Add depth limit logic to Apollo Server

[briri]

Add depth limiting logic to the Apollo Server backend to prevent callers from requesting too much data and blocking subsequent calls.

There are many article on this. For example:

• https://www.apollographql.com/blog/prevent-graph-misuse-with-operation-size-and-complexity-limits
• https://escape.tech/blog/cyclic-queries-and-depth-limit/

Part of this will be to add pagination to the responses.

[jupiter007]

Hi @briri. I created a similar ticket awhile back. Just an FYI: #38

[jupiter007]

Oh nevermind. I see you added a comment to yours about keeping all three.