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https://issues.apache.org/jira/browse/NIFI-11014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17653063#comment-17653063
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Irudya Raj commented on NIFI-11014:
-----------------------------------

Hi David, 

Appreciate your reply! 

As you described at the end your reply, seems like NiFi needs to support device 
flow grant type which is a potential improvement. 

Would you recommend any workaround for NiFi token? Currently I need to manually 
copy token from NiFi browser cookie to run my backend script.  

> JWT token is rejected by NiFi when calling APIs
> -----------------------------------------------
>
>                 Key: NIFI-11014
>                 URL: https://issues.apache.org/jira/browse/NIFI-11014
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: NiFi Stateless
>    Affects Versions: 1.15.3
>         Environment: NiFi with Keycloak as OIDC provider.
>            Reporter: Irudya Raj
>            Priority: Major
>
> I have created oauth token using spring boot and transferred this token to 
> authorization header bearer. NiFi is configured with PS512 JWS algorithm via 
> nifi.security.user.oidc.preferred.jwsalgorithm property. But the API request 
> fails with message "nifi unable to validate the id token: signed jwt 
> rejected: another algorithm expected, or no matching key(s) found" 
> I am able to use NiFi web. Keycloak is configure to use PS512 algo for ID 
> token and access tokens.



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