How do I add a file to http using ipfs? (without path)

22 
> echo "hello worlds" | curl -X POST -F file=@- "http://localhost:5001/api/v0/add"
{"Name":"-","Hash":"QmZ4tDuvesekSs4qM5ZBKpXiZGun7S2CYtEZRB3DYXkjGx","Size":"21"}
> ipfs cat QmZ4tDuvesekSs4qM5ZBKpXiZGun7S2CYtEZRB3DYXkjGx
hello worlds