[myshkin5]

> 5xx for internal errors (these should be avoided at all costs)

An anti pattern I’ve often seen has devs avoiding 5xx errors in bizarre ways. I would change the above to make to have monitoring in place to address 5xx errors. By all means, let your code throw a 500 if things go off the rails.

[rbluethl]

Author here. I generally agree - IF something goes terribly wrong within the application, a 500 is definitely the way to go. The thing is - these just shouldn't happen that often. Because in that case we're having a bigger problem. :D For example I have never seen Stripe return a HTTP 500 from their API. Thing just works.