Rocketchat Jira oauth integration

Hi,

I am playing around to reach my goal to identify all users and roles from the internal Jira-Directory as Hipchat did before. We do not want to use the Crowd from Atlassian (I know there is support on it in Rocketchat already).

I did the following:

• in Jira, I Created a incoming-only application link:
  -> url = base url of our rocketchat-instance
  -> consumer_key = access_token
  -> public_key as explained here: https://developer.atlassian.com/server/jira/platform/jira-rest-api-example-oauth-authentication-6291692/
  -> consumer-callback-URL as provided in rocketchat oauth custom area

• in rocketchat, the following settings were done:
  -> URL: base-URL of Jira
  -> Token-Path base-URL of Jira/plugins/servlet/oauth/access-token
  -> Token send over User-Data (also tried with Header)
  -> Authorization-Path: base-URL of Jira/plugins/servlet/oauth/authorize
  -> param name of token: access_token
  -> private key: the private key of the public key which is provided at the Jira-instance
  -> field for username: username

(see https://developer.atlassian.com/server/jira/platform/jira-rest-api-example-oauth-authentication-6291692/)

However, I get the following error:

WARN anonymous 743x1356589x1 191gj9b 1.2.3.4 /plugins/servlet/oauth/authorize [c.a.o.s.i.servlet.authorize.AuthorizeServlet] Problem encountered authenticating OAuth client for url "https:// base-URL of Jira /plugins/servlet/oauth/authorize", error was "parameter_absent", with parameters "{oauth_parameters_absent=oauth_token, oauth_problem=parameter_absent}"

Can anyone help me?

We can try all together and then, would have a new Oauth-Plugin maybe for Rocketchat which would help others, too

Thanks
Ronny

Start by reproducing the Jira OAuth flow using the listed application-link and Rocket.Chat custom OAuth settings, then compare the request with Jira’s OAuth authentication example. Investigate why Jira reports the missing oauth_token parameter; done means the integration authenticates successfully and can identify Jira-directory users and roles.