DalSoft 

DalSoft.Hosting.BackgroundQueue is a very lightweight .NET Core replacement for HostingEnvironment.QueueBackgroundWorkItem using IHostedService

DalSoft.RestClient - Powerful C# Rest Client A beautiful, dynamic and fluent C# Rest Client for all platforms. Create frictionless code whlist still using the HttpClient you already know.... More information

Use DalSoft.RestClient with ASP.NET Core In-Memory Test Server for integration tests.

Centralized ASP.NET Core Error Handling using Problem Details. Updatable configuration using Options pattern see https://github.com/DalSoft/DalSoft.AspNetCore.WebApi for usage info.