Managing HttpClient with Dynamic URL and Authorization in a Layer

I need to have a

Layer

Layer

where I instantiate an

HttpClient

HttpClient

where the base URL is provided externally from the user. After getting said URL, I need to make a request with it and store the

Authorization

Authorization

header too based on the response and use the client for all the next requests.

I was thinking about using a

SynchronizedRef

SynchronizedRef

for the URL and one for the auth token. Is this a good approach o should I approach the problem from another pov?