cloudflare--workers-sdk/packages/workers-shared/utils/responses.ts

export class OkResponse extends Response {
	static readonly status = 200;

	constructor(body: BodyInit | null, init?: ResponseInit) {
		super(body, {
			...init,
			status: OkResponse.status,
		});
	}
}

export class NotFoundResponse extends Response {
	static readonly status = 404;

	constructor(...[body, init]: ConstructorParameters<typeof Response>) {
		super(body, {
			...init,
			status: NotFoundResponse.status,
			statusText: "Not Found",
		});
	}
}

// A magical response type which is used to signal that a user worker should be invoked if one is present.
export class NoIntentResponse extends NotFoundResponse {
	constructor() {
		super();
	}
}

export class MethodNotAllowedResponse extends Response {
	static readonly status = 405;

	constructor(...[body, init]: ConstructorParameters<typeof Response>) {
		super(body, {
			...init,
			status: MethodNotAllowedResponse.status,
			statusText: "Method Not Allowed",
		});
	}
}

export class InternalServerErrorResponse extends Response {
	static readonly status = 500;

	constructor(_: Error, init?: ResponseInit) {
		super(null, {
			...init,
			status: InternalServerErrorResponse.status,
		});
	}
}

export class NotModifiedResponse extends Response {
	static readonly status = 304;

	constructor(...[_body, init]: ConstructorParameters<typeof Response>) {
		super(null, {
			...init,
			status: NotModifiedResponse.status,
			statusText: "Not Modified",
		});
	}
}

export class MovedPermanentlyResponse extends Response {
	static readonly status = 301;

	constructor(location: string, init?: ResponseInit) {
		super(null, {
			...init,
			status: MovedPermanentlyResponse.status,
			statusText: "Moved Permanently",
			headers: {
				...init?.headers,
				Location: location,
			},
		});
	}
}

export class FoundResponse extends Response {
	static readonly status = 302;

	constructor(location: string, init?: ResponseInit) {
		super(null, {
			...init,
			status: FoundResponse.status,
			statusText: "Found",
			headers: {
				...init?.headers,
				Location: location,
			},
		});
	}
}

export class SeeOtherResponse extends Response {
	static readonly status = 303;

	constructor(location: string, init?: ResponseInit) {
		super(null, {
			...init,
			status: SeeOtherResponse.status,
			statusText: "See Other",
			headers: {
				...init?.headers,
				Location: location,
			},
		});
	}
}

export class TemporaryRedirectResponse extends Response {
	static readonly status = 307;

	constructor(location: string, init?: ResponseInit) {
		super(null, {
			...init,
			status: TemporaryRedirectResponse.status,
			statusText: "Temporary Redirect",
			headers: {
				...init?.headers,
				Location: location,
			},
		});
	}
}

export class PermanentRedirectResponse extends Response {
	static readonly status = 308;

	constructor(location: string, init?: ResponseInit) {
		super(null, {
			...init,
			status: PermanentRedirectResponse.status,
			statusText: "Permanent Redirect",
			headers: {
				...init?.headers,
				Location: location,
			},
		});
	}
}