Defining a REST V2 Resource Operation

webMethods 10.2 | Service Development Help | Working with REST | Configuring a REST Resource Using the URL Template-Based Approach | Defining a REST V2 Resource Operation

To define an operation of a REST V2 resource, you must specify the following:

The format of the URL that REST clients must follow in their requests to Integration Server as the REST server.

The supported HTTP methods.

The associated flow service.

Important: For a REST V2 resource operation, the combination of a URL format and the supported HTTP methods must be unique.

You can associate either a new flow service or an existing flow service to a resource operation. Consider the following while associating a flow service to a REST V2 resource operation:

If you want to associate an existing flow service to a REST V2 resource operation, you must ensure that the dynamic parameter that you specify in the URL format already exists as a variable of type String in the input signature of the particular service. The service that you select need not reside in the same folder as the REST V2 resource.

For information about static and dynamic parameters in a REST V2 resource, see REST Developer’s Guide.

If you rename a flow service associated with REST V2 resource operations and update its references, the impacted resource operations also are updated with the new name of the service.

If you delete the flow service associated with a REST V2 resource operation or if you delete the input variable that is also referenced in the dynamic parameter of the URL format, the operation will not work when invoked by any subsequent client request to Integration Server.

To define a REST V2 resource operation

1. In the Package Navigator view of Designer, click the REST V2 resource for which you want to define the operation.

2. On the REST V2 Resource Configuration tab, click Add.

3. In the Add REST Resource Operation dialog box, specify the following:

Field	Description
REST URL	The URL format that a request from a client application must follow. Designer automatically appends the restv2 directive and the resource name to the URL format.
Service Name	The name of the flow service to associate with the REST V2 resource operation. You can specify a service name in either of the following ways: Browse and select an existing flow service. Specify the fully qualified name of an existing flow service. Specify the name of a new flow service.
HTTP Methods	Select one or more HTTP methods for the REST V2 resource operation. Note: For a resource operation, you can select only from the HTTP methods that are supported for the associated flow service. For information about configuring the supported HTTP methods for an Integration Server service, see Run Time Properties for Services.

4. Click File > Save.

Integration Server validates the details specified for defining the new REST V2 resource operation. If the validation is successful, the new resource operation is added to the REST V2 Resource Configuration tab. Otherwise, Designer shows details of the validation errors, which you must fix before attempting to save the resource operation details again.

Notes:

If you specify a new service name for associating with the REST V2 resource operation, Integration Server creates a flow service and adds it to the same folder as the REST V2 resource when saving the resource operation. In addition, the input signature of the new service includes the dynamic path parameter specified in REST URL.

You can edit the details of an existing REST V2 resource operation by selecting it on the REST V2 Resource Operation tab and clicking Edit.