KNIME REST API: JSON Output empty despite successful execution

KNIME Business Hub
1

Dear KNIME Support Team,

I am currently working with a deployed KNIME workflow that is triggered via the REST API. While the execution of the workflow appears to be successful (status 200 and no error messages), I am not receiving any JSON output in the response body.

In the KNIME Analytics Platform, the workflow returns the expected output at the end node (e.g., JSON Writer or Table to JSON). However, when I trigger the same workflow through the REST endpoint, the response body is empty.
this is workflow-

image
image750×438 32.9 KB

Hier ist the output body -
image

and hier is the exemple body(the result should be like this )-
image

Thank you in advance for your support.

Best regards,

2

Hello @Mahtab_Uddin ,

Welcome to the Forum!
Would it be possible to try to call the workflow using a third party tool (e.g. Postman) and not from the Swagger page ?

If it still doesn’t work from Postman, can you please provide me a sample test workflow that I could use for reproduction and the used KNIME Business Hub / Executor version?

Thank you,
Dora

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