api internalFetch refactor

src/api/api.js

@@ -5,20 +5,16 @@ function getHeaders() {
   return headers;
 }
 
-function internalFetch(url, options) {
-  return fetch(url, options).then((res) =>
-    res.text().then((text) => {
-      let t = text ? JSON.parse(text) : res.statusText;
+async function internalFetch(url, options) {
+  const res = await fetch(url, options);
+  const text = await res.text();
+  const t = text ? JSON.parse(text) : res.statusText;
   if (!res.ok) {
     if (res.status === 404) throw new Error(t || "Not found");
-
     if (res.status >= 400 && res.status < 600 && t) throw t;
-
     throw new Error(t || "Unknown error");
   }
   return t;
-    })
-  );
 }
 
 export function post(url, body) {