Hello,

I am writing an elixir library that wraps an HTTP API. If you check out this endpoint ReDoc Interactive Demo you’ll see the POST body can have multiple shapes as there are some fields that are optional and some that are required. I am seeking some advice on how to properly validate all possible API params (and their types) for a given endpoint.

In the simplest form I envision my library having a function build_transaction(params) that accepts a params variable and then validates its shape and types.

I did some research and saw there are some validation libraries out there but wanted to see what you guys use.

This endpoint ReDoc Interactive Demo is a good example of how complex a POST body can be. If you expand the metadata field you’ll see that the type has a set number of possibilities and also per each selection there are additional fields required.

Thanks for any help / guidance!