Authenticate the client session with a username and password.
object.Authenticate( UserName, Password,
- A string which specifies the username used to authenticate the
- A string which specifies the password which will be used to
authenticate the client session with the server. Not all server
resources require the client to authenticate the session. If you
are using OAuth 2.0 authentication, this parameter specifies the
- An optional value which specifies the authentication method.
If this parameter is omitted, it will use the method specified
by the AuthType property. It may be one
of the following values:
||No client authentication should be performed.
||The Basic authentication
scheme should be used. This option is supported by all servers that
support at least version 1.0 of the protocol. The user
credentials are not encrypted and Basic authentication should
not be used over standard (non-secure) connections. Most web
services which use Basic authentication require the connection
to be secure.
||The Bearer authentication
scheme should be used. This authentication method does not require a
user name and the BearerToken property must specify the
OAuth 2.0 bearer token issued by the service provider. If the access
token has expired, the request will fail with an authorization error.
This function will not automatically refresh an expired token.
A value of zero is returned if the method was successful.
Otherwise, a non-zero error code is returned which indicates the
cause of the failure.
This method will set the Authorization request header for the client session
using the credentials provided by the caller. It will always override any
custom Authorization header value which may have been previously set using the
If both the UserName and Password
parameters specify empty strings, the current authentication type will always be
set to httpAuthNone regardless of the value of
the AuthType parameter. This effectively clears the current
user credentials for the client session.
If you provide a user name and password to the Connect
method, or you set the UserName property and either the
Password or BearerToken property prior
to calling the Connect method, authentication will be
automatically attempted at the time the connection is made. This method
is only required if you do not provide user credentials when the connection
is established and wish to authenticate the client session at a later time.