Documentation Index
Fetch the complete documentation index at: https://developer.hellgate.io/llms.txt
Use this file to discover all available pages before exploring further.
Commerce V1 uses the CloudEvents 1.0 specification for asynchronous service-to-service communication. Events flow between Commerce and your extension services and processor integrations via the mTLS-secured event bridge.
Event Envelope
All events follow the CloudEvents HTTP binding with these required attributes:
| Attribute | Description |
|---|
ce-specversion | Always 1.0 |
ce-type | Identifies the event (e.g., CardSessionCreated) |
ce-source | Event source URI |
ce-id | Unique event identifier (UUID) |
ce-time | RFC 3339 timestamp |
Content-Type | application/json |
Inbound Events
Events sent to Commerce by your integration services.
| Event | Description |
|---|
CardSessionCreated | Successful card session result |
CardSessionFailed | Card session could not be completed |
TDSResult | Outcome of a 3-D Secure challenge |
Finish | Transaction result from an integration service |
Outbound Events
Events sent by Commerce to your integration services.
| Event | Description |
|---|
CompleteTDSSession | Outcome of a 3-D Secure session |
SessionVoided | A payment session was voided |
StateChanged | Payment state changed |
| Custom Transaction Event | Flow reached a transaction node |
UbersichtEvent | Payment lifecycle notification |
CustomerCreated | A new customer was created |
PaymentMethodSetupChanged | Payment method setup status changed |
SettlementEvent | Settlement activity on a payment |
