AMessanger-Server/AMessanger.Application/ApplicationExtensions.cs

using System.Text;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.IdentityModel.Tokens;

namespace AMessanger.Application;

public static class ApplicationExtensions
{
    public static IServiceCollection AddAuth(this IServiceCollection services, IConfiguration configuration)
    {
        services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
            .AddJwtBearer(options =>
            {
                options.TokenValidationParameters = new Microsoft.IdentityModel.Tokens.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:Key"]!)
                    )
                };
            });

        return services.AddAuthorization();
    }
}