discord.js/src/client/rest/RequestHandlers/RequestHandler.js

/**
 * A base class for different types of rate limiting handlers for the REST API.
 * @private
 */
class RequestHandler {
  /**
   * @param {RESTManager} restManager The REST manager to use
   */
  constructor(restManager) {
    /**
     * The RESTManager that instantiated this RequestHandler
     * @type {RESTManager}
     */
    this.restManager = restManager;

    /**
     * A list of requests that have yet to be processed.
     * @type {APIRequest[]}
     */
    this.queue = [];
  }

  /**
   * Whether or not the client is being rate limited on every endpoint.
   * @type {boolean}
   * @readonly
   */
  get globalLimit() {
    return this.restManager.globallyRateLimited;
  }

  set globalLimit(value) {
    this.restManager.globallyRateLimited = value;
  }

  /**
   * Push a new API request into this bucket
   * @param {APIRequest} request The new request to push into the queue
   */
  push(request) {
    this.queue.push(request);
  }

  /**
   * Attempts to get this RequestHandler to process its current queue
   */
  handle() {} // eslint-disable-line no-empty-function
}

module.exports = RequestHandler;