Ocamlnet 3 Reference Manual : Http_client.basic_auth_handler

# Class Http_client.basic_auth_handler

    class basic_auth_handler : ?enable_auth_in_advance:bool -> #key_handler -> auth_handler

Basic authentication. Authentication information is obtained by the passed key_handler.

`enable_auth_in_advance`: If set to `true`, authentication can be done in advance, i.e. before the server requests authentication. This reduces the number of messages exchanged with the server, but may be an additional security risk.