improve(ApiClient): Randomize /limits cache TTL (#1354)

across-protocol · Mar 25, 2024 · 286fefb · 286fefb
1 parent 80fe329
commit 286fefb
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/clients/AcrossAPIClient.ts b/src/clients/AcrossAPIClient.ts
@@ -162,7 +162,10 @@ export class AcrossApiClient {
         }
         if (redis) {
           // Cache limit for 5 minutes.
-          await redis.set(this.getLimitsCacheKey(l1Token, destinationChainId), result.data.maxDeposit.toString(), 300);
+          const baseTtl = 300;
+          // Apply a random margin to spread expiry over a larger time window.
+          const ttl = baseTtl + Math.ceil(_.random(-0.5, 0.5, true) * baseTtl);
+          await redis.set(this.getLimitsCacheKey(l1Token, destinationChainId), result.data.maxDeposit.toString(), ttl);
         }
         return result.data;
       } catch (err) {