Controller

The main function of a controller is to handle user requests. A controller class corresponds to different function implementations.

A simple controller example:

export class HomeController extends FireCatController {

  @Get('/')
  @Request()
  index(ctx: Context) {
    ctx.body = 'hello world'
  }

  @Get('/foo')
  @Request()
  foo(ctx: Context) {
    ctx.body = 'bar'
  }

}

Controllers are generally used with various decorators to easily implement different functions. You can see detailed instructions in the Decorators section.

Bind to Routes

After implementing the controller's functions, bind the controller to the routes.

import {FireCatRouter} from "fire-cat";
import {HomeController} from "@/controller/home";

const fireRouter = new FireCatRouter()

fireRouter.controller('/', new HomeController())

Custom Controllers

Custom controllers allow you to implement various custom functions on the original controllers. Ps: In the FireCat initialized project, basic custom controllers are provided in the mixin directory.

For example, unifying the return format:

import {FireCatController} from "fire-cat";

export class AppController extends FireCatController {
  success(props: object) {
    return {
      code: 200,
      data: props
    }
  }
  error(props: object) {
    return {
      code: 500,
      data: props
    }
  }
}

Then you can use it happily:

class MyController extends AppController {
  @Post('/hello')
  hello(ctx: Context) {
    ctx.body = this.success({
      list: [1, 2, 3]
    })
  }
}