Field resolvers should also be subject to async APIs configuration

[joffrey-bion]

Issue Description

The generated field resolvers currently don't respect the generateAsyncApis configuration parameter, although they are part of the API just like top-level resolvers.

Expected Result

When generateAsyncApis is enabled, field resolvers should have a return type wrapped in CompletableFuture as well.

Actual Result

Field resolvers just have a plain java type as return type.

[vinaybedre]

@kobylynskyi I dont see any documentation on how to use generateAsyncApis
Can you please let me know if this option is supported?

[joffrey-bion]

@vinaybedre I think for more flexibility, this configuration has since been changed to apiReturnType, so you can specify any kind of return type, such as CompletableFuture:

This is what I have in my current Maven config:

<apiReturnType>java.util.concurrent.CompletableFuture</apiReturnType>

[vinaybedre]

@joffrey-bion Thanks for the hint.
Do you know is it possible to change return type of a specific field resolver?

[joffrey-bion]

@vinaybedre I don't believe this is possible at the moment. But I'll let @kobylynskyi confirm that, as I haven't contributed here in a while