040000 tree 6f4b7ce01e479a4c7957b432dfa20ce9300b7915	dumb_http_server
040000 tree e57dc6d20251d74ce43b19a07c50cf2590b395cd	echo
040000 tree b409d96bfae4e46b33720eb36f96aecff74341ec	echo_async
040000 tree 479136cb99c4b56eb335bd4b0370f1b306e1e73d	http_get