Adding and Deleting Attachments using the Task Gateway Service

To add an attachment to the Workflow item using the service:

1. On the SAP Gateway system, go to transaction SPRO and choose SAP Reference IMG.

2. Navigate to  SAP NetWeaver   SAP Gateway  OData Channel Development with IW_BEP  Registration .

   Note

   If your system is based on SAP NetWeaver 7.40 or higher, you do not need to install the component IW_BEP since the SAP Gateway Foundation component SAP_GWFND is installed as standard. If this applies to your system landscape, navigate to  SAP NetWeaver  SAP Gateway  OData Channel  Administration  General Settings  Activate and Maintain Services .

3. Open the Activate And Maintain Services activity.

4. Select the service with the description Task Gateway Service. Two Task Gateway Service versions are available. For more information about the Task Gateway Service versions, see Task Gateway Service.

5. Choose Call Browser. The service’s base URL is displayed in your browser.

6. If the SAP GUI Security window is displayed, allow the action to proceed.

7. To add the multiple origin option, add ;mo to the service name in the URL:

   Sample Code

   TaskCollection(‘SAP__Origin = ‘<system_alias>’, InstanceID=’<workitem id>’)/Attachments

8. Execute a POST request on the obtained URL with the attachment content as the request body and the following request header parameters:

   • slug – file name without extension

   • Content-Type – MIME type of the attachment

To delete an attachment from the Workflow item using the service:

1. On the SAP Gateway system, go to transaction SPRO and choose SAP Reference IMG.

2. Navigate to  SAP NetWeaver   SAP Gateway  OData Channel Development with IW_BEP  Registration .

   Note

   If your system is based on SAP NetWeaver 7.40 or higher, you do not need to install the component IW_BEP since the SAP Gateway Foundation component SAP_GWFND is installed as standard. If this applies to your system landscape, navigate to  SAP NetWeaver  SAP Gateway  OData Channel  Administration  General Settings  Activate and Maintain Services .

3. Open the Activate And Maintain Services activity.

4. Select the service with the description Task Gateway Service. Two Task Gateway Service versions are available. For more information about the Task Gateway Service versions, see Task Gateway Service.

5. Choose Call Browser. The service’s base URL is displayed in your browser.

6. If the SAP GUI Security window is displayed, allow the action to proceed.

7. Navigate to the attachment’s content by adding the following to the service’s base URL:

   Sample Code

   AttachmentCollection(SAP__Origin = ‘<system_alias>’, InstanceID='<workitem_id>',id='<Attachment_id>')/$value

8. Execute a DELETE request on the obtained URL.