A reference to the current application

The cookies object

The request object

The response object

The object to pass state to front-end views. This can be typed by supplying the generic state argument when creating a new app. For example:

  const app = new Application<{ foo: string }>();

Or can be contextually inferred based on setting an initial state object:

  const app = new Application({ state: { foo: "bar" } });

Asserts the condition and if the condition fails, creates an HTTP error with the provided status (which defaults to 500). The error status by default will be set on the .response.status.

Create and throw an HTTP Error, which can be used to pass status information which can be caught by other middleware to send more meaningful error messages back to the client. The passed error status will be set on the .response.status by default as well.