How do I create a password for an online room?

Hi!

I have an online chat with rooms. I need to create a password for an online rooms.

If the password for the room matches the password of the host, then the user enters the room.

Do you have any idea?

I need help :)

You'll need to connect to the room first to be able to verify the password with the host. If it doesn't match, then disconnect.

Otherwise, you'll need an intermediate (matchmaking) lobby/server that has all the rooms and passwords that peers must first connect and validate with before joining further rooms.