mongoc_gridfs_file_set_metadata - Man Page

void
mongoc_gridfs_file_set_metadata (mongoc_gridfs_file_t *file,
                                 const bson_t *metadata);

• file: A mongoc_gridfs_file_t.
• bson: A bson_t containing metadata for file.

Sets the metadata associated with file.

You need to call mongoc_gridfs_file_save() to persist this change.

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