طريقة أجمل لحقن الأشياء

var builder = WebApplication.CreateBuilder(args);

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

// Repositories
builder.Services.AddScoped<ARepository>(); // 👀
builder.Services.AddScoped<BRepository>(); // 👀

// Services
builder.Services.AddScoped<AService>(); // 👀
builder.Services.AddScoped<BService>(); // 👀
builder.Services.AddScoped<CService>(); // 👀
builder.Services.AddScoped<DService>(); // 👀

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.MapRazorPages();

app.Run();

/// <summary>
/// IServiceCollectionServicesExtensions class
/// </summary>
public static class IServiceCollectionServicesExtensions
{
    /// <summary>
    /// AddCoreServices
    /// </summary>
    /// <param cref="IServiceCollection" name="services">Parameter for <see cref="IServiceCollection"/></param>
    /// <returns>An object of type <see cref="IServiceCollection"/></returns>
    public static IServiceCollection AddServices(this IServiceCollection services)
    {
        services
            .AddScoped<AService>()
            .AddScoped<BService>()
            .AddScoped<CService>()
            .AddScoped<DService>();

        return services;
    }
}

/// <summary>
/// IServiceCollectionServicesExtensions class
/// </summary>
public static class IServiceCollectionServicesExtensions
{
    /// <summary>
    /// AddCoreServices
    /// </summary>
    /// <param cref="IServiceCollection" name="services">Parameter for <see cref="IServiceCollection"/></param>
    /// <returns>An object of type <see cref="IServiceCollection"/></returns>
    public static IServiceCollection AddRepositories(this IServiceCollection services)
    {
        services
            .AddScoped<ARepository>()
            .AddScoped<BRepository>();

        return services;
    }
}

var builder = WebApplication.CreateBuilder(args);

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

// Repositories
builder.Services.AddRepositories(); // 👀

// Services
builder.Services.AddServices(); // 👀

var app = builder.Build();

// Configure the HTTP request pipeline.
if (!app.Environment.IsDevelopment())
{
    app.UseExceptionHandler("/Error");
    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
    app.UseHsts();
}

app.UseHttpsRedirection();
app.UseStaticFiles();

app.UseRouting();

app.UseAuthorization();

app.MapRazorPages();

app.Run();