Program.cs

using UserManagementApi.Middleware;
using UserManagementApi.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;
using System.Text;
var builder = WebApplication.CreateBuilder(args);
var jwt = builder.Configuration.GetSection("Jwt");
builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme).AddJwtBearer(options => {
    options.TokenValidationParameters = new TokenValidationParameters {
        ValidateIssuer = true,
        ValidateAudience = true,
        ValidateLifetime = true,
        ValidateIssuerSigningKey = true,
        ValidIssuer = jwt["Issuer"],
        ValidAudience = jwt["Audience"],
        IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(jwt["Key"]))
    };
});
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddOpenApi();
builder.Services.AddSingleton<UserService>();
var app = builder.Build();
app.UseMiddleware<ErrorHandlingMiddleware>();
app.UseMiddleware<RequestLoggingMiddleware>();
if (app.Environment.IsDevelopment()) {
    app.MapOpenApi();
    app.UseSwagger();
    app.UseSwaggerUI();
}
app.UseHttpsRedirection();
app.UseAuthentication();
app.UseAuthorization();
app.MapControllers();
app.Run();