An API should usually prioritize ease of development over faithfully exposing database or architecture internals. However, you can have it both ways: in the cu

An API should usually prioritize ease of development over faithfully exposing database or architecture internals. However, you can have it both ways: in the customer response, use "invoices": "/customer/7sn2J/invoices" and have the server 307 redirect to "/invoices?customer=7sn2J", or whatever you prefer.