ngl idk what it did, might be big

animeverse/animeverse.js

@@ -1,5 +1,6 @@
 let cachedAuthKey = null;
 let cachedAuthExpires = 0;
+let authKeyPromise = null;
 
 async function getFingerprint() {
     let canvasVal = "zN12a8x9c7Vb5m4l3k2j1h";
@@ -60,22 +61,34 @@ async function getAuthKey() {
     if (cachedAuthKey && Math.floor(Date.now() / 1000) < cachedAuthExpires) {
         return cachedAuthKey;
     }
-    const fp = await getFingerprint();
-    const sessionRes = await fetchv2(
-        'https://animeverse.to/api/v1/session',
-        { 'content-type': 'application/json', 'user-agent': fp.ua },
-        'POST',
-        JSON.stringify({ fp })
-    );
 
-    const sessionText = typeof sessionRes.text === 'function' ? await sessionRes.text() : sessionRes;
-    const sessionData = JSON.parse(sessionText);
-    if (!sessionData.clientAuthKey) {
-        throw new Error("Session bootstrap failed: " + sessionText);
+    if (authKeyPromise) {
+        return authKeyPromise;
     }
-    cachedAuthKey = sessionData.clientAuthKey;
-    cachedAuthExpires = sessionData.expiresAt - 10;
-    return cachedAuthKey;
+
+    authKeyPromise = (async () => {
+        try {
+            const fp = await getFingerprint();
+            const sessionRes = await fetchv2(
+                'https://animeverse.to/api/v1/session',
+                { 'content-type': 'application/json', 'user-agent': fp.ua },
+                'POST',
+                JSON.stringify({ fp })
+            );
+            const sessionText = typeof sessionRes.text === 'function' ? await sessionRes.text() : sessionRes;
+            const sessionData = JSON.parse(sessionText);
+            if (!sessionData.clientAuthKey) {
+                throw new Error("Session bootstrap failed: " + sessionText);
+            }
+            cachedAuthKey = sessionData.clientAuthKey;
+            cachedAuthExpires = sessionData.expiresAt - 10;
+            return cachedAuthKey;
+        } finally {
+            authKeyPromise = null;
+        }
+    })();
+
+    return authKeyPromise;
 }
 
 async function fetchSigned(urlPath) {