bool

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025                        MONGOC_URI_SET_USERNAME(3)

       Sets  the URI's username, after the URI has been parsed from a string. The driver authenticates with this
       username if the password is also set.

       • uri: A mongoc_uri_t.

       • username: The new username.

       Returns false if the option cannot be set, for example if username is not valid UTF-8.

          bool
          mongoc_uri_set_username (mongoc_uri_t *uri, const char *username);