Function middlewareProvider

Creates a "middleware provider", which is a middleware that can configure/extend the container before the application uses it.

Example

class MyServiceWithMiddleware {
    constructor(private readonly responsesBuilder: ResponsesBuilder) {}
    getMiddleware() {
      return (_, res) => {
        this.responsesBuilder.json({ res, data: { message } });
      };
    }
  }

  const myMiddlewareProvider = middlewareProvider((app) => {
    app.set(
      'myMiddleware',
      () => new MyServiceWithMiddleware(app.get('responsesBuilder')),
    );
    return middleware(() =>
      app.get<MyServiceWithMiddleware>('myMiddleware').getMiddleware(),
    );
  });
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