Program.cs

using EmployeeManagementSystem.Extensions;
using EmployeeManagementSystem.Middleware;
using Serilog;
using Microsoft.OpenApi.Models;
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System;

var builder = WebApplication.CreateBuilder(args);

// Configure Serilog
Log.Logger = new LoggerConfiguration()
    .ReadFrom.Configuration(builder.Configuration)
    .Enrich.FromLogContext()
    .CreateLogger();
builder.Host.UseSerilog();

// Add services to the container.
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();

// Swagger Config with JWT Bearer Token Support
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new OpenApiInfo { Title = "EmployeeManagementSystem API", Version = "v1" });
    c.AddSecurityDefinition("Bearer", new OpenApiSecurityScheme
    {
        In = ParameterLocation.Header,
        Description = "Please enter token",
        Name = "Authorization",
        Type = SecuritySchemeType.Http,
        BearerFormat = "JWT",
        Scheme = "bearer"
    });
    c.AddSecurityRequirement(new OpenApiSecurityRequirement
    {
        {
            new OpenApiSecurityScheme
            {
                Reference = new OpenApiReference { Type = ReferenceType.SecurityScheme, Id = "Bearer" }
            },
            Array.Empty<string>()
        }
    });
});

// Configure Custom Extensions
builder.Services.ConfigureCors(builder.Configuration);
builder.Services.ConfigureDependencyInjection();
builder.Services.ConfigureJwtAuthentication(builder.Configuration);
builder.Services.ConfigureValidation();
builder.Services.ConfigureRateLimiter();
builder.Services.AddMemoryCache(); // Built-in cache setup

var app = builder.Build();

// Configure the HTTP request pipeline.
app.UseMiddleware<ExceptionMiddleware>();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseSerilogRequestLogging();

app.UseHttpsRedirection();

app.UseCors("CorsPolicy");

app.UseRateLimiter();

app.UseAuthentication();
app.UseAuthorization();

app.MapControllers();

//Use to run the application
app.Run();