dotnet new webapi --use-controllers -o cd dotnet add package Microsoft.EntityFrameworkCore.InMemory code -r ../ dotnet dev-certs https --trust --> Use Https. dotnet run --launch-profile https --> Launch application. Add a folder and inside file that represent namespace TodoApi.Models; public class TodoItem { public long Id { get; set; } public string? Name { get; set; } public bool IsComplete { get; set; } }