Minimal API CRUD .NET 6.0

Program.cs

using Microsoft.EntityFrameworkCore;

var builder = WebApplication.CreateBuilder(args);

builder.Services.AddDbContext<RobotDbContext>(opt => opt.UseInMemoryDatabase("DBRobot"));

var app = builder.Build();

if (app.Environment.IsDevelopment())
{
    app.UseDeveloperExceptionPage();
}

app.MapGet("/", () => "Hello World!");

app.MapGet("/robots", async (RobotDbContext db) =>
{
    return await db.Robotics.ToListAsync();
});

app.MapGet("/robots/{id}", async (RobotDbContext db, int id) =>
{
    return await db.Robotics.FindAsync(id) is Robot robot ? Results.Ok(robot) : Results.NotFound();
});

app.MapPost("/robots", async (RobotDbContext db, Robot robot) =>
{
    await db.Robotics.AddAsync(robot);
    await db.SaveChangesAsync();

    return Results.Ok(robot);
});

app.MapPut("/robots/{id}", async (RobotDbContext db, int id, Robot inputRobot) =>
{
    if (await db.Robotics.FindAsync(id) is Robot robot)
    {
        robot.Company = inputRobot.Company;
        robot.Name = inputRobot.Name;
        await db.SaveChangesAsync();
        return Results.NoContent();
    }
    else
    {
        return Results.NotFound();
    }
});
app.MapDelete("/robots/{id}", async (RobotDbContext db, int id) =>
{
    if (await db.Robotics.FindAsync(id) is Robot robot)
    {
        db.Robotics.Remove(robot);
        await db.SaveChangesAsync();
        return Results.Ok();
    }
    else
    {
        return Results.NotFound();
    }
});

app.Run();

public class RobotDbContext : DbContext
{
    public RobotDbContext(DbContextOptions options) : base(options) { }

    public DbSet<Robot> Robotics { get; set; }
}

public class Robot
{
    public int Id { get; set; }
    public string Company { get; set; }
    public string Name { get; set; }
}