Is it possible to specify the Locale in DataFetchingEnvironment using the Accept-Language header?

[aerospike2010]

Is it possible to specify the Locale in DataFetchingEnvironment using the Accept-Language header?

I need this for using the graphql-dgs-extended-validation library, where I have to specify the Locale for the error message.

[congotej]

Hi @aerospike2010! If I understand the question correctly, you want to use a header value in your data fetcher. You can use @requestHeader. This will pass along the value of said header to the data fetcher and you can use it however (i.e the Accept-Language header).

[djlfb]

Reviving this thread as currently there is potential for error by developers using DataFetchingEnvironment#getLocale rather than through the request header annotation or custom context.

If the ExecutionInput could be customised to allow the Locale in DataFetchingEnvironment to be explicitly set, that would avoid such innocent mistakes.

We could introduce linting, but I don't see any harm in making this customisable as well.

[srinivasankavitha]

Thanks for the discussion so fa. I would recommend opening a discussion in graphql-java directly for this feature since it is something that would be beneficial to support in DataFetchingEnvironment rather than customizing it for just the framework.