REST API Authentication On Atlassian using Keycloak as OAuth Provider

Enhance API Security for Jira REST APIs with OAuth/API Token plugin will let you authenticate any application (Jira, Confluence, Bitbucket) APIs using any third-party OAuth/OIDC provider or API Tokens. The app supports Azure AD, Keycloak, Okta, AWS Cognito, Google, Github, Slack, Gitlab, Facebook, and any custom provider.

Atlassian provides REST APIs to perform several operations such as Create Page, Delete Page, Add Comment, Create Space, etc. However, it supports only two authentication methods for REST APIs:

1. Basic Authentication

2. Using OAuth 1.0

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Video Setup Guide

Download and Installation

Log into your Atlassian instance as an admin.
Navigate to the settings menu and click Manage Apps.
Click Find new apps or Find new add-ons from the left-hand side of the page.
Locate Enhance API Security for Jira REST APIs with OAuth/API Token app.
Click Try free to begin a new trial or Buy now to purchase a license.
Enter your information and click Generate license when redirected to MyAtlassian.
Click Apply license.

Step 1: Configure Keycloak server:

In your Keycloak admin console, select the realm that you want to use.
Go to Clients in the left navigation bar and click on Create.

Rest API OAuth, API token, API Key authentication for Jira and Confluence Keycloak Registration

Enter the ClientID and select the client protocol as OpenID-connect and click on Save.

Rest API OAuth, API token, API Key authentication for Jira and Confluence Keycloak

Select access type as Confidential, enter the redirect URL and click on save (Enter the Application's Base URL).
To get Client Secret Navigate to Clients, select Client Id and navigate to the Credentials tab.

Note: Copy the ClientID and Client Secret.

Step 2: Fetch Access token through POSTMAN:

Open the Postman Application (Here is the link to download Postman Application).
Go to Authorization tab.
From the dropdown select type as OAuth 2.0 and click on Get access token.
Add the following information from the table below.
Postman starts the authentication flow and prompts you to use the access token.
Select Add token to the header.

Grant type	Authorization Code or Client Credentials
Callback URL	Enter the Application's base URL if you dont have a callback URL
Auth URL	https://{host_name}/auth/realms/{realm_name}/protocol/openid-connect/auth
Access token URL	https://{host_name}/auth/realms/{realm_name}/protocol/openid-connect/token
Client ID	Enter the Keycloak Client ID
Client secret	Enter the Keycloak Client secret
Scope	openid
Client Authentication	Send as Basic Auth Header

Note: For Host_name and Realm_name enter the Keycloak hostname and realmname.

Rest API OAuth, API token, API Key authentication for Jira and Confluence Google Apps Access Token

Copy the Access Token or click on Use Token.
A sample access token from Keycloak Provider looks like this.

A834c0606ba71336423013699db8e971

Step 3: Fetch Username through Keycloak:

Choose the method type as "GET".
Enter the interoception Endpoint from the plugin to fetch the username in the Request URL. For Keycloak it is " https://{host_name}/auth/realms/{realm_name}/protocol/openid-connect/userinfo".
Go to the Authorization tab select the Bearer Token and enter the access token here.
Add the header "content-type: application/json" and click on Send.

Rest API OAuth, API token, API Key authentication for Jira and Confluence Username

Request:

     curl 
                        -X GET 
                        -H "Authorization: Bearer <Access Token>" 
                        -H "Content-type: application/json" 
                        https://{hostname}/auth/realms/{realm_name}/protocol/openid-connect/userinfo

Copy the attribute value against the username, you will need to configure it in plugin. In this example, the value is "preferred_username".

Step 4: Configure the Rest API plugin:

1: Enable Rest API Authentication:

After installing the app, click on Configure to configure plugin.
Select the Authentication type and navigate to Oauth/OIDC tab, then click on Configure.
From the drop down select Keycloak as OAuth Provider.
Enter the Host Name and the Realm name from Keyclok.
Enter the attribute value against which we received the username in the Postman response.
Save the settings.
Now navigate to the Global Settings tab.
Here you will have to Enable the Authentication through Enable REST API Authentication and click on Save.
To configure the username attribute, click on Get username/email Attribute button.

Paste the OAuth 2.0 Access token obtained from the OAuth provider and click on Get response.
In the received response, copy the JSON attribute against which you are receiving the username/email of the user in the local directory and paste it into the Username/Email Attribute input field, and click on Save.

Step 5: Test REST API using access token:

API keys and Tokens can be tested with the Test tokens feature. Select the type - Basic/Bearer, paste the token and click on Test token button.

Rest API OAuth, API token, API Key authentication for Jira and Confluence Confluence-Rest-API-AzureAD B2C

Click here to get a FREE TRIAL of Confluence REST API Plugin

Call Confluence REST API endpoint. Include the access token in the Authorization header. Here’s an example of fetching content from Confluence.
Go to the Postman application select method type as GET and enter the Request URL. For eg. http://{Confluence_Base_URL}/confluence/rest/api/content/
In the Authorization tab select type as Bearer Token.

In the Header tab add the header “content-type: application/json and send the request.

Request:

     curl
                        -X GET
                        -H "Authorization: Bearer <Access Token>"
                        -H "Content-type: application/json"
                        http://{confluence_base_url}/confluence/rest/api/content/

This will show the content in Confluence and will return the status 200.

If the token is invalid or missing, the call will return a 401 Unauthorized response

Click here to get a FREE TRIAL of Bitbucket REST API Plugin

Call Bitbucket REST API endpoint. Include the access token in the Authorization header. Here’s an example of fetching content from Bitbucket.
Go to the Postman application select method type as GET and enter the Request URL. For eg. http://{Bitbucket_Base_URL}/rest/api/1.0/dashboard/pull-requests
In the Authorization tab select type as Bearer Token.

In the Header tab add the header “content-type: application/json and send the request.

Request:

     curl 
    -X GET  
    -H "Authorization: Bearer <Access Token>" 
    -H "Content-type: application/json" 
    http://{bitbucket_base_url}/rest/api/1.0/dashboard/pull-requests/

This will Retrieve a page of pull requests where the current authenticated user status 200.
If the token is invalid or missing, the call will return a 401 Unauthorized response

Additional Resources

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