move /s/ to fetch blueprint
maintains consistency with api.bp.upload
being only for uploads, api.bp.shorten
being only for shortening, while api.bp.fetch
being only for object(file/shorten) fetching
maintains consistency with api.bp.upload
being only for uploads, api.bp.shorten
being only for shortening, while api.bp.fetch
being only for object(file/shorten) fetching