Each participant in a Conversation is represented by a User object and must be authenticated by the Client SDK. In a production application, you would typically store this user information in a database.
Execute the following commands to create two users,
Bob who will log in to the Nexmo Client and participate in the chat (Conversation).
vonage apps:users:create Alice vonage apps:users:create Bob
This will return user IDs similar to the following:
User created: USR-aaaaaaaa-bbbb-cccc-dddd-0123456789ab
There is no need to remember this user ID because you will use user names (instead of user IDs) to add them to the conversation.
Creating an iOS chat appCreate a iOS application that enables users to message each other