question Re: Interacting with Nifi Paramater Context using InvokeHTTP - Getting error in Support Questions

Interacting with Nifi Paramater Context using InvokeHTTP - Getting error

rajivswe_2k7 — Thu, 20 Mar 2025 12:54:58 GMT

Hi Team,

I am trying to develop a flow to update the Parameter context on the fly using the InvokeHTTP Processor. Based on the screenshot i have configured the same. However i am getting unAuthorized Error.

My URL format is like : https://<nifi-host>:<port>/nifi-api/parameter-contexts/<context-id>

Error Screenshot.

Re: Interacting with Nifi Paramater Context using InvokeHTTP - Getting error

MattWho — Thu, 20 Mar 2025 17:02:20 GMT

@rajivswe_2k7

The error you shared points to an authorization issue.
With a secured (https) enabled NiFi all actions must be performed by an authenticated and authorized user/client.

When using the invokeHTTP processor the configured SSL Context service keystore provides the authenticated client via the clientAuth private key entry.

That client is not authorized view on the specific parameter context.

So while your user that authenticated into the NiFi UI may be authorized to create and modify a parameter context, that does not mean a processor executed by that user nor inherits some special authorization.

Your client derived from the keystore will need to be authorized to both view and modify the parameter context. You should check the nifi-user.log for the not authorized action which will show you the client identity which is missing the required authorizations on the parameter context.

Please help our community grow. If you found any of the suggestions/solutions provided helped you with solving your issue or answering your question, please take a moment to login and click "Accept as Solution" on one or more of them that helped.

Thank you,
Matt

Re: Interacting with Nifi Paramater Context using InvokeHTTP - Getting error

rajivswe_2k7 — Thu, 27 Mar 2025 10:04:48 GMT

Thank you @MattWho . I have seen the user logs and i am seeing the Authedication is success for all the event. Still getting the error.

2025-03-27 09:55:58,285 INFO [NiFi Web Server-261648] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=e58d4bb03c8809e4505dabe6319387cf, dt.
span_id=653728c3fb282dfb] Authentication Started my-ip [<rgand645><CN=my-nifi, O=Internal Intern
ational Inc., L=Bethesda, ST=Maryland, C=US>] GET https://my-nifi:8443/nifi-api/flow/controller/bulletins
2025-03-27 09:55:58,285 INFO [NiFi Web Server-261648] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=e58d4bb03c8809e4505dabe6319387cf, dt.
span_id=653728c3fb282dfb] Authentication Success [rgand645] my-ip GET https://my-nifi:8443/nifi-api/flow/
controller/bulletins
2025-03-27 09:55:58,287 INFO [NiFi Web Server-278014] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=32098e8d185d12d4fc5bf343e6f48820, dt.
span_id=bd1992a5aba5bcd1] Authentication Started my-ip [<rgand645><CN=my-nifi, O=Internal Intern
ational Inc., L=Bethesda, ST=Maryland, C=US>] GET https://my-nifi:8443/nifi-api/flow/process-groups/a9b83e0e-0195
-1000-0000-0000734310f5
2025-03-27 09:55:58,287 INFO [NiFi Web Server-278014] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=32098e8d185d12d4fc5bf343e6f48820, dt.
span_id=bd1992a5aba5bcd1] Authentication Success [rgand645] my-ip GET https://my-nifi:8443/nifi-api/flow/
process-groups/a9b83e0e-0195-1000-0000-0000734310f5
2025-03-27 09:55:58,290 INFO [NiFi Web Server-265066] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=5b7b196ee1f35065a8f2e3adf8b1b1eb, dt.
span_id=73570aa3b370865b] Authentication Started my-ip [<rgand645><CN=my-nifi, O=Internal Intern
ational Inc., L=Bethesda, ST=Maryland, C=US>] GET https://my-nifi:8443/nifi-api/flow/status
2025-03-27 09:55:58,290 INFO [NiFi Web Server-265066] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=5b7b196ee1f35065a8f2e3adf8b1b1eb, dt.
span_id=73570aa3b370865b] Authentication Success [rgand645] my-ip GET https://my-nifi:8443/nifi-api/flow/
status
2025-03-27 09:55:58,290 INFO [NiFi Web Server-261648] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=d19eaae1f387574329dd230274ce1112, dt.
span_id=9e3f0301601331a0] Authentication Started my-ip [<rgand645><CN=my-nifi, O=Internal Intern
ational Inc., L=Bethesda, ST=Maryland, C=US>] GET https://my-nifi:8443/nifi-api/flow/current-user
2025-03-27 09:55:58,290 INFO [NiFi Web Server-261648] o.a.n.w.s.NiFiAuthenticationFilter [!dt dt.trace_sampled=true, dt.trace_id=d19eaae1f387574329dd230274ce1112, dt.
span_id=9e3f0301601331a0] Authentication Success [rgand645] my-ip GET https://my-nifi:8443/nifi-api/flow/
current-user

Re: Interacting with Nifi Paramater Context using InvokeHTTP - Getting error

rajivswe_2k7 — Wed, 02 Apr 2025 08:44:29 GMT

It seems after i have added necessary permission, i am able to access the context parameter via invoke HTTP