Program.cs

using System.IO.Compression;
using System.Text;
using System.Text.Json.Serialization;
using Blog;
using Blog.Data;
using Blog.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.AspNetCore.ResponseCompression;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;

var builder = WebApplication.CreateBuilder(args);

Configuration.Load(builder.Configuration);

ConfigureAuthentication(builder);
ConfigureMvc(builder);
ConfigureServices(builder);

builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}
 
app.UseHttpsRedirection();
app.UseAuthentication();
app.UseAuthorization();
app.UseStaticFiles();
app.UseResponseCompression();
app.MapControllers();

app.Run();

void ConfigureAuthentication(WebApplicationBuilder builder)
{
    var key = Encoding.ASCII.GetBytes(Configuration.JwtKey);

    builder.Services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuerSigningKey = true,
            IssuerSigningKey = new SymmetricSecurityKey(key),
            ValidateIssuer = false,
            ValidateAudience = false
        };
    });
}

void ConfigureMvc(WebApplicationBuilder builder)
{
    builder.Services.AddMemoryCache();

    builder.Services.AddResponseCompression(options =>
    {
        options.Providers.Add<GzipCompressionProvider>();
    });

    builder.Services.Configure<GzipCompressionProviderOptions>(options =>
    {
        options.Level = CompressionLevel.Optimal;
    });

    builder.Services
        .AddControllers()
        .ConfigureApiBehaviorOptions(options =>
        {
            options.SuppressModelStateInvalidFilter = true;
        })
        .AddJsonOptions(options =>
        {
            options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.IgnoreCycles;
            options.JsonSerializerOptions.DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault;
        });
}

void ConfigureServices(WebApplicationBuilder builder)
{
    var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");

    builder.Services.AddDbContext<BlogDataContext>(options =>
        options.UseSqlServer(connectionString));

    builder.Services.AddTransient<TokenService>();
    builder.Services.AddTransient<EmailService>();
}