Program.cs

using AutoMapper;
using Microsoft.EntityFrameworkCore;
using ToDoApp.Data;
using ToDoApp.Mappings;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
builder.Services.AddDbContext<ToDoContext>(options =>
    options.UseSqlServer(builder.Configuration.GetConnectionString("ToDoContext")));
builder.Services.AddSwaggerGen();

var mapperConfig = new MapperConfiguration(mc =>
{
    mc.AddProfile(new MappingProfile());
});

IMapper mapper = mapperConfig.CreateMapper();
builder.Services.AddSingleton(mapper);

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(options =>
    {
        options.SwaggerEndpoint("/swagger/v1/swagger.json", "v1");
        options.RoutePrefix = "api";
    });
}

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.UseCors(options => options.AllowAnyOrigin().AllowAnyMethod());

app.Run();