Non-nullable fields on an input object type

[joelterry-promenade]

Is your feature request related to a problem? Please describe.

graphql-code-generator/packages/plugins/typescript/typescript/src/visitor.ts

Lines 333 to 335 in d49124e

	throw new Error(
	'Fields on an input object type can not be non-nullable. It seems like the schema was not validated.'
	);

Is this part of the GraphQL spec or is it an opinion? Would there be a lot of pushback to removing this check?

Describe the solution you'd like

Remove this check.

Describe alternatives you've considered

No response

Is your feature request related to a problem? Please describe.

No response

[lars250698]

I'm not sure about this check either. Non-Nullable fields on input objects seem to be allowed in the spec, there are even examples of it in the spec. I don't get the reason of this check.

[eddeee888]

Hello,

This is in the context of @oneOf directive. Here's the condition.

When said directive is used, the fields cannot be non-nullable. In this case, I believe this is correct.
Here's a relevant proposal and blog post

[lars250698]

That makes a lot of sense, thanks for clarifying!

[joelterry-promenade]

@eddeee888 Ah sorry for the misunderstanding, thanks for clearing that up!