Messaging — CAP Best Practices

Primary reference: https://cap.cloud.sap/docs/guides/messaging/ Event Mesh: https://cap.cloud.sap/docs/guides/messaging/event-mesh

Defining events in CDS

// In the emitting service
service OrderService {
  entity Orders as projection on db.Orders;

  // Declare events (these become CloudEvents topics)
  event OrderSubmitted {
    orderID   : UUID;
    customer  : String;
    amount    : Decimal(9,2);
    currency  : String(3);
  }