Java – 401 Unauthorized error in retrofit?

Error 401 unauthorized indicates that the request was rejected due to invalid credentials. I’m using the makeover to make a request to the https URL and get a 401 unauthorized/get when executing curl https://external:[email protected]/user It works perfectly for me (getting the expected output).

There is nothing wrong with the Retrofit implementation in my application because the other calls work fine. Is this something I can’t pass such a URL to retrofit.setEndpoint?

Retrofit may not support putting usernames and passwords in URLs (for security reasons).
This authentication is called basic authentication, and you can also pass these parameters in the HTTP header.

Here’s an article on how to do this in Retrofit: https://futurestud.io/blog/android-basic-authentication-with-retrofit/