case insensitive

Author: Shahnawaz-Sk

lib/api_client.js

@@ -13,7 +13,7 @@ var ApiClient = function (settings) {
     * Region validation
     * @return {Error|null}
     */
-    const region = settings.region || "us";
+    const region = (settings.region || "us").toLowerCase();
     if (!["us", "eu"].includes(region)) {
         throw new Error("Region is invalid.");
     }

lib/api_client_v2.js

@@ -22,7 +22,7 @@ var ApiClient = function (settings) {
         logger = require("./logger")(settings.logFile);
     }
 
-    const region = settings.region || "us";
+    const region = (settings.region || "us").toLowerCase();
 
     /**
     * Region validation