Starting process group from Linux for Secured Nifi Instance

[#1]

Hi Friends , 

 I am trying to start a process group from Unix for a secured Nifi instance. I do have my trust store and key store files available but I am not sure how to reference them in the curl command. I read somewhere that I can give the -k option with curl if I want to do away with specifying the certs. So I tried running the following command 

curl -k -X PUT -H 'Content-Type: application/json' -d '{"id":"e3d11d1d-327b-1b5b-96a7-3cb59c48df17","state":"RUNNING"}' https://XXXX:8443/nifi-api/flow/process-groups/e3d11d1d-327b-1b5b-96a7-3cb59c48df17

However I am getting the following error.

curl: (56) Received HTTP code 403 from proxy after CONNECT

I guess I will need to reference my trust store and keystore , can someone help me here on how to do this ?

@Shu_ashu  sir - can you please help me here

@Matt 

[#2]

@abhinav_joshi  NiFi supports "/access/kerberos" for kerberos/spnego negotiation and "/access/token" for username/password to provide token to use with "Authorization: Bearer" in api request.

So you can try to use below calls

1. TOKEN=$( curl -k "https://$HOSTNAME:9091/nifi-api/access/token" -H 'Content-Type: application/x-www-form-urlencoded; charset=UTF-8' --data 'username=xxx@REALM&password=secret' --compressed )

2. curl -v -X GET "https://$HOSTNAME:9091/nifi-api/flow/status" -H "Authorization: Bearer $TOKEN" -H "Connection: close" and so on.