AspNetCoreLearnOfficial/MinimumWebAPIWithEF/Program.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.OpenApi.Models;
using MinimumWebAPIWithEF.DB;
using MinimumWebAPIWithEF.Models;

var builder = WebApplication.CreateBuilder(args);

var connnectionString = builder.Configuration.GetConnectionString("Pizzas") ?? "Data Source=Pizzas.db";

// Add services to the container.
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
    c.SwaggerDoc("v1", new OpenApiInfo
    {
        Title = "PizzaStore API",
        Description = "Making the Pizzas you love",
        Version = "v1"
    });
});

//builder.Services.AddDbContext<PizzaDb>(options => options.UseInMemoryDatabase("items"));
builder.Services.AddSqlite<PizzaDb>(connnectionString);

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI(c =>
    {
        c.SwaggerEndpoint("/swagger/v1/swagger.json", "PizzaStore API V1");
    });
}

app.UseHttpsRedirection();

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

// Pizza routing map
app.MapGet("/pizzas", async (PizzaDb db) => await db.Pizzas.ToListAsync());

app.MapGet("/pizza/{id}", async (PizzaDb db, int id) => await db.Pizzas.FindAsync(id));

app.MapPost("/pizza", async (PizzaDb db, Pizza pizza) =>
{
    await db.Pizzas.AddAsync(pizza);
    await db.SaveChangesAsync();

    return Results.Created($"/pizza/{pizza.Id}", pizza);
});

app.MapPut("/pizza/{id}", async (PizzaDb db, Pizza updatedPizza, int id) =>
{
    var pizza = await db.Pizzas.FindAsync(id);
    if (pizza is null)
        return Results.NotFound();

    pizza.Name = updatedPizza.Name;
    pizza.Description = updatedPizza.Description;
    await db.SaveChangesAsync();

    return Results.NoContent();
});

app.MapDelete("/pizza/{id}", async (PizzaDb db, int id) =>
{
    var pizza = await db.Pizzas.FindAsync(id);
    if (pizza is null)
        return Results.NotFound();

    db.Pizzas.Remove(pizza);
    await db.SaveChangesAsync();

    return Results.Ok();
});

app.Run();