const bson_t *

       MongoDB, Inc

       2009-present, MongoDB, Inc.

1.30.4                                            Jun 08, 2025          MONGOC_CHANGE_STREAM_GET_RESUME_TOKEN(3)

       The  returned  bson_t  is  valid  for  the  lifetime  of  stream  and  its  data  may   be   updated   if
       mongoc_change_stream_next() is called after this function. The value may be copied to extend its lifetime
       or preserve the current resume token.

       • stream: A mongoc_change_stream_t.

       A bson_t that should not be modified or freed.

       Returns NULL if no resume token is available. This is possible if the change stream has not been iterated
       and neither resumeAfter nor startAfter options were specified in the watch function.

          const bson_t *
          mongoc_change_stream_get_resume_token (mongoc_change_stream_t *stream);

       This  function  returns  the  cached  resume  token,  which  may  be  passed as either the resumeAfter or
       startAfter option of a watch function to start a new change stream from the same point.