Guide

Models

Models are used throughout the api as payloads and responses. Payloads are sent from users to the api. Responses are sent from the api to users.

my-first-api
│   ...
│
│
│
│
│
└src
    │
    │
    └models
    │   │   index.ts
    │
    │
    │
    │
    │
    │
    └...

Models are allowed to be organized into submodules and subdirectories, but each defined model must be exported directly from ./src/models/index.ts. Only named exports and not default exports are allowed.

./src/models/foos/index.ts

import { RequestPayload, MalformedPayloadError } from 'design-first';
import { IsInt, Min } from 'class-validator';

export class Foo { ... }

export class ShowFooPayload {
  constructor(props: RequestPayload) {
    try {
      this.fooID = parseInt(props.params.fooID);
    } catch (e) {
      throw new MalformedPayloadError("fooID must be an integer");
    }
  }

  @IsInt()
  @Min(0)
  public fooID: number;
}

./src/models/index.ts

// note: all of your models should be exported, here

export * from './foos';

← Middleware design.json →
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