HttpPatch with body returns 415 #1
Description
A controller created by ControllerFactory returns httpcode 415 when calling a http patch method with a body.
Replicable example:
Out of the box WebAPI project with a patch endpoint:
[Route("patch")]
[HttpPatch]
public virtual ActionResult Patch([FromBody] object _)
{
return Ok();
}
Test calling this endpoint through a controller created by ControllerFactory:
[Test]
public async Task Patch()
{
await using var webAppFactory = new WebApplicationFactory<Startup>();
var client = webAppFactory.CreateClient();
var controllerFactory = new ControllerFactory(
client,
webAppFactory.Services,
new NunitLogWriter());
var testController = controllerFactory.CreateController<TestController>();
var response = testController.Patch(new object());
Assert.That(response.IsSuccessStatusCode());
}
Expected:
Status code 200 returned.
Actual:
Status code 415 returned.
Remarks:
The exact same code works when the endpoint is changed to [HttpPost]
Adding an IHttpRequestPipelinePart to the request chain reveals that the content is for some reason null which clarifies the 415 unsupported media type response (request is being sent without a body and a Content-Type header when one is expected)
public class ContentLoggingPipelinePart : IHttpRequestPipelinePart
{
public async Task<HttpResponseMessage> InvokeAsync(Func<Task<HttpResponseMessage>> next, HttpRequestMessage httpRequestMessage, IReadOnlyActionInfo actionInfo, InvocationInfo invocationInfo)
{
Console.WriteLine(httpRequestMessage.Content is null
? "Content is null"
: await httpRequestMessage.Content.ReadAsStringAsync());
return await next();
}
}
controllerFactory.AddHttpRequestPipelinePart(new ContentLoggingPipelinePart());
Workaround:
Calling the patch endpoint manually
[Test]
public async Task Patch()
{
await using var webAppFactory = new WebApplicationFactory<Startup>();
var client = webAppFactory.CreateClient();
var request = new HttpRequestMessage(HttpMethod.Patch, "/patch")
{
Content = new StringContent(JsonConvert.SerializeObject(new object()), Encoding.UTF8, MediaTypeNames.Application.Json)
};
var response = await client.SendAsync(request);
Assert.That(response.IsSuccessStatusCode);
}