How to get bearer token using swagger UI authorization in asp.net core API?
Dung Do Tien
Jan 07 2021
388
I'm getting started with ASP.NET Core JWT
When I try to test API by using swagger UI, I can't push token into HTTP request so I always receive 401 Unauthorize message
How can I config swagger to allow send requests with a bearer token?
Here is my Startup.cs
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
options.RequireHttpsMetadata = false;
options.SaveToken = true;
options.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuer = true,
ValidateAudience = true,
ValidateLifetime = true,
ValidateIssuerSigningKey = true,
ValidIssuer = Configuration["Jwt:Issuer"],
ValidAudience = Configuration["Jwt:Audience"],
IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:SecretKey"])),
ClockSkew = TimeSpan.Zero
};
});
services.AddSwaggerGen();
services.AddAuthorization(config =>
{
config.AddPolicy(Policies.Admin, Policies.AdminPolicy());
config.AddPolicy(Policies.User, Policies.UserPolicy());
});
}
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseSwagger();
app.UseSwaggerUI(action => { action.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1"); });
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthentication();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
Here is my API :
[HttpGet]
[Authorize(Policy = Policies.User)]
public IEnumerable<WeatherForecast> Get()
{
var rng = new Random();
return Enumerable.Range(1, 5).Select(index => new WeatherForecast
{
Date = DateTime.Now.AddDays(index),
TemperatureC = rng.Next(-20, 55),
Summary = Summaries[rng.Next(Summaries.Length)]
}).ToArray();
}
My environment:
- ASP.NET Core 3.1
- Swashbuckle.AspNetCore 5.6.3 (latest)
Thank you for any suggestion.
Have 1 answer(s) found.
-
J1
Jide Jan 07 2021
I got the same issue in the past !
You must change AddSwaggerGen in
Startup.csto the code bellowservices.AddSwaggerGen(c => { 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[] { } } }); });It work for me. I think it work for you also !
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