Apache Nifi Rest Api Authorization

[#1]

I want to stop a processor on the same machine  with restApi but I get an authorization error when I call the rest api.I can solve this problem with bearer token, but since the token has expired, I need to change the bearer  token manually again.Is there a way I can authorize automatically?

• I am using the executeScript processor when calling the API.Script engine is Groovy.
• My Nifi version 1.23.2 and Nifi is secure  and not clustered.I login with ldap on UI.

This is the part where I call the API in the script:

def post = new URL(NifiBaseUrl.value + NifiComponentId.value).openConnection();
post.setSSLSocketFactory(sslContext.getSocketFactory())
post.setRequestMethod("PUT")
post.setDoOutput(true)
post.setRequestProperty("Content-Type", "application/json")
post.getOutputStream().write(content.getBytes("UTF-8"));
post.getResponseCode()

Error:

java.io.IOException: Server returned HTTP response code: 401 for URL

[#2]

@Salmidin 

Please create a new community question with the details of your issue. It seem unrelated to this thread issue.  The "Policies" missing from the global menu indicates your NiFi is either using Single User Authorizer (default out of box) or is not setup to be secure.

NiFi needs to be configured with a production ready authorizer for the "Polices" and "Users" options to be visible in the NiFi Global menu.

Fell free to ping me @MattWho in your new community question.

Thanks,
Matt

[#3]

@MattWho 

I create a user with certificate DN.As you said, I gave this user "execute code" permission.This way the problem is solved.

The problem was not solved without creating a user