mongoc_gridfs_file_set_content_type()

Synopsis

void
mongoc_gridfs_file_set_content_type (mongoc_gridfs_file_t *file,
                                     const char           *content_type);

file	A mongoc_gridfs_file_t.
str	A string containing the content type.

Sets the content type for the gridfs file. This should be something like "text/plain".

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