Backend For Frontend (BFF)

Concepts Used

• BFF Pattern
• Modular Monolith
  • Bounded Context
• GraphQL
• Filters
• Dependency Injection
• Swagger
• Docker
• Docker compose
• REDIS Queue
  • bull
• Observability
  • Open Telemetry
  • Honeycomb.io
• Calling another APIs
  • Axios

Modular Monolith

This is architecture design journey

The construction of the application

Installation

Node version used is v16.20.0, so in your terminal run the follow:

npm install or yarn

To start the project

npm run start:dev

Running with Swagger

Once the application is running you can visit http://localhost:3000/api to see the Swagger interface.

See here for more information.

Running with GraphQL

Once the application is running you can visit http://localhost:3000/graphql to see the GraphQL Playground interface.

See here for more information.

Examples

Create

mutation createTest {
  create(
    data: {
      name: "test"
      age: 1
      breed: "raca"
      photo: "https://example-image.jpg"
    }
  ) {
    name
    age
    breed
    photo
  }
}

Get

query test {
  findOne(id: 0) {
    name,
    age,
    photo
  }
}

Docker

Generate image

docker build -t bff-example-image .

Run container

docker run --name bff-example-container -dp 127.0.0.1:3000:3000 bff-example-image

Docker Compose

Up

docker-compose up

Down

docker-compose down