chore: sync submodule state (parent ref update)

Made-with: Cursor

services/token-aggregation/src/api/utils/fetch-remote-json.ts

@@ -0,0 +1,41 @@
+/**
+ * Fetch JSON from a URL with in-memory caching.
+ * Used for TOKEN_LIST_JSON_URL, BRIDGE_LIST_JSON_URL, NETWORKS_JSON_URL (e.g. GitHub raw URLs).
+ */
+
+const CACHE_TTL_MS = 5 * 60 * 1000; // 5 minutes
+
+interface CacheEntry {
+  data: unknown;
+  expiresAt: number;
+}
+
+const cache = new Map<string, CacheEntry>();
+
+export async function fetchRemoteJson(
+  url: string,
+  ttlMs: number = CACHE_TTL_MS
+): Promise<unknown> {
+  const trimmed = url?.trim();
+  if (!trimmed) {
+    throw new Error('URL is required');
+  }
+  const entry = cache.get(trimmed);
+  if (entry && entry.expiresAt > Date.now()) {
+    return entry.data;
+  }
+  const res = await fetch(trimmed, {
+    headers: { Accept: 'application/json' },
+    signal: AbortSignal.timeout(15000),
+  });
+  if (!res.ok) {
+    throw new Error(`HTTP ${res.status}`);
+  }
+  const data = await res.json();
+  cache.set(trimmed, { data, expiresAt: Date.now() + ttlMs });
+  return data;
+}
+
+export function clearRemoteJsonCache(): void {
+  cache.clear();
+}