const bson_value_t * mongoc_gridfs_file_get_id (mongoc_gridfs_file_t *file);
- file: A mongoc_gridfs_file_t.
Fetches the id of a gridfs file.
The C Driver always uses an ObjectId for _id, but files created by other drivers may have any type of _id.
Returns a bson_value_t that should not be modified or freed.
2017-present, MongoDB, Inc
Feb 04, 2021 1.17.4 libmongoc