Ability for Declarative HTTP Client to consume APIs that do not include content-type headers in response

[tonyerskine]

Feature description

When consuming legacy, external ReST services that do not include Content-Type headers with their responses, I would like to be able to advise the declarative, HTTP client to parse responses using the Consumes annotation.

For example, it would be nice if the following method would default to parsing the response body as JSON if the response doesn't contain the Content-Type header because it's annotated to consume JSON.

    @Post
    @Consumes(MediaType.APPLICATION_JSON)
    HttpResponse<TokenResponse> postToken(@NotNull @Body String token)

see also: https://stackoverflow.com/questions/68761358/grails-4-micronaut-http-client-failing-to-bind-response/68774041#68774041

[ojebari-ma]

Can you please confirm that this is still an issue in the latest version of Micronaut?