method CloudflareWorkersHttpAdapter.prototype.setHandler CloudflareWorkersHttpAdapter.prototype.setHandler(handler: (request: IRequest) => IResponse | Promise<IResponse>): void Installs the framework request handler. Called once at start() time, after the middleware pipeline compiles and before any fetch or listen. Parameters handler: (request: IRequest) => IResponse | Promise<IResponse> Handles a normalized request, produces a response Return Type void