Polymorphic input types

[oojacoboo]

I'd like to go ahead and present this RFC for implementation, possibly early as it looks to have full support. Or, at the least, I'd like to get the discussion and ideas flowing for implementation in the future.

https://github.com/graphql/graphql-spec/blob/master/rfcs/InputUnion.md

This is particularly of interest in cases where you have an update mutation that has optional relational inputs. In this case, you have to support creating and updating for the relation. It's also the case for one:many relationships, if you wish to update relations within a parent mutation.

There are a number of other use cases that are also important. The above use case is one that we're finding to be very common and a continual frustration point with the API/schema.

[moufmouf]

I do understand your frustration.

GraphQLite uses webonyx/graphql-php under the hood for schema generation and GraphQL parsing.
I'm all in favor of implementing polymorphic input types but we need first to have it supported by webonyx/graphql-php. So I think you should first open an issue with them.

Once it is supported in webonyx/graphql-php, it to GraphQLite should be quite easy.

[oojacoboo]

The issue has been filed with webonyx now.

webonyx/graphql-php#619

[noknokcody]

Been 4 years since this was posted so I'd be keen to see if there's any updates to this ? Been a good point of frustration for me aswell. Currently trying to make some form of workaround using a custom RootTypeMapper.

[oojacoboo]

@noknokcody submit a PR with webonyx, then we can get a PR merged here as well.