Liste des évènements qui sont pris en charge dans le callback de Whatsapp sur Omni Contact.  

Event Name	Description
message	Fired when you receive a message. The event contains all data related to the message like content and sender
loading_screen	Fired when your instance is loading
qr	Fired when a new QR code is generated while your instance is in QR status.
authenticated	Fired when the connection is made
auth_failure	Fired if authentication fails
ready	Fired as soon as everything is ready
disconnected	Fired when you disconnect your instance
message_create	Fired when a new message is created. Applies to both, sent and received messages.
message_revoke_everyone	Fired if a message was deleted for everyone
message_revoke_me	Fired if a message was only deleted for you
message_ack	Fired when a message was read or received
message_reaction	Fired when a reaction is sent, received, updated or removed
media_uploaded	Fired when a new media file was upload successfully when sending a message
group_join	Fired when someone is added or joined a group chat
group_leave	Fired when someone is removed or left a group chat
group_update	Fired when the group information is updated
change_state	Fired as additional event when your connection status changes
call	Fired on incoming calls – calls cannot be handled by the API.