How to resolve 415 Unsupported Media Type for restart workflow WCM REST API?
I am trying to submit a WCM REST call to restart the workflow of a published item. I am following this link from the Knowledge Center:
http://www.ibm.com/support/knowledgecenter/en/SSHRKX_8.5.0/mp/wcm/wcm_rest_crud_workflow.html
I submit a POST request like this:
http://host:port/wps/mycontenthandler/wcmrest/item/item-uuid/restart
with the following headers:
Accept: application/atom+xml
Content-Type: application/atom+xml
But I keep getting a 415 Unsupported Media Type response.
<errors>
<message code="UNSUPPORTED_MEDIA_TYPE_FOR_URI_1" xml:lang="en" text="The specified "Accept" or "Content-Type" values are not supported by the resource at URI wcmrest:item/dcdbc2e1-f34e-400b-802a-8296677e95c8/restart"/>
</errors>
This was working in Portal 8.0 but does not work in Portal 8.5.
Any ideas on how to fix this?
The error suggests the Accept or Content-Type headers you are passing in are not supported for the WCM REST call.
See the following link for supported media types: http://www.ibm.com/support/knowledgecenter/en/SSHRKX_8.5.0/mp/wcm/wcm_rest_media_types.html
Checking with WCM development, they confirmed additional validation checks were added in Portal 8.5 to the REST service. For the restart workflow action, no data is expected with the POST request.
Solution would be to set the Content-Type to text/plain as the POST request does not expect any actual XML or HTML data. Above page will be updated to reflect the correct supported media types.