1999 Camaro Key chip code

Hi and HELP!!!
I JUST PURCHASED A 99 CAMARO AND HAD ONLY ONE SET OF KEY GIVEN TO ME AND YOU GUESSED IT! KEYS LOST OR TAKEN LAST NIGHT. HOW DO I GET THE KEY CODE FOR THE CHIP SO A LOCKSMITH MAY REPLACE OR ANY OTHER IDEAS APPRECIATED. THANKS.

the only place i have ever heard of them being available through is the dealer.

i could be wrong, but i doubt you will find a locksmith that could make you one of these keys