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Assistance Required – Workflow API Callout Error from Postman #5920
Description
I’m currently working on triggering a workflow through the Apache Hop REST API using Postman, but I’m encountering the following issue:
ERROR The specified workflow [null] could not be foundBelow are the details of my setup:
Hop version 2.15.0
Hop Server Host: localhost
Port: 8080
Run Configuration: local
API Endpoint Used: /hop/workflows/add
Payload (XML):
<workflow_execution_configuration>
C:/Users/shiva/filename.hwf
<run_configuration>local</run_configuration>
<log_level>BASIC</log_level>
<safe_mode>N</safe_mode>
<clearing_log>N</clearing_log>
<expanding_remote_job>N</expanding_remote_job>
<gathering_metrics>N</gathering_metrics>
</workflow_execution_configuration>
I’ve verified that:
The file path is correct and accessible.
The Hop Server is running and reachable from the browser (http://localhost:8080/hop/status).
Other endpoints (like /hop/status) return expected responses.
Despite this, the API call continues to return the “workflow [null] could not be found” error.
Activity
hansva commentedon Oct 28, 2025
Same reply as on the mail:
Hi there,
Hop server does not allow you to run files from the filesystem directly.
You either have to follow the full flow of first registering the workflow on the server and then executing it. Or what I would suggest is to use a wrapper async web service [1] to trigger the workflow.
Cheers,
Hans
[1] https://hop.apache.org//manual/latest/hop-server/async-web-service.html
shivanandullagaddi commentedon Oct 28, 2025
Hi,
I have followed all the steps that has been mentioned in the Hop documentation, still the problem is same.
is that its is because of Hops version? currently i was using 2.15.0.