@fly/cdn/lib/middleware/auto-webp.d.ts

Fly's TypeScript CDN

import { FetchFunction } from "../fetch";
/**
 * Automatically encodes images as webp for supported clients.
 * This would apply to requests with 'image/webp' in the accept header
 * and 'image/jpeg' or 'image/png' in the response type from origin.
 *
 * Example:
 *
 * ```typescript
 * import { origin } from "./src/backends";
 * import { autoWebp } from "./src/middleware/auto-webp";
 *
 * const backend = origin({
 *  origin: "https://fly.io/",
 *  headers: {host: "fly.io"}
 * })
 *
 * const images = autoWebp(backend);
 *
 * fly.http.respondWith(images);
 * ```
 */
export declare function autoWebp(fetch: FetchFunction): FetchFunction;
export declare function webpAllowed(req: Request): boolean;