@trifrost/core/esm/utils/Stream.js

Blazingly fast, runtime-agnostic server framework for modern edge and node environments

/**
 * Verifies that an unknown stream is file-stream-like for usage in new Response
 *
 * @param {unknown} stream
 */
export function verifyFileStream(stream) {
    if (stream instanceof ReadableStream ||
        stream instanceof Uint8Array ||
        stream instanceof ArrayBuffer ||
        (typeof Blob !== 'undefined' && stream instanceof Blob) ||
        typeof stream === 'string')
        return;
    const type = Object.prototype.toString.call(stream);
    throw new Error(`verifyFileStream: Unsupported stream type (${type}) for response`);
}