AsyncAPI channel · Fastly · Fastly Streaming, Logging, and Event Surfaces

fanout/subscriber/{channel}

Logical subscriber-side channel representing the delivery of a Fanout PublishItem to subscribers of {channel}. Delivery transport is selected per item via the formats map (http-response, http-stream, ws-message).

Open source AsyncAPI → All Fastly channels Fastly provider profile
Provider: Fastly AsyncAPI: v2.6.0 Spec: Fastly Streaming, Logging, and Event Surfaces Operations: 1 Messages: 1

Channel address

fanout/subscriber/{channel}

Parameters

Operations

receiveFanoutMessage
Receive a Fanout message on a subscribed channel.

Messages

PublishItem
A single Fanout message addressed to a channel. The formats map determines which subscriber transports receive the payload.
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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