feat(Rest): optional ratelimit errors (#5659)

Co-authored-by: SpaceEEC <spaceeec@yahoo.com>

src/rest/RateLimitError.js

@@ -0,0 +1,55 @@
+'use strict';
+
+/**
+ * Represents a RateLimit error from a request.
+ * @extends Error
+ */
+class RateLimitError extends Error {
+  constructor({ timeout, limit, method, path, route, global }) {
+    super(`A ${global ? 'global ' : ''}rate limit was hit on route ${route}`);
+
+    /**
+     * The name of the error
+     * @type {string}
+     */
+    this.name = 'RateLimitError';
+
+    /**
+     * Time until this rate limit ends, in ms
+     * @type {number}
+     */
+    this.timeout = timeout;
+
+    /**
+     * The HTTP method used for the request
+     * @type {string}
+     */
+    this.method = method;
+
+    /**
+     * The path of the request relative to the HTTP endpoint
+     * @type {string}
+     */
+    this.path = path;
+
+    /**
+     * The route of the request relative to the HTTP endpoint
+     * @type {string}
+     */
+    this.route = route;
+
+    /**
+     * Whether this rate limit is global
+     * @type {boolean}
+     */
+    this.global = global;
+
+    /**
+     * The maximum amount of requests of this end point
+     * @type {number}
+     */
+    this.limit = limit;
+  }
+}
+
+module.exports = RateLimitError;