Server-Sent Events (SSE)

Receive real-time events via Server-Sent Events (SSE)

Key Features:

• URL configuration for event receipt
• Granular selection of event types
• Advanced message filtering
• Additional URL parameters
• Multiple webhook management

Available Events:

• connection: Changes in connection state
• history: Receiving message history
• messages: New messages received
• messages_update: Updates to existing messages
• call: VoIP call events
• contacts: Contact list updates
• presence: Presence status changes
• groups: Group modifications
• labels: Label management
• chats: Chat events
• chat_labels: Chat label changes
• blocks: Blocks/unblocks
• leads: Lead updates

Establishes a persistent connection to receive real-time events. This endpoint:

1. Requires authentication via token

2. Keeps an HTTP connection open with the client

3. Sends events as they occur on the server

4. Supports different event types

Usage example:

const eventSource = new
EventSource('/sse?token=YOUR_TOKEN&events=chats,messages');


eventSource.onmessage = function(event) {
  const data = JSON.parse(event.data);
  console.log('New event:', data);
};


eventSource.onerror = function(error) {
  console.error('Error in SSE connection:', error);
};

Event structure:

{
  "type": "message",
  "data": {
    "id": "3EB0538DA65A59F6D8A251",
    "from": "5511999999999@s.whatsapp.net",
    "to": "5511888888888@s.whatsapp.net",
    "text": "Hello!",
    "timestamp": 1672531200000
  }
}