Hi, is there way to know which field is required in response of query in resolver function logic? So i can use projection in mongoose and get only those field.

You can use the

info

object on your resolver to get the required fields.

last argument right?

Yeah. Also have a look at this library that will make it easier to fetch the fields.

is it compatible with graphql-yoga library?

Yeah it should be as it only uses the

info

object on your resolver.

Ok Thanks i will look.