dotnet
HttpClient support for specifying local end point
Background
WebRequest class has been deprecated. Deprecation recommendation is to use .Net HttpClient and third party FTP client instead.
Problem
WebRequest supports setting local end point with ServicePoint.BindIPEndPointDelegate. The suggest third party FTP client support setting local IP end point but .Net HttpClient can not replace HttpWebRequest because it does not support setting local IP end point.
Solution
Add support for setting local IP end point for HttpClient or add a list of third party HTTP clients support setting local IP end point to the deprecation recommendation.
An Idea (If HttpClient internally uses TCPClient): Expose the used TCPClient as a property or allow passing a TCPClient to the construction of a HttpClient. This way you can create a custom socket bound to a local end point by passing your own TCPClient or assign your own socket to the HttpClient.TCPClient.Client property Pseudo Code:
var localEndPoint = new IPEndPoint(...);
var socket = new Socket(...);
socket.Bind(localEndPoint);
var httpClient = new HttpClient();
httpClient.TCPClient.Client = socket;
httpClient.Send(...)