2N Helios IP HTTP API v2.6 - Manual (Page 14)

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2N TELEKOMUNIKACE a.s., www.2n.cz
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DATETIME_OR_DURATION
Set the subscription time. Subscription will be cancelled automatically by when this
time period expires. Send the Renew request before expiry to extend the subscription
time. Enter the absolute time (DateTime) or relative duration (Duration) to specify the
subscription time; refer to the Format of Selected Parameters subsection. The
parameter is obligatory.
EVENTS_LIST
Make up a list of requested events. Separate the event types with a comma, e.g.
event2n:KeyPressed, event2n:CardEntered. The parameter is optional. If you define no
events, you will get all types of events.
MAX_NUMBER_OF_MSGS_AT_ONCE
Set the maximum count of events to be sent within one Notify message. The
parameter is optional. If no value is completed, up to 10 events will be sent in one
Notify message.
SIMPLE_MSGS_ENABLED_FLAG
Specify the format of event elements to be sent in the Notify message. If you set 0,
the ONVIF standard (extended messages) will be applied. If you set 1, a more efficient
format will be used (as described herein). The parameter is optional. If no value is
defined, a more efficient format is used.
START_TIMESTAMP
Set the data and time for the oldest log event to be the first in the Notify message. The
parameter is optional. If no value is set, all log events will be sent.
START_RECORD_ID
Set the RecordId for the log event to be the first in the Notify message. This parameter
can only be used together with the START_TIMESTAMP parameter. The parameter is
optional. If no value is set, all log events starting with the time specified in the
START_TIMESTAMP parameter will be sent.
SubscribeResponse
2N Helios IP sends the SubscribeResponse message in reply to the Subscribe request
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to inform the client that the client’s subscription has been completed successfully.