Live time-series parameter data for a subscribed topic / stream /
parameter. The client opens the subscription by invoking the hub method
`SubscribeToParameter(topicName, streamId, parameterId)` (wildcard `*` is
supported for topic, stream, and parameter), and the server pushes a
`ParameterDataReceived` event for each matching batch of samples until
`UnsubscribeFromParameter(...)` is invoked.
Receive pushed parameter data (ParameterDataReceived).
Messages
SubscribeToParameter
Client-to-server SignalR invocation to subscribe to parameter data.
Content-Type: application/json
ParameterDataReceived
A batch of time-series parameter samples pushed by the hub.
Content-Type: application/json
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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