Session Management

The Flutter Crisp Chat plugin provides several methods to manage chat sessions — set custom data, categorize users with segments, push events, retrieve session identifiers, and reset sessions.

Set Session Data

Store custom key-value pairs in the current session. This data is visible to your support agents in the Crisp dashboard.

String Data

FlutterCrispChat.setSessionString(
  key: 'subscription_plan',
  value: 'premium',
);

Integer Data

FlutterCrispChat.setSessionInt(
  key: 'login_count',
  value: 42,
);

WARNING

Both key and value must be non-empty for setSessionString. The key must be non-empty for setSessionInt. An ArgumentError is thrown otherwise.

Session Segments

Segments categorize users for filtering and targeting in the Crisp dashboard.

// Add segments (appended to existing ones)
FlutterCrispChat.setSessionSegments(
  segments: ['registered_user', 'newsletter_subscriber'],
  overwrite: false, // default
);

// Replace all existing segments
FlutterCrispChat.setSessionSegments(
  segments: ['vip_customer'],
  overwrite: true,
);

Parameter	Type	Default	Description
segments	List<String>	—	List of segment strings
overwrite	bool	false	If true, replaces existing segments. If false, appends.

Push Session Events

Log custom events to the Crisp session timeline. Events are visible in the Crisp dashboard and can be used for tracking user actions.

await FlutterCrispChat.pushSessionEvent(
  name: 'completed_onboarding',
  color: SessionEventColor.green,
);

Available Colors

Color	Value
SessionEventColor.black	Black
SessionEventColor.blue	Blue (default)
SessionEventColor.brown	Brown
SessionEventColor.green	Green
SessionEventColor.grey	Grey
SessionEventColor.orange	Orange
SessionEventColor.pink	Pink
SessionEventColor.purple	Purple
SessionEventColor.red	Red
SessionEventColor.yellow	Yellow

Get Session Identifier

Retrieve the current Crisp session ID. This is useful for logging, debugging, or linking the chat session to your backend.

String? sessionId = await FlutterCrispChat.getSessionIdentifier();
if (sessionId != null) {
  print('Session ID: $sessionId');
}

TIP

The session identifier is cached internally after openCrispChat is called. If the native SDK returns null (e.g., the chat was closed), the cached value is returned instead.

Reset Session

Reset the current chat session. This clears all session data and starts fresh. Call this when your app user logs out to ensure the next user doesn't see the previous user's chat history.

await FlutterCrispChat.resetCrispChatSession();

Important

Always reset the session when a user logs out of your app. Failing to do so means the next user could see the previous user's chat history and personal data.

Typical Flow

// 1. Set session data before opening chat
FlutterCrispChat.setSessionString(key: 'plan', value: 'enterprise');
FlutterCrispChat.setSessionInt(key: 'seats', value: 50);
FlutterCrispChat.setSessionSegments(segments: ['enterprise']);

// 2. Open the chat
await FlutterCrispChat.openCrispChat(config: config);

// 3. Push events during the session
await FlutterCrispChat.pushSessionEvent(
  name: 'viewed_pricing',
  color: SessionEventColor.blue,
);

// 4. Get session ID for logging
String? sessionId = await FlutterCrispChat.getSessionIdentifier();

// 5. Reset on logout
await FlutterCrispChat.resetCrispChatSession();

Next Steps

• Unread Messages — Check for unread messages via the Crisp REST API
• Push Notifications — Set up push notifications