lots of important stuff (#1883)

* lots of important stuff

* Update Constants.js

src/rest/APIRequest.js

@@ -0,0 +1,40 @@
+const querystring = require('querystring');
+const snekfetch = require('snekfetch');
+
+class APIRequest {
+  constructor(rest, method, path, options) {
+    this.rest = rest;
+    this.client = rest.client;
+    this.method = method;
+    this.path = path.toString();
+    this.route = options.route;
+    this.options = options;
+  }
+
+  gen() {
+    const API = this.options.versioned === false ? this.client.options.http.api :
+      `${this.client.options.http.api}/v${this.client.options.http.version}`;
+
+    if (this.options.query) {
+      const queryString = (querystring.stringify(this.options.query).match(/[^=&?]+=[^=&?]+/g) || []).join('&');
+      this.path += `?${queryString}`;
+    }
+
+    const request = snekfetch[this.method](`${API}${this.path}`);
+
+    if (this.options.auth !== false) request.set('Authorization', this.rest.getAuth());
+    if (this.options.reason) request.set('X-Audit-Log-Reason', encodeURIComponent(this.options.reason));
+    if (!this.rest.client.browser) request.set('User-Agent', this.rest.userAgentManager.userAgent);
+    if (this.options.headers) request.set(this.options.headers);
+
+    if (this.options.files) {
+      for (const file of this.options.files) if (file && file.file) request.attach(file.name, file.file, file.name);
+      if (typeof this.options.data !== 'undefined') request.attach('payload_json', JSON.stringify(this.options.data));
+    } else if (typeof this.options.data !== 'undefined') {
+      request.send(this.options.data);
+    }
+    return request;
+  }
+}
+
+module.exports = APIRequest;