Splunk REST API: Bypass response format check

Splunk Enterprise

I am trying to host Prometheus metrics on a Splunk app such that the metrics are available at `.../my_app/v1/metrics` endpoint.

I am able to create a handler of type PersistentServerConnectionApplication and have it return Prometheus metrics. The response status, however, code = `500` and content = `Unexpected character while looking for value: '#'`

Prometheus metrics do not confirm to any of the supported `output_modes`

(atom | csv | json | json_cols | json_rows | raw | xml)

so I get the same error irrespective of the output mode chosen.

Is there a way to bypass the output check? Is there any other alternative to host a non-confirming-format output via a Splunk REST API?

Get Updates on the Splunk Community!

Deep Dive: Accelerate threat investigation with Splunk’s AI Assistant in Security

AI is one of the biggest topics in the market today, and for security teams, its value goes far beyond the ...

Announcing Modern Navigation: A New Era of Splunk User Experience

We are excited to introduce the Modern Navigation feature in the Splunk Platform, available to both cloud and ...

Detection Engineering Office Hours: Real-World Troubleshooting & Q&A

[REGISTER HERE] This thread is for the Community Office Hours session on Detection Engineering Office Hours: ...