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bsn.HttpClientSync

.NET Library providing sync (blocking) calls on top of legacy HttpClient (before .NET 6.0).

This library should be able to avoid soft deadlocks and reduce threadpool starvation compared to calling .Result on tasks returned from async methods.

Links

Description

The library works by using a custom HttpClientHandler which processes the request in a sync fashion.

In order to be compatible with the original HttpClient, the library invokes the private methods CreateAndPrepareWebRequest and CreateResponseMessage of the HttpClientHandler class. Furthermore, the response content is replaced by a custom SyncStreamContent which ensures that serializing/buffering will be done synchronously.

HttpClient instantiation for sync operations

var client = new HttpClient(new HttpClientSyncHandler());

Invoke sync HTTP call

using var request = new HttpRequestMessage(HttpMethod.Get, "https://1.1.1.1/");
using var response = client.Send(request);
// use the response here
// response.Content.ReadAsStream()
// response.Content.ReadAsByte[]()
// response.Content.ReadAsString()

FAQ

  • Q: Is the sync functionality on par with the .NET 6 implementation?
    • A: No. Some methods may still use async code somewhere. However, the common code paths should run synchroneously and avoid common deadlock issues. Your mileage may vary.

Source

https://github.com/avonwyss/bsn.HttpClientSync

License