Designer 10.7 | webMethods Service Development Help | Working with REST API Descriptors | OpenAPI-Based Provider REST API Descriptors | Working with Resources | Working with Operations | About Callbacks
 
About Callbacks
When you select Callbacks for an operation, Designer displays the supported callbacks for the operation.
Designer displays the list of the services that describe the notification to be sent for the services along with other details under Callbacks. Each callback service defines the link to the service for which Designer sends the notifications along with the supported Tags, Security schemes, Extensions, and External document details of the specified service.
Callback service details
Integration Server generates the Callback service for each callback operation defined under a REST operation. The format of the callback service signature is the same as defined under the Service section. You must provide the implementation in these callback services to send the notification back to the client. You can use the pub.client:http service if the callback URL uses http or https. For instructions about using this service, see the webMethods Integration Server Built-In Services Reference. You can invoke this callback service by passing the inputs whenever you need to send a callback to the client.