[thorum]

I wrote my (small) AWS app so it can run both on AWS and my local machine. Then you can write tests against the higher-level logic like "save this file to S3" and run those tests locally as well.

My main challenge with serverless is using Lambda with API Gateway. Lambda has no database connection pooling, so I end up with a ridiculous number of connections to RDS - one for each simultaneous user. I haven't found a solution to this yet, other than not using API Gateway.

[voganmother42]

One solution, use external pooler like pgbouncer or mysql-proxy running on a small instance(s)

[orthecreedence]

I'm actually kind of blown away RDS doesn't have pgbouncer installed on the database. That's how we operate...each db server has pgbouncer living right on it. We connected to bouncer, not directly to the DB.