request_subscription_async

Description:

[ Version ( since = "0.15.5" ) ]
public async bool request_subscription_async (Contact[] contacts, string message) throws Error

Request that the given contacts allow the local user to subscribe to their presence, i.e. that their subscribe_state property becomes YES.

For this to work properly this must have interface IFACE_CONNECTION_INTERFACE_CONTACT_LIST.

this	a Connection
contacts	An array of Contact objects to whom requests are to be sent.
message	an optional plain-text message from the user, to send to those `contacts` with the subscription request.
callback	a callback to call when the operation finishes
n_contacts	The number of contacts in `contacts` (must be at least 1)
user_data	data to pass to `callback`