How to replace AddJwtBearer extension in .NET Core 3.0

Question

I have the following code which compiles and works in .NET Core 2.2:

  byte[] key = Encoding.ASCII.GetBytes(Constants.JWT_SECRET); 
        services.AddAuthentication(x =>
        {
            x.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
            x.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
        })
        .AddJwtBearer(x =>
        {
            x.RequireHttpsMetadata = false;
            x.SaveToken = true;
            x.TokenValidationParameters = new TokenValidationParameters
            {
                ValidateIssuerSigningKey = true,
                IssuerSigningKey = new SymmetricSecurityKey(key),
                ValidateIssuer = false,
                ValidateAudience = false
            };
        });

In .NET Core 3.0 I am getting the error:

Error CS1061 'AuthenticationBuilder' does not contain a definition for 'AddJwtBearer' and no accessible extension method 'AddJwtBearer' accepting a first argument of type 'AuthenticationBuilder' could be found (are you missing a using directive or an assembly reference?)

when I look at the MSFT documentation: https://docs.microsoft.com/en-us/dotnet/api/microsoft.extensions.dependencyinjection.jwtbearerextensions.addjwtbearer?view=aspnetcore-2.2

and try to got to version 3.0, It seems that this is the last version where this is defined. How do I migrate AddJwtBearer to Core 3.0?

Solution 1

Like Mert Sayin says, include package Microsoft.AspNetCore.Authentication.JwtBearer, but use Version 3.0.0.

Solution 2

You must include Microsoft.AspNetCore.Authentication.JwtBearer package to your project. with version 3.0.0 for Core 3.0 and above.

Solution 3

Something like this:

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme) .AddJwtBearer(JwtBearerDefaults.AuthenticationScheme, options => Configuration.Bind("JwtSettings", options)) .AddCookie(CookieAuthenticationDefaults.AuthenticationScheme, options => Configuration.Bind("CookieSettings", options));

From here: https://docs.microsoft.com/en-us/aspnet/core/security/authentication/?view=aspnetcore-3.1

Comments

[Mert Sayın]

Did you use using Microsoft.AspNetCore.Authentication.JwtBearer; in top?

[shelbypereira]

yes I do, I don't think it is so simple since the MSFT documentation clearly states that this method does not exist in 3.0. I think there may be some way to use Dependency Injection in startup to add the JwtBearer but I haven't been able to find on internet.