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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (NIFI-4246) OAuth 2 Authorization support - Client Credentials Grant
Date Tue, 15 Aug 2017 00:43:00 GMT


ASF GitHub Bot commented on NIFI-4246:

GitHub user jdye64 opened a pull request:

    NIFI-4246 - Client Credentials Grant based OAuth2 Controller Service

    Thank you for submitting a contribution to Apache NiFi.
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You can merge this pull request into a Git repository by running:

    $ git pull NIFI-4246

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2085
commit 6a63e544168f2db0059bab9b155ef9e3bd034531
Author: Jeremy Dyer <>
Date:   2017-07-25T14:07:24Z

    NIFI-4246 - Client Credentials Grant based OAuth2 Controller Service


> OAuth 2 Authorization support - Client Credentials Grant
> --------------------------------------------------------
>                 Key: NIFI-4246
>                 URL:
>             Project: Apache NiFi
>          Issue Type: Improvement
>            Reporter: Jeremy Dyer
>            Assignee: Jeremy Dyer
> If your interacting with REST endpoints on the web chances are you are going to run into
an OAuth2 secured webservice. The IETF (Internet Engineering Task Force) defines 4 methods
in which OAuth2 authorization can occur. This JIRA is focused solely on the Client Credentials
Grant method defined at
> This implementation should provide a ControllerService in which the enduser can configure
the credentials for obtaining the authorization grant (access token) from the resource owner.
In turn a new property will be added to the InvokeHTTP processor (if it doesn't already exist
from one of the other JIRA efforts similar to this one) where the processor can reference
this controller service to obtain the access token and insert the appropriate HTTP header
(Authorization: Bearer{access_token}) so that the InvokeHTTP processor can interact with the
OAuth protected resources without having to worry about setting up the credentials for each
InvokeHTTP processor saving time and complexity.

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