User
name
physicalAddress
Session
name
shortId - String, unique
lecturer - User
participants - List<User>
stream - Stream
chat - List<Messages>
Message
text
user - User
Stream
text
audioLink
localhost:8080
/sessions/...
/users/...
localhost:8081 (chat)
shortId as room
add user
user joined
new message
user left
localhost:8082 (stream)
shortId as room
stream
stream status
add user
user left
JSON Web Token (JWT)