feat: implement caching of api responses

should help a bit in not getting rate-limited

utils/getOrSetCache.js

@@ -0,0 +1,15 @@
+import redis from './redis.js';
+
+const ttl = process.env.REDIS_TTL || 3600;
+
+const getOrSetCache = async (key, callback, ...callbackArgs) => {
+  const data = await redis.get(key);
+  if (data) return JSON.parse(data);
+
+  const dataToCache = await callback(...callbackArgs);
+  await redis.set(key, JSON.stringify(dataToCache), 'EX', ttl);
+
+  return dataToCache;
+};
+
+export default getOrSetCache;