Parking lot

Assumption

• Scenario: free parking lot without human intervention.
• parking lot:
  • can create unlimited parking lots.
  • can set the number of slots in each parking lot.
• car
  • the car must park at the same slot size only.
• size:
  • slots sizes: small, medium, large.
  • car sizes: small, medium, large.
• pricing: free.

Running the API

Development

• Install Node.js 15.12.0
• Update the environment variables in .env file (you can see the example in .env.example)
• Run npm install
• Run npm run start:dev

Production

• Install Docker
• Install Docker Compose
• Run docker-compose up -d

Test Scripts

Tests are written using Jest and can be run using

# unit tests
$ npm run test

# e2e tests
$ npm run test:e2e

# test coverage
$ npm run test:cov

for production you have to run docker exec -it parkinglot_api sh before running test scripts

Document APIs

• Swagger: Once the application is running you can visit http://localhost:3000/api to see the Swagger interface.
• Postman: https://documenter.getpostman.com/view/1178609/Uyr5oK1W

MongoDB Databases

 - parkingLots
        - _id
        - rank
        - name
        - slots
          - smalls
            - slotId
            - isAvailable
          - mediums
            - slotId
            - isAvailable
          - larges
            - slotId
            - isAvailable
        - createdAt
 - tickets
        - _id
        - parkingLotId
        - slotId
        - plateNumber
        - carSize
        - exitAt
        - createdAt

API Endpoints

• POST /parkinglot to create parking lot

• POST /car/park to park a car in a parking lot

• POST /car/exit to check out a parking

• GET /car/status to get available slots of all parking slots

• GET /ticket?vehicleSize=large to get ticket

TODOs

• E2E test
• Unit test
• JWT for Authentication
• Example for client use
• Dockerfile for development

Reference

• The official Nestjs documentation

• Testing