JWT Authentication and Swagger with .NET Core 3.0

Question

I am developing some Web API with .NET Core 3.0 and want to integrate it with SwashBuckle.Swagger. It is working fine, but when I add JWT authentication, it does not work as I expect. To do that, I added the code below:

services.AddSwaggerGen(c =>     {         c.SwaggerDoc("v1", new Microsoft.OpenApi.Models.OpenApiInfo { Title = "My Web API", Version = "v1" });         c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme         {             Description = "JWT Authorization header using the Bearer scheme. Example: \"Authorization: Bearer {token}\"",             Name = "Authorization",             In = ParameterLocation.Header,             Type = SecuritySchemeType.ApiKey         });     }); 

After adding AddSecurityDefinition function, I can see the Authorize button and when I click it, I see the form below:

Then I type Bearer WhatEverApiKeyIsfgdgdgdg845734987fgdhgiher635kjh. After doing it, I expect to see authorization: Bearer WhatEverApiKeyIsfgdgdgdg845734987fgdhgiher635kjh in the request's header when I send a request to the Web API from Swagger, but authorization is not added to the request header. I am using SwashBuckle.Swagger(5.0.0-rc3). Please note there are many samples which work fine on .NET Core 2.0, but Swashbuckle swagger functions has changed on the latest version so I cannot use those samples.

Answer 1

After some research, I eventually found the answer here

Before seeing this page, I knew that I should use AddSecurityRequirement after AddSecurityDefinition because of many samples, but it was a problem that the function parameters have changed on .NET Core 3.0.

By the way, the final answer is as below:

services.AddSwaggerGen(c => {   c.SwaggerDoc("v1", new OpenApiInfo {      Title = "My API",      Version = "v1"    });   c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme {     In = ParameterLocation.Header,      Description = "Please insert JWT with Bearer into field",     Name = "Authorization",     Type = SecuritySchemeType.ApiKey    });   c.AddSecurityRequirement(new OpenApiSecurityRequirement {    {       new OpenApiSecurityScheme       {         Reference = new OpenApiReference         {           Type = ReferenceType.SecurityScheme,          Id = "Bearer"         }        },       new string[] { }      }    }); });