wip

constants/CacheSettings.js

@@ -0,0 +1,22 @@
+/**
+ * Global cache settings:
+ * - `minTimeToStale` is the number of milliseconds until a cache entry is considered
+ *   stale, and is then refreshed
+ * - `maxTimeToLive` is the number of milliseconds until a cache entry is considered
+ *   expired (by opposition to *stale*): if considered expired, it will not be returned,
+ *   it will be refreshed instead and will only return after this fresh invocation
+ *
+ * Our node-side swr utility bases its behavior on both those props. They can both be
+ * overridden in individual swr calls (in practice, `minTimeToStale` is most overridden
+ * the most often).
+ * Redis only uses `maxTimeToLive` as its `expiry` prop.
+ */
+
+const CACHE_SETTINGS = {
+  minTimeToStale: 30 * 1000, // 30s
+  maxTimeToLive: 24 * 60 * 60 * 1000, // 1d
+  serialize: JSON.stringify, // serialize product object to string
+  deserialize: JSON.parse, // deserialize cached product string to object
+};
+
+export default CACHE_SETTINGS;

package.json

@@ -16,6 +16,7 @@
     "form-urlencoded": "^6.0.4",
     "graphql": "^15.5.1",
     "graphql-request": "^6.1.0",
+    "ioredis": "^5.3.2",
     "lodash.groupby": "^4.6.0",
     "lodash.partition": "^4.6.0",
     "lodash.uniq": "^4.5.0",
@@ -24,6 +25,7 @@
     "next": "12.1.0",
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
+    "stale-while-revalidate-cache": "^3.2.1",
     "web3": "^1.3.4"
   },
   "devDependencies": {