Your application's uid
1Agent UID to invoke. Can be a plain agentUid or composite agentUid::sessionUid.
Message to send to the agent. When messageType is 'user' (default), appears as a visible user message in the conversation. When messageType is 'system', used as an invisible prompt that triggers the agent without appearing in the conversation.
Message type. 'user' (default) sends a visible user message. 'system' sends an invisible prompt (like an icebreaker) that triggers the agent without appearing in the conversation.
user, system Direct Firestore human UID. Mutually exclusive with other user identifiers.
External system user identifier. Valid characters are A-Za-z0-9_-. Mutually exclusive with other user identifiers.
100SDK user email address. Mutually exclusive with other user identifiers.
100User's actual email address for SSO or email-based auth. Mutually exclusive with other user identifiers.
100