Cannot add constructors after adding a handler to httpclient

Question

Why can't I add authentication details after adding a DelegatingHandler?

Prior to adding the DelegatingHandler, I was able to instantiate the HttpClient like so:

var client = new HttpClient{Credentials = ..., BaseAddress = ...};

After having added a DelegatingHandler, I am unable to add Credentials and BaseAddress:

var client = new HttpClient(new RetryHandler(new HttpClientHandler()));
client.BaseAddress = // does not exist!
client.Credentials = // does not exist!

How do we add credentials and a baseaddress to this client?

Answer 1

This is how you can pass credentials into your handler:

var clientHandler = new HttpClientHandler()
{
    Credentials = ...
};

var retryHandler = new RetryHandler(clientHandler);

var client = new HttpClient(retryHandler )
{
    BaseAddress = ...
};