If you want a data store that exposes your database over HTTP then use on of the billion data stores that is designed to do that. None of those are meant to be a public API, and doing this is so incredibly wreckless and short sighted I could write at least a chapter in a book about it.
Actually, I did write a chapter in a book about it.
https://leanpub.com/build-apis-you-wont-hate
A RESTful API is about so many more things than just shoving a generic CRUD interface on top of your data schema.