Improvement: DO-3034 make request() utility options argument optional, defaulting to empty object like fetch

packages/dara-core/changelog.md

@@ -2,6 +2,10 @@
 title: Changelog
 ---
 
+## NEXT
+
+-   Internal (JS): make request() helper options default to empty object
+
 ## 1.14.0
 
 -   Added support for seamless token refresh mechanism. A provided auth config can be configured to support token refresh by:

packages/dara-core/js/api/http.tsx

@@ -64,13 +64,12 @@ export class RequestExtrasSerializable {
  * Light wrapper around fetch.
  *
  * @param url URL
- * @param options  fetch options
- * @param extras request extras to be merged into the options
+ * @param options optional fetch options. Multiple option sets can be provided, they will be merged in order with later options overriding earlier ones.
  */
-export async function request(url: string | URL, options: RequestInit, extras?: RequestExtras): Promise<Response> {
+export async function request(url: string | URL, ...options: RequestInit[]): Promise<Response> {
     // block on the token in case it's locked, i.e. being refreshed by another concurrent request
     const sessionToken = await globalStore.getValue(getTokenKey());
-    const mergedOptions = extras ? { ...options, ...extras } : options;
+    const mergedOptions = options.reduce((acc, opt) => ({ ...acc, ...opt }), {});
 
     const { headers, ...other } = mergedOptions;