Proxy the calls to the external API via your own gateway. You’ll get better control over caching behavior, push complexity away from the client, and have more c

Proxy the calls to the external API via your own gateway. You’ll get better control over caching behavior, push complexity away from the client, and have more control over how you handle dependency failures. Also, you should load test lambda with expected traffic patterns to actually validate that container-based caching is insufficient. Dynamo also has good in-dc latency, with very good scaling behavior.