Comply to the new Rate Limit Headers hammerandchisel/discord-api-docs#108

src/client/rest/RESTManager.js

@@ -12,6 +12,7 @@ class RESTManager {
     this.userAgentManager = new UserAgentManager(this);
     this.methods = new RESTMethods(this);
     this.rateLimitedEndpoints = {};
+    this.globallyRateLimited = false;
   }
 
   push(handler, apiRequest) {

src/client/rest/RequestHandlers/RequestHandler.js

@@ -17,6 +17,18 @@ module.exports = class RequestHandler {
     this.queue = [];
   }
 
+  /**
+   * Whether or not the client is being rate limited on every endpoint.
+   * @type {Boolean}
+   */
+  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

src/client/rest/RequestHandlers/Sequential.js

@@ -36,7 +36,7 @@ module.exports = class SequentialRequestHandler extends RequestHandler {
    * @returns {Promise<Object, Error>}
    */
   execute(item) {
-    return new Promise((resolve, reject) => {
+    return new Promise(resolve => {
       item.request.gen().end((err, res) => {
         if (res && res.headers) {
           this.requestLimit = res.headers['x-ratelimit-limit'];
@@ -48,8 +48,12 @@ module.exports = class SequentialRequestHandler extends RequestHandler {
           if (err.status === 429) {
             setTimeout(() => {
               this.waiting = false;
+              this.globalLimit = false;
               resolve();
-            }, res.headers['retry-after']);
+            }, res.headers['retry-after'] + 500);
+            if (res.headers['x-ratelimit-global']) {
+              this.globalLimit = true;
+            }
           } else {
             this.queue.shift();
             this.waiting = false;
@@ -58,6 +62,7 @@ module.exports = class SequentialRequestHandler extends RequestHandler {
           }
         } else {
           this.queue.shift();
+          this.globalLimit = false;
           const data = res && res.body ? res.body : {};
           item.resolve(data);
           if (this.requestRemaining === 0) {
@@ -76,7 +81,7 @@ module.exports = class SequentialRequestHandler extends RequestHandler {
 
   handle() {
     super.handle();
-    if (this.waiting || this.queue.length === 0) {
+    if (this.waiting || this.queue.length === 0 || this.globalLimit) {
       return;
     }
     this.waiting = true;