Skip to main content
Version: v2

Error-handling

Customizing the Error Handler​

In version 1, we had to provide an option to createApp to use AppController.handleError. This is no longer necessary.

// Before
const app = createApp(AppController, {
  methods: {
    handleError: true
  }
});

// After
const app = await createApp(AppController);

Errors in Hook Post Functions​

In version 1, hook post functions were skipped when an error was thrown or rejected. In version 2, this is no longer the case and the response passed to the post functions is an HttpResponseInternalServerError instance.

class Controller {

  @Get('/products')
  @Hook(() => response => {
    // Not executed in version 1.
    // Executed in version 2 and the response is an `HttpResponseInternalServerError` instance.
    console.log(response);
  })
  readProducts() {
    throw new Error();
  }

}

New features​

The IAppController interface​

The AppController can implement the IAppController interface. In this way, we make sure that the optional methods init and handleError are correctly implemented as well as the subControllers property.

Error details and HttpResponseInternalServerError​

The default HttpResponseInternalServerError instance returned by the error handler when an error is thrown or rejected has two new properties: the error and the ctx.