Question Re: API hub Workflow API for Cloud Foundry try out failed with error unauthorized in Technology Q&A

API hub Workflow API for Cloud Foundry try out failed with error unauthorized

TikeerGuo — Thu, 09 Jun 2022 11:50:33 GMT

Dear colleagues,

SAP BTP Trial account, using Boster to set up workflow management, then in BAS create workflow mta project and deployed into BTP, can manually start the deployed workflow instance in BTP workflow management, in the mybox can approve the workflow, workflow executed successfully.

Then try to call this instance using API hub Workflow API for Cloud Foundry, configured the environment in API Hub, after then try with post request https://api.workflow-sap.cfapps.ap21.hana.ondemand.com/workflow-service/rest/v1/workflow-instances, error with unauthorized, do you have any idea what's the root cause here?

The client ID and client secret for above screenshot is get from below place(Process Integration Instance).

Error after try out post.

Thank you.

Re: API hub Workflow API for Cloud Foundry try out failed with error unauthorized

jannes_schofeld — Thu, 09 Jun 2022 12:41:56 GMT

Hi tikeer.guo,

why do you use the credentials from the Integration Suite service instance. You would need to take them from the SAP Workflow service instance. If there is no instance yet for Workflow service, you need to create one.

Best regards,

Jannes

Re: API hub Workflow API for Cloud Foundry try out failed with error unauthorized

tobias_breyer — Thu, 09 Jun 2022 13:06:48 GMT

In addition to what Jannes said, you likely have to create a service instance with other scopes than those that come with the service instance by default (which are read-only). See https://help.sap.com/docs/WORKFLOW/e157c391253b4ecd93647bf232d18a83/c74f5ff9065b4baeb700d033602ef1d9.html?locale=en-US

Re: API hub Workflow API for Cloud Foundry try out failed with error unauthorized

TikeerGuo — Fri, 10 Jun 2022 03:41:57 GMT

Thank you, the client id and client secret should be for workflow service. It works now.

Re: API hub Workflow API for Cloud Foundry try out failed with error unauthorized

TikeerGuo — Fri, 10 Jun 2022 03:42:58 GMT

Thank you, after add below code to the workflow instance, it works now.

{

"authorities": [

"WORKFLOW_INSTANCE_START",

"MESSAGE_SEND"

]

}