HttpClient

HttpClient msdn
PowerBI Apiary mock tests
FormUrlEncodedContent response on SO
Calling a Web API From a .NET Client (C#) 2014
HttpClientExtensions.PostAsJsonAsync
HttpRuntime.Cache and HttpClient.GetAsync: The underlying connection was closed
System.Net.Http.HttpRequestException Error while copying content to a stream on SO
scalability with ServicePointManager on SO

using Microsoft.AspNetCore.TestHost

    // test class inherits from IDisposable
    //private TestServer _server;
    //private HttpClient _client;

    // Arrange
    //var hostBuilder = new WebHostBuilder()
    //   .UseEnvironment("Development")
    //   .UseStartup<esw.Checkout.Api.Startup>()
    //   .CaptureStartupErrors(true);

    //_server = new TestServer(hostBuilder);

    //_client = _server.CreateClient();
    //_client.BaseAddress = new Uri(hostBuilder.GetSetting("ApiBase"), UriKind.Absolute);

        
    #region IDisposable Support

    // To detect redundant calls
    //private bool disposedValue = false;

    //protected virtual void Dispose(bool disposing)
    //{
    //    if (!disposedValue)
    //    {
    //        if (disposing)
    //        {
    //            _client.Dispose();
    //            _server.Dispose();
    //        }

    //        // No unmanaged resources to free => no finalizer
    //        // set large fields to null.
    //        _client = null;
    //        _server = null;

    //        disposedValue = true;
    //    }
    //}


    //// This code added to correctly implement the disposable pattern.
    //public void Dispose()
    //{
    //    Dispose(true);
    //}

    #endregion

System.Net.Http issues

System.TypeLoadException: Inheritance security rules violated by type: ‘System.Net.Http.WebRequestHandler’. Derived types must either match the security accessibility of the base type or be less accessible.

dependency on a library that uses System.Net.Http

direct dependency on types in System.Net.Http

I had to:
1. Package Manager Console for ASP.NET Core project over net462
```
Update-Package System.Net.Http -Version 4.4.0-beta-24913-02 -Source https://dotnet.myget.org/F/dotnet-core
```
2. Command line for ASP.NET Core project targetting netcoreapp2.0, netstandard2.0
```
dotnet remove package System.Net.Http -v 4.3.3
dotnet add package System.Net.Http -v 4.4.0-beta-24913-02
```
3. For a standard .Net csproj with .NET framework 4.6.2 removed: ```xml

..\..\..\..\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.6.2\System.Net.Http.dll

```

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