REST API Authentication On Atlassian using AWS Cognito as OAuth Provider

Using this app, you can authenticate the Application 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 a number of 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
The REST API Authentication plugin allows you to use any third party OAuth 2.0 provider/ OpenID connect to authenticate REST APIs. Here we will go through a guide to configure Azure AD as Provider.

Download And Installation

  • Log into your atlassian instance as 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 API Token/OAuth Authentication 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 AWS Cognito server:

  • Sign in to AWS Amaazon. Now enter Cognito in search texbox and select Cognito from dropbox
  • AWS-Cognito as OpenID
  • In the left-hand navigation pane, click the App registrations service, and click New registration.
  • AWS-Cognito as OpenID
  • Go to Manage your user pools and click on Create a user pool
  • Add pool name and select Review Defaults.
  • Click on Add app client & then click on Add an app client.
  • Enter App client name & then Click on . Create app client.
  • AWS-Cognito as OpenID
  • Go to App client” and click on “Show details to get a client ID and client secret.
  • Go to domain name and enter a domain name for your app. After adding domain name you can check its availability by clicking on Check availability button. After entering valid domain name click Save changes button.
  • AWS-Cognito as OpenID

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.
Field Value
Grant type Authorization Code or Client Credentials
Callback URL Enter your application's base URL if you dont have a callback URL
Auth URL https://{DomainName}/oauth2/authorize
Access token URL https://{DomainName}/oauth2/token
Client ID Enter the AWS Cognito Client ID
Client secret Enter the AWS Cognito Client secret
Scope Identify
Client Authentication Send as Basic Auth Header
  • Copy the Access Token or click on Use Token.
A sample access token from AWS Cognito Provider looks like this.
e8ec210628306b1df26ff61e6b9b3195814a2d79d38a2c7c1dc5836f6ddd7143

Step 3: Fetch Username through AWS Cognito:

  • Choose the method type as "GET".
  • Enter the interoception Endpoint from the plugin to fetch the username in the Request URL. For AWS Cognito it is "".
  • 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.
AWS-Cognito as OpenID
Request:
     curl
                         -X GET
                         -H "Authorization: Bearer <Access Token>"
                         -H "Content-type: application/json" 
     https://discordapp.com/api/users/@me
                    
Copy the attribute value against the username, you will need to configure it in plugin. In this example, the value is "username".

Step 4: Configure the Rest API plugin:

Step 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 AWS Cognito as OAuth Provider.
  • Enter the Domain Name from AWS Cognito.
  • 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.

Rest API OAuth, API token, API Key authentication for Jira and Confluence AWS Cognito

Step 2: Disable Basic Authentication:
  • Disabling this will restrict all the REST API call made using Basic Authentication.

Step 5: User Restriction:

Step 1: Group Based Restriction:
  • Navigate to User Restriction Tab and then Group Based Restriction.
  • Check the Restrict Access to API.
  • Enter the Group to allow user to access Rest API.
  • Save the settings.
Step 2: IP Restriction:
  • Navigate to User Restriction Tab and then IP Restriction.
  • Check the Restrict Access to API by IP address.
  • Add IP Address or range to allow Rest API.
  • Save the settings.

Step 6: Test REST API using access token:

  • Call any REST API. Include the access token in the Authorization header. Here’s an example of fetching content from Jira.
  • Go to the Postman application select method type as GET and enter the Request URL. For eg. http://{Jira_Base_URL}/rest/api/2/project
  • In the Authorization tab select type as Bearer Token.
Rest API OAuth, API token, API Key authentication for Jira and Confluence Confluence-Rest-API-AzureAD B2C  
  • In the Header tab add the header “content-type: application/json and send the request.
Rest API OAuth, API token, API Key authentication for Jira and Confluence Confluence-Rest-API-AzureAD B2C
Request:
     curl 
     -X GET  
     -H "Authorization: Bearer <Access Token>" 
     -H "Content-type: application/json" 
     http://{jira_base_url}/rest/api/2/project
  • This will return all projects which are visible for the current userstatus 200.
  • If the token is invalid or missing, the call will return a 401 Unauthorized response
  • Call any REST API of your Atlassian application. 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.
AWS-Cognito as OpenID-AccessToken  
  • In the Header tab add the header “content-type: application/json and send the request.
AWS-Cognito as OpenID
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.
  • Call any REST API. 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.
Rest API OAuth, API token, API Key authentication for Jira and Confluence Confluence-Rest-API-AzureAD B2C  
  • In the Header tab add the header “content-type: application/json and send the request.
Rest API OAuth, API token, API Key authentication for Jira and Confluence Confluence-Rest-API-AzureAD B2C
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


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