Swashbuckle.aspnetcore: Produces attribute not appearing in swagger output

[chrizy]

using 6.0.0-rc1-final

When a Produces attribute is added ether to the class or method,
[Produces("application/json")]

the swagger.json "produces" element is always empty,

"produces":[]

Thanks.

[chrizy]

Confusing but Produces needs to be the return data type,

[senj]

I can set the return data type, but then my own return type won't get listed.
If I set [Produces("application/vnd.my.v1+json")] it doesn't work.

[siberianguy]

I'm working on fixing it in this PR: https://github.com/domaindrivendev/Swashbuckle.AspNetCore/pull/292

[RehanSaeed]

Can this issue please be reopened, it was never addressed.

[domaindrivendev]

Looks to be working in the latest version of SB for ASP.NET Core - Swashbuckle.AspNetCore.1.1.0 ...

Code

[Route("/products")]
[Produces("application/json", "application/vnd.my.v1+json")]
public class ProductsController
{
    ...
}

Generated Swagger

produces: [
  "application/json",
  "application/vnd.my.v1+json",
]

[ljfraney]

I upgraded to 1.1.0 and I have an action that returns an image, but I'm still getting the empty "produces": [] array.

[Route("api/v1/[controller]")]
public class ProductController : Controller
{
    [HttpGet("Picture/{productId:int}", Name = "Picture")]
    [Produces("image/jpeg")]
    public async Task<IActionResult> Picture(int productId)
    {
        var picture = await GetPicture(productId);
        return File(picture, "image/jpeg");
    }
}

I get the following JavaScript error in swagger-ui.min.js:

Uncaught TypeError: Failed to execute 'createObjectURL' on 'URL': No function was found that matched the signature provided.

[clawrenceks]

@domaindrivendev Something is definitely not quite right here. I can never get the produces attribute to populate the produces section.

More importantly however, having written my own IOperationFilter to do the population of the produces array for me, I can now see entries in produces in the swagger.json, but my swagger UI never shows me the "Response Content Type" dropdown box.

What is controlling the appearance of this dropdown box? Is there any specific information I can provide to help with debugging? I am using asp.net core 2.0.5 and swashbuckle.aspnetcore 1.1.0

[clawrenceks]

@domaindrivendev @ljfraney I managed to get a bit further with my scenario. In summary:

If my action has a correctly configured [ProducesResponseType()] attribute, I will see the Response Content Type in Swagger UI. If the action does note have this attribute, I never see the Response Content Type drop down, even when the produces array has values in swagger.json

[ljfraney]

[clawrenceks]

[ljfraney]

[clawrenceks]

[ljfraney]

[dataspun]

[ljfraney]

[ljfraney]

[dataspun]

[dataspun]

[ljfraney]

[dataspun]

[rliberoff]

[rliberoff]