UNPKG

1.48 kBTypeScriptView Raw
1/// <reference types="node" />
2import { Readable } from 'stream';
3import { UrlWithStringQuery } from 'url';
4/**
5 * Async function that returns a `stream.Readable` instance to the
6 * callback function that will output the contents of the given URI.
7 *
8 * For caching purposes, you can pass in a `stream` instance from a previous
9 * `getUri()` call as a `cache: stream` option, and if the destination has
10 * not changed since the last time the endpoint was retreived then the callback
11 * will be invoked with an Error object with `code` set to "ENOTMODIFIED" and
12 * `null` for the "stream" instance argument. In this case, you can skip
13 * retreiving the file again and continue to use the previous payload.
14 *
15 * @param {String} uri URI to retrieve
16 * @param {Object} opts optional "options" object
17 * @param {Function} fn callback function
18 * @api public
19 */
20declare function getUri(uri: string, fn: getUri.GetUriCallback): void;
21declare function getUri(uri: string, opts: getUri.GetUriOptions, fn: getUri.GetUriCallback): void;
22declare function getUri(uri: string, opts?: getUri.GetUriOptions): Promise<Readable>;
23declare namespace getUri {
24 interface GetUriOptions {
25 cache?: Readable;
26 }
27 type GetUriCallback = (err?: Error | null, res?: Readable) => void;
28 type GetUriProtocol = (parsed: UrlWithStringQuery, opts: getUri.GetUriOptions) => Promise<Readable>;
29 const protocols: {
30 [key: string]: getUri.GetUriProtocol;
31 };
32}
33export = getUri;