@typespec/ts-http-runtime
Version:
Isomorphic client library for making HTTP requests in node.js and browser.
38 lines • 1.32 kB
JavaScript
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
import { isWebReadableStream } from "./typeGuards.js";
/**
* Drain the content of the given ReadableStream into a Blob.
* The blob's content may end up in memory or on disk dependent on size.
*/
function drain(stream) {
return new Response(stream).blob();
}
async function toBlobPart(source) {
if (source instanceof Blob || source instanceof Uint8Array) {
return source;
}
if (isWebReadableStream(source)) {
return drain(source);
}
else {
throw new Error("Unsupported source type. Only Blob, Uint8Array, and ReadableStream are supported in browser.");
}
}
/**
* Utility function that concatenates a set of binary inputs into one combined output.
*
* @param sources - array of sources for the concatenation
* @returns - in Node, a (() =\> NodeJS.ReadableStream) which, when read, produces a concatenation of all the inputs.
* In browser, returns a `Blob` representing all the concatenated inputs.
*
* @internal
*/
export async function concat(sources) {
const parts = [];
for (const source of sources) {
parts.push(await toBlobPart(typeof source === "function" ? source() : source));
}
return new Blob(parts);
}
//# sourceMappingURL=concat.common.js.map