Where to Start: File Creation

Examples shown using TypeORM (another alternative is to use Mongoose for example)

• Create module folders, e.g.:
  • notifications: dtos, infra (typeorm [schemas]), repositories, services
  • Final structure:

  notifications
  └───dtos
  └───infra
  |   └───typeorm
  |         └───repositories
  |         └───schemas
  └───repositories
  └───services
  

• Create entity/schema file, e.g.:
  • In modules/notifications/infra/typeorm/schemas/
  • Notifications.ts
• Create repository interface, e.g.:
  • In modules/notifications/repositories/
  • INotificationsRepository.ts
• Create DTO (if your repository receives more than 1 data), e.g.:
  • In modules/notifications/dtos/
  • ICreateNotificationDTO.ts
• Create service, e.g.:
  • In modules/appointments/services/
  • ListProvidersService.ts
• Create TypeORM repository, e.g.:
  • In modules/notifications/infra/typeorm/repositories/
  • NotificationsRepository.ts
• Register NotificationsRepository.ts in shared/container/index.ts for dependency injection

Using MongoDB with Docker

• docker run --name mongodb -p 27017:27017 -d -t mongo
• [MongoDB Compass Community]:
  • "New connection"
  • mongodb://localhost:27017 OR
  • mongodb://192.168.99.100:27017 (using docker with Windows)
• yarn add mongodb

Installing Library for Route Data Validation

• yarn add celebrate [yarn add -D @types/hapi__joi]

Using Redis (to cache Queries) with Docker

• docker run --name redis -p 6379:6379 -d -t redis:alpine
• yarn add ioredis [@types/ioredis]

Before Production

• Create .env and .env.example
• Ignore ormconfig.json and .env in .gitignore

Security: Avoiding Brute Force/DDoS Attack

• node-rate-limiter-flexible: yarn add rate-limiter-flexible
• Using redis to save IP and number of requests in db (default save behavior: saved in memory): yarn add redis [@types/redis]

Troubleshooting

• Error in Test Files:
  • Remember to change the dates (if necessary) in test files
• Couldn't download redis:alpine:
  • Run:

  docker-machine ssh default
  sudo vi /etc/resolv.conf
  

  • Press Insert to edit file
  • Change nameserver to 8.8.8.8
  • Hit ESC and Shift + Z to save file
  • Restart docker service: docker-machine restart