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.NET Core Extensions and Helper NuGet packages. If you are looking for the .NET Boxed project templates, you can find them here.

Boxed.Mapping

A simple and fast (fastest?) object to object mapper that does not use reflection. Read A Simple and Fast Object Mapper for more information.

public class MapFrom
{
    public bool BooleanFrom { get; set; }
    public int IntegerFrom { get; set; }
    public List<MapFromChild> ChildrenFrom { get; set; }
}
public class MapFromChild
{
    public DateTimeOffset DateTimeOffsetFrom { get; set; }
    public string StringFrom { get; set; }
}
 
public class MapTo
{
    public bool BooleanTo { get; set; }
    public int IntegerTo { get; set; }
    public List<MapToChild> ChildrenTo { get; set; }
}
public class MapToChild
{
    public DateTimeOffset DateTimeOffsetTo { get; set; }
    public string StringTo { get; set; }
}

public class DemoMapper : IMapper<MapFrom, MapTo>
{
    private readonly IMapper<MapFromChild, MapToChild> childMapper;
    
    public DemoMapper(IMapper<MapFromChild, MapToChild> childMapper) => this.childMapper = childMapper;
    
    public void Map(MapFrom source, MapTo destination)
    {
        destination.BooleanTo = source.BooleanFrom;
        destination.IntegerTo = source.IntegerFrom;
        destination.ChildrenTo = childMapper.MapList(source.ChildrenFrom);
    }
}

public class DemoChildMapper : IMapper<MapFromChild, MapToChild>
{
    public void Map(MapFromChild source, MapToChild destination)
    {
        destination.DateTimeOffsetTo = source.DateTimeOffsetFrom;
        destination.StringTo = source.StringFrom;
    }
}

public class UsageExample
{
    private readonly IMapper<MapFrom, MapTo> mapper = new DemoMapper();
    
    public MapTo MapOneObject(MapFrom source) => this.mapper.Map(source);
    
    public MapTo[] MapArray(List<MapFrom> source) => this.mapper.MapArray(source);
    
    public List<MapTo> MapList(List<MapFrom> source) => this.mapper.MapList(source);
    
    public IAsyncEnumerable<MapTo> MapAsyncEnumerable(IAsyncEnumerable<MapFrom> source) =>
        this.mapper.MapEnumerableAsync(source);
}

Also includes IImmutableMapper<TSource, TDestination> which is for mapping to immutable types like C# 9 record's and can also be used for enum types.

public record MapFrom(bool BooleanFrom, int IntegerFrom);
public record MapTo(bool BooleanTo, int IntegerTo);

public class DemoImmutableMapper : IImmutableMapper<MapFrom, MapTo>
{
    public MapTo Map(MapFrom source) => 
        new MapTo(source.BooleanFrom, source.IntegerFrom);
}

Boxed.AspNetCore

Provides ASP.NET Core middleware, MVC filters, extension methods and helper code for an ASP.NET Core project.

Fluent Interface Extensions

ASP.NET Core Fluent Interface Extensions

ILoggingBuilder Extensions

loggingBuilder
    .AddIfElse(
        hostingEnvironment.IsDevelopment(),
        x => x.AddConsole(...).AddDebug(),
        x => x.AddSerilog(...));

IConfiguration Extensions

this.configuration = new ConfigurationBuilder()
    .SetBasePath(hostingEnvironment.ContentRootPath)
    .AddJsonFile("config.json")
    .AddJsonFile($"config.{hostingEnvironment.EnvironmentName}.json", optional: true)
    .AddIf(
        hostingEnvironment.IsDevelopment(),
        x => x.AddUserSecrets())
    .AddEnvironmentVariables()
    .AddApplicationInsightsSettings(developerMode: !hostingEnvironment.IsProduction())
    .Build();

IApplicationBuilder Extensions

application
    .UseIfElse(
        environment.IsDevelopment(),
        x => x.UseDeveloperExceptionPage(),
        x => x.UseStatusCodePagesWithReExecute("/error/{0}/"))
    .UseIf(
        environment.IsStaging(),
        x => x.UseStagingSpecificMiddleware())
    .UseStaticFiles()
    .UseMvc();

SEO Friendly URL's

SEO Friendly URL's for ASP.NET Core

[HttpGet("product/{id}/{title}", Name = "GetProduct")]
public IActionResult GetProduct(int id, string title)
{
    var product = this.productRepository.Find(id);
    if (product == null)
    {
        return this.NotFound();
    }

    // Get the actual friendly version of the title.
    string friendlyTitle = FriendlyUrlHelper.GetFriendlyTitle(product.Title);

    // Compare the title with the friendly title.
    if (!string.Equals(friendlyTitle, title, StringComparison.Ordinal))
    {
        // If the title is null, empty or does not match the friendly title, return a 301 Permanent
        // Redirect to the correct friendly URL.
        return this.RedirectToRoutePermanent("GetProduct", new { id = id, title = friendlyTitle });
    }

    // The URL the client has browsed to is correct, show them the view containing the product.
    return this.View(product);
}

Canonical URL's

Canonical URL's for ASP.NET Core

Boxed.AspNetCore.Swagger

Provides ASP.NET Core middleware, MVC filters, extension methods and helper code for an ASP.NET Core project implementing Swagger (OpenAPI).

Boxed.AspNetCore.TagHelpers

ASP.NET Core tag helpers for Subresource Integrity (SRI), Referrer meta tags, OpenGraph (Facebook) and Twitter social network meta tags. Read more at:

Subresource Integrity (SRI)

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js" 
        asp-subresource-integrity-src="~/js/jquery.min.js"></script>

Social Network Meta Tags

Social TagHelper's using ASP.NET Core

Twitter Cards

<twitter-card-summary-large-image username="@@RehanSaeedUK">

Open Graph (Facebook)

<open-graph-website site-name="My Website"
                    title="Page Title"
                    main-image="@(new OpenGraphImage(
                        Url.AbsoluteContent("~/img/1200x630.png"),
                        ContentType.Png,
                        1200,
                        630))"
                    determiner="OpenGraphDeterminer.Blank">

Boxed.DotnetNewTest

A unit test framework for project templates built using dotnet new.

Install dotnet new based project templates from a directory.
Run dotnet restore, dotnet build and dotnet publish commands.
For ASP.NET Core project templates you can run dotnet run which gives you a HttpClient that you can use to call the app and run further tests.

public class ApiTemplateTest
{
    public ApiTemplateTest() => DotnetNew.Install<ApiTemplateTest>("ApiTemplate.sln").Wait();

    [Theory]
    [InlineData("StatusEndpointOn", "status-endpoint=true")]
    [InlineData("StatusEndpointOff", "status-endpoint=false")]
    public async Task RestoreAndBuild_CustomArguments_IsSuccessful(string name, params string[] arguments)
    {
        using (var tempDirectory = TempDirectory.NewTempDirectory())
        {
            var dictionary = arguments
                .Select(x => x.Split('=', StringSplitOptions.RemoveEmptyEntries))
                .ToDictionary(x => x.First(), x => x.Last());
            var project = await tempDirectory.DotnetNew("api", name, dictionary);
            await project.DotnetRestore();
            await project.DotnetBuild();
        }
    }

    [Fact]
    public async Task Run_DefaultArguments_IsSuccessful()
    {
        using (var tempDirectory = TempDirectory.NewTempDirectory())
        {
            var project = await tempDirectory.DotnetNew("api", "DefaultArguments");
            await project.DotnetRestore();
            await project.DotnetBuild();
            await project.DotnetRun(
                @"Source\DefaultArguments",
                async (httpClient, httpsClient) =>
                {
                    var httpResponse = await httpsClient.GetAsync("status");
                    Assert.Equal(HttpStatusCode.OK, httpResponse.StatusCode);
                });
        }
    }
}