Deprecated since version 1.18.0: Use mongoc_server_description_hello_response() instead.

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025             MONGOC_SERVER_DESCRIPTION_ISMASTER(3)

       The  client  or client pool periodically runs a "hello" command on each server, to update its view of the
       MongoDB          deployment.          Use           mongoc_client_get_server_descriptions()           and
       mongoc_server_description_hello_response() to get the most recent "hello" response.

       • description: A mongoc_server_description_t.

       A  reference  to a BSON document, owned by the server description. The document is empty if the driver is
       not connected to the server.

          const bson_t *
          mongoc_server_description_ismaster (
             const mongoc_server_description_t *description);

          Deprecated since version 1.18.0: Use mongoc_server_description_hello_response() instead.