AsyncAPI channel · Pred
· PRED Real-Time API (Ably WebSocket)
private:user:{userId}
Private per-user channel. Capabilities: presence, subscribe. You may only subscribe to your own user_id channel, and MUST enter Ably Presence first or no order events are delivered.
Provider:PredAsyncAPI: v2.6.0Spec: PRED Real-Time API (Ably WebSocket)Operations: 1Messages: 3
Channel address
private:user:{userId}
Parameters
userId —
Operations
subscribe
onUserOrderEvent
Messages
order-created
Content-Type:
order-updated
Content-Type:
order-cancelled
Content-Type:
About AsyncAPI
The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.
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