Return Workflow output parameters via ION API

Tim Askerov · 2025-06-25T22:21:17+00:00

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I have built a Workflow that makes a bunch of API calls to other applications and saves the results in output parameters. Now I need to somehow read the values of those parameters after executing the Workflow. My original idea was to execute it by calling the IONSERVICES/process/application/v1/workflow/start API from a custom H5 personalization script. But it looks like it only starts a Workflow instance without returning its output parameters.

So how can I execute my Workflow from an H5 script and get back its output values? If it's not possible then am I going about this all wrong?

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Danil Klemeshov

Hi Tim,

The API you mentioned (IONSERVICES/process/application/v1/workflow/start) returns only the ID of the started workflow instance.
Can you give more details about your use case?

With LN and M3 the integration with workflows goes via sending to ION a workflow Process.BODs. Then, when the workflow is completed, the Acknowledge.BOD will be sent back with output parameters.
Or a Data Flow can be used to start a workflow.

It depends on your use case.

Tim Askerov

Hi Danil,

Thanks for the reply. My use case is rather different in that I am looking to get an immediate response after executing a Workflow or a Data Flow. But it doesn't look like it's possible in this scenario, so I will have to rethink my approach.

Tim

Prabodha Amarapema

How about API flow? The process is real-time. You can encapsulate all the required API calls in the API flow and get the result as JSON

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