fix cache

Author: Dhaiwat10

src/utils/assets.ts

@@ -1,54 +1,30 @@
 import { CHAIN_IDS, type Asset, type NetworkFuel } from 'fuels';
-import { promises as fs } from 'fs';
-import { join } from 'path';
-import os from 'os';
-import { fileURLToPath } from 'url';
-import { dirname } from 'path';
-
-// Get project root directory (will try to save the the dev's project root)
-const CACHE_DIR = join(process.cwd(), '.fuel-agent-kit'); // change name or dir maybe?
-const CACHE_FILE = join(CACHE_DIR, 'verified-assets.json');
-const CACHE_TTL = 1000 * 60 * 60; // 1 hour in milliseconds
 
 interface CacheData {
   timestamp: number;
   data: Asset[];
 }
 
-export const getVerifiedAssets = async () => {
-  try {
-    // Try to read from cache first
-    const cacheExists = await fs
-      .access(CACHE_FILE)
-      .then(() => true)
-      .catch(() => false);
-
-    if (cacheExists) {
-      const cacheContent = await fs.readFile(CACHE_FILE, 'utf-8');
-      const cache = JSON.parse(cacheContent) as CacheData;
+// In-memory cache
+let assetsCache: CacheData | null = null;
+const CACHE_TTL = 1000 * 60 * 60; // 1 hour in milliseconds
 
-      // Check if cache is still valid
-      if (Date.now() - cache.timestamp < CACHE_TTL) {
-        return cache.data;
-      }
-    } else {
-    }
-  } catch (error) {}
+export const getVerifiedAssets = async () => {
+  // Check if we have valid cache
+  if (assetsCache && Date.now() - assetsCache.timestamp < CACHE_TTL) {
+    return assetsCache.data;
+  }
 
+  // Fetch fresh data
   const allAssets = (await fetch(
     'https://verified-assets.fuel.network/assets.json',
   ).then((res) => res.json())) as Asset[];
-  // Save to cache
-  try {
-    await fs.mkdir(CACHE_DIR, { recursive: true });
-    await fs.writeFile(
-      CACHE_FILE,
-      JSON.stringify({
-        timestamp: Date.now(),
-        data: allAssets,
-      }),
-    );
-  } catch (error) {}
+
+  // Update cache
+  assetsCache = {
+    timestamp: Date.now(),
+    data: allAssets,
+  };
 
   return allAssets;
 };