Program.cs

using System.Text;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;
using TMonitBackend.Models;
using TMonitBackend.Configuration;
using TMonitBackend.Services;

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.Configure<JWTSettings>(builder.Configuration.GetSection("JWTConfig"));
string connectionString = builder.Configuration.GetConnectionString("SqlServerTMonit");
builder.Services.AddDbContext<DatabaseContext>(
    options => options.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString))
);
builder.Services.AddAuthentication(options =>
{
    options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultScheme = JwtBearerDefaults.AuthenticationScheme;
    options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
}).AddJwtBearer(jwt =>
{
    var key = Encoding.ASCII.GetBytes(builder.Configuration["JWTConfig:Secret"]);

    jwt.SaveToken = true;
    jwt.TokenValidationParameters = new TokenValidationParameters
    {
        ValidateIssuerSigningKey = true,
        IssuerSigningKey = new SymmetricSecurityKey(key),
        ValidateIssuer = false,
        ValidateAudience = false,
        ValidateLifetime = true,
        RequireExpirationTime = false
    };
});
//todo
// builder.Services.AddSingleton<EmailService>();
builder.Services.AddSingleton<ValidationQuery>();
builder.Services.AddDefaultIdentity<User>(options => options.SignIn.RequireConfirmedAccount = true)
            .AddEntityFrameworkStores<DatabaseContext>();

var app = builder.Build();

// using (var scope = app.Services.CreateScope())
// {
//     var dbctx = scope.ServiceProvider.GetService<DatabaseContext>();
//     await dbctx.Database.MigrateAsync();
// }

// Configure the HTTP request pipeline on dev.
if (app.Environment.IsDevelopment())
{
    app.UseCors();
    app.UseSwagger();
    app.UseSwaggerUI();
    app.UseAuthentication();
}

app.UseExceptionHandler("/Home/Error");
app.UseHsts();

app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.MapControllers();
app.Run("http://localhost:10017");