Primary channel for receiving all subscribed Slack events. Events are delivered as HTTP POST requests wrapped in an event callback envelope containing metadata about the event and the inner event payload. Your app must respond with HTTP 200 within 3 seconds. If not acknowledged, Slack retries up to 3 times with exponential backoff.
An event callback payload from the Slack Events API
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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