soundcloud-sync/dist/services/getClient.js

Sync your SoundCloud likes to local files

import webAgent from "./webAgent.js";
import logger from "../helpers/logger.js";
const patterns = {
    version: /__sc_version="([^"]+)/,
    scripts: /(?<=<script crossorigin src=")[^"]+\.js(?=")/g,
    urn: /soundcloud:users:(\d+)/,
    clientId: /,client_id:"([^"]+)"/,
};
/**
 * Retrieves SoundCloud client credentials by scraping a user's profile page.
 *
 * The function:
 * 1. Fetches the user's profile page
 * 2. Extracts the API version and client URN
 * 3. Finds and fetches the script containing the client ID
 *
 * @param profileName - SoundCloud username (e.g., 'realies')
 * @returns Client object with ID, version, and URN for API requests
 * @throws Error if any required data cannot be found
 */
export default async function getClient(profileName) {
    logger.debug('Starting getClient function');
    const [version, scriptUrls, urn] = (await webAgent(`https://soundcloud.com/${profileName}/likes`, [patterns.version, patterns.scripts, patterns.urn]));
    if (!version?.[0] || !scriptUrls?.length || !urn?.[0]) {
        throw new Error('Failed to extract required data from profile page');
    }
    // Search scripts from last to first as client ID is usually in the last script
    const scriptUrlsReversed = scriptUrls.slice().reverse();
    for await (const url of scriptUrlsReversed) {
        const [clientId] = (await webAgent(url, [patterns.clientId]));
        if (clientId?.[0]) {
            const client = { id: clientId[0], version: version[0], urn: urn[0] };
            logger.debug('Client found', { client });
            return client;
        }
    }
    throw new Error('Failed to find client ID in any script');
}