Swashbuckle does not display the API correctly - asp.net-core

Question

Swashbuckle was used in my project, I followed the documentation, but at the end an error was displayed.
services.AddSwaggerGen(c =>
{
c.SwaggerDoc("v1", new OpenApiInfo
{
Version = "v1",
Title = "ToDo API",
Description = "A simple example ASP.NET Core Web API",
TermsOfService = new Uri("https://example.com/terms"),
Contact = new OpenApiContact
{
Name = "Shayne Boyer",
Email = string.Empty,
Url = new Uri("https://twitter.com/spboyer"),
},
License = new OpenApiLicense
{
Name = "Use under LICX",
Url = new Uri("https://example.com/license"),
}
});
});
app.UseSwagger(c =>
{
c.SerializeAsV2 = true;
});
app.UseSwaggerUI(c =>
{
c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
});
What did i do wrong? Thanks for the help!

Answer 1

I have encountered this problem before, and I can reproduce your problem, but I am not sure if this is your problem.
All configurations follow the official documentation:
Get started with Swashbuckle and ASP.NET Core
Then the reason for this error is that you must specify the request method, you need to add [HttpGet], [HttpPost], etc. to the method, and you can view the API through Swagger UI,like this:
[ApiController]
public class HomeController : Controller
{
[HttpGet]
[Route("test")]
public string Test()
{
return "Test";
}
}
Result:
If the above method cannot be solved, can you post your specific error message?