const existingBooking = await Booking.findOne({ date, time });
    if (existingBooking) {
      return res.status(409).send('Booking already exists');
    }

    // Create new booking
    const booking = new Booking({ customerName, date, time });
    await booking.save();

    return res.status(201).send('Booking created');
  } catch (err) {
    return res.status(500).send(err.message);
  }
});

app.listen(3000, () => console.log('Server listening on port 3000'));
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This is just an example to get you started, but there's a lot more that goes into creating a complete booking app. With dedication and some work, you can create a great booking app for your barbershop.

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