5 Event Notifications

The IDX Hub uses WebSockets to establish a persistent, full-duplex communication channel between AEMO Australian Energy Market Operator and Market Participants. This enables real time event notifications for messages used in the BPQD delivery.

An event notification includes metadata such as:

• messageContextId

• messageType

• priority

• initiatingParticipantId

IDX can also send Flow Control Events using WebSockets to inform participants of:

• Full recipient queues

• Insufficient delete rates

• Outage notifications

You can subscribe to WebSockets in the IDX interface in the Markets Portal Web applications for registered participants only. Requires access to MarketNet..

For more information, see the IDX Technical Delivery Specification The B2B Procedures: Technical Delivery Specification. Defines the technical requirements for communicating B2B messages between participants using the MSATS B2B Handler or contingency systems..