Synercoding.HostExtensions 1.0.0-alpha02

.NET Standard 2.0
This is a prerelease version of Synercoding.HostExtensions.
Install-Package Synercoding.HostExtensions -Version 1.0.0-alpha02
dotnet add package Synercoding.HostExtensions --version 1.0.0-alpha02
<PackageReference Include="Synercoding.HostExtensions" Version="1.0.0-alpha02" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Synercoding.HostExtensions --version 1.0.0-alpha02
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: Synercoding.HostExtensions, 1.0.0-alpha02"
#r directive can be used in F# Interactive, C# scripting and .NET Interactive. Copy this into the interactive tool or source code of the script to reference the package.
// Install Synercoding.HostExtensions as a Cake Addin
#addin nuget:?package=Synercoding.HostExtensions&version=1.0.0-alpha02&prerelease

// Install Synercoding.HostExtensions as a Cake Tool
#tool nuget:?package=Synercoding.HostExtensions&version=1.0.0-alpha02&prerelease
The NuGet Team does not provide support for this client. Please contact its maintainers for support.


Most of the tasks are build so the can be executed in sync and async code. Before calling Run or RunAsync on the IHost, you can call the different extension methods.

If you are for example running a website using EF Core & migrations:

  • You can call ExecuteOnDevelopment (from Synercoding.HostExtensions) with in it a call to MigrateDbContext (from Synercoding.HostExtensions.EntityFrameworkCore) and execute the development seed method.
  • If the environment isn't development, but instead testing, then the testseed will be executed.
  • And if non of those apply, only the migration will be executed.
public class Program
    public static async Task Main(string[] args)
        await CreateHostBuilder(args)
            .ExecuteOnDevelopment(host => host.MigrateDbContext<MyContext>(DevelopmentSeeder))
            .ElseIf(host => IsTestingEnvironment(host), host => host.MigrateDbContext<MyContext>(TestingSeeder))
            .Else(host => host.MigrateDbContext<MyContext>())

    private static bool IsTestingEnvironment(IHost host)
        => host.Services.GetRequiredService<IHostEnvironment>().IsEnvironment("Testing");

    private static Task DevelopmentSeeder(MyContext context, IServiceProvider services)
        // Development seed method here
        return Task.CompletedTask;

    private static Task TestingSeeder(MyContext context, IServiceProvider services)
        // Testing seed method here
        return Task.CompletedTask;

    public static IHostBuilder CreateHostBuilder(string[] args) =>
            .ConfigureWebHostDefaults(webBuilder =>
Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net461 net462 net463 net47 net471 net472 net48
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
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Learn more about Target Frameworks and .NET Standard.

NuGet packages (2)

Showing the top 2 NuGet packages that depend on Synercoding.HostExtensions:

Package Downloads

A library that contains extensions for Microsoft.Extensions.Hosting.IHost for EF Core.


A library that contains extensions for Microsoft.Extensions.Hosting.IHost for EF.

GitHub repositories

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Version Downloads Last updated
1.0.0-alpha02 514 5/18/2020
1.0.0-alpha01 184 5/18/2020

- Added .ElseIf and .Else extensions
     - Added missing ExecuteIf async params combination overload