cinema-tickets-js

This was a javascript assessment project assigned by DWP. I was tasked to make working cinema ticket service.

Contents

• Task Rules
• Installation
• Screenshot

Task Rules

• There are 3 types of tickets i.e. Infant, Child, and Adult.

• The ticket prices are based on the type of ticket (see table below).

• The ticket purchaser declares how many and what type of tickets they want to buy.

• Multiple tickets can be purchased at any given time.

• Only a maximum of 20 tickets that can be purchased at a time.

• Infants do not pay for a ticket and are not allocated a seat. They will be sitting on an Adult's lap.

• Child and Infant tickets cannot be purchased without purchasing an Adult ticket.

Ticket Type	Price
INFANT	£0
CHILD	£10
ADULT	£20

• There is an existing TicketPaymentService responsible for taking payments.

• There is an existing SeatReservationService responsible for reserving seats.

Constraints

• The TicketService interface CANNOT be modified. (For Java solution only)

• The code in the thirdparty.* packages CANNOT be modified.

• The TicketTypeRequest SHOULD be an immutable object.

Assumptions

You can assume:

• All accounts with an id greater than zero are valid. They also have sufficient funds to pay for any no of tickets.

• The TicketPaymentService implementation is an external provider with no defects. You do not need to worry about how the actual payment happens.

• The payment will always go through once a payment request has been made to the TicketPaymentService.

• The SeatReservationService implementation is an external provider with no defects. You do not need to worry about how the seat reservation algorithm works.

• The seat will always be reserved once a reservation request has been made to the SeatReservationService.

Your Task

Provide a working implementation of a TicketService that:

• Considers the above objective, business rules, constraints & assumptions.

• Calculates the correct amount for the requested tickets and makes a payment request to the TicketPaymentService.

• Calculates the correct no of seats to reserve and makes a seat reservation request to the SeatReservationService.

• Rejects any invalid ticket purchase requests. It is up to you to identify what should be deemed as an invalid purchase request.”

Installation

git clone https://github.com/Abid-dev/cinema-tickets-js.git
cd cinema-tickets-js
npm install

To run the program locally on your browser, run the following command:

node app.js

You should be able to view and play around with it on your localhost port 3000.

Screenshot