AsyncAPI channel · Fiserv
· Fiserv Payment Events
/webhooks/checkout
Receives checkout session event notifications for hosted checkout page integrations.
Channel address
/webhooks/checkout
Operations
publish
receiveCheckoutEvent
Receive checkout event notification
Messages
CheckoutCompleted
Notification sent when a hosted checkout session is completed successfully.
Content-Type:
application/jsonCheckoutAbandoned
Notification sent when a hosted checkout session is abandoned or expires.
Content-Type:
application/jsonAbout 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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