AWS Cognito OAuth & OpenID connect Single Sign-On (SSO) | AWS Cognito SSO Login

Step 1: Setup Amazon Cognito as OAuth Provider

• First of all, go to Amazon Console and sign up/login in your account to Configure AWS Cognito.

• Search for Cognito in the AWS Services search bar as shown below.

• Click on Mange User Pools button to see the list of your user pools.

• Click on Create a user pool to create a new user pool.

• Add a Pool Name and click on the Review Defaults button to continue.

• Scroll down and click on the Add App Client option in front of App Clients.

• Click on Add an App Client. Enter an App Client Name and click on Create app client to create an App client.

• Click on Return to Pool Details to come back to your configuration.

• Click on Create Pool button to save your settings and create a user pool.

• In the navigation bar present on the left side, click on the App Client Settings option under the App Integration menu.

• Enable Identity provider as Cognito user pool and enter your Callback/Redirect URL which you will get from your miniOrange plugin present on your Client side under the CallBack URLs text-field. Select Authorization code grant checkbox under the Allowed OAuth Flows and also select openid and profile checkboxes under the Allowed OAuth Scopes option (Please refer to the image below). Click on the Save Changes button to save your configurations.

• Click on Choose Domain Name option to set a domain name for your app.

• Enter your Domain Name under the Domain Prefix text-field and click on the Save Changes button to save your domain name.

• Click on App Clients option under the General Settings menu in the left side navigation bar. Then, click on the Show Details button to see your App details like Client ID, Client secret etc.

• Copy the Client App ID and Client App Secret text field values and save them under your miniOrange plugin present on the client side under the Client Id and the Client Secret text fields respectively.

• Click on Users and groups option under the General Settings menu in the left side navigation bar. Then, click on the Create user button to add a new user.

• Fill all the required details and click on Create user.

• You can see the new user created.



AWS Cognito Endpoints and Scope:




Client ID :	Click Here
Client Secret :	Click Here
Scope:	openid
Authorize Endpoint:	https://<cognito-app-domain>/oauth2/authorize
Access Token Endpoint:	https://<cognito-app-domain>/oauth2/token
Get User Info Endpoint:	https://<cognito-app-domain>/oauth2/userInfo
Custom redirect URL after logout:[optional]	https://<cognito-app-domain>/logout?client_id=<Client-ID>&logout_uri=<Sign out URL configured in Cognito Portal>

You have successfully configured AWS Cognito as OAuth Provider for achieving AWS Cognito login into your WordPress Site.

Step 2: Setup WordPress as OAuth Client

• After Plugin is activated, go to the plugin and search for AWS Cognito. Select AWS Cognito from the OAuth Providers list.

• To configure AWS Single Sign-On (SSO), go to Configure OAuth tab and configure App Name, Client ID, Client Secret from provided Endpoints.
• openid is already filled but if it doesn't work then configure scope as User.Read and for fetching group info use scope is Directory.read.all.
• Click on Save Settings to save the configuration.

You have successfully configured WordPress as OAuth Client for achieving AWS Cognito login into your WordPress Site.

Step 3: User Attribute Mapping.

• User Attribute Mapping is mandatory for enabling users to successfully Single Sign-On into WordPress using AWS SSO. We will be setting up user profile attributes for WordPress using the below settings.

Finding user attributes

• Go to Configure OAuth tab. Scroll down and click on Test Configuration.

• You will see all the values returned by your OAuth Provider to WordPress in a table. If you don't see value for First Name, Last Name, Email or Username, make the required settings in your OAuth Provider to return this information.

• Once you see all the values in Test Configuration, go to Attribute / Role Mapping tab, select attributes from Username dropdown and click on Save.

Step 4: Role Mapping [Premium].

• Click on “Test Configuration” and you will get the list of Attribute Names and Attribute Values that are sent by your OAuth provider.
• From the Test Configuration window, map the Attribute Names in the Attribute Mapping section of the plugin. Refer to the screenshot for more details.

• Enable Role Mapping: To enable Role Mapping, you need to map Group Name Attribute. Select the attribute name from the list of attributes which returns the roles from your provider application.
  Eg: Role


• Assign WordPress role to the Provider role: Based on your provider application, you can allocate the WordPress role to your provider roles. It can be a student, teacher, administrator or any other depending on your application. Add the provider roles under Group Attribute Value and assign the required WordPress role in front of it under WordPress Role.
  
  For example, in the below image. Teacher has been assigned the role of Administrator & Student is assigned the role of Subscriber.

• Once you save the mapping, the provider role will be assigned the WordPress administrator role after SSO.
  Example: As per the given example, Users with role ‘teacher’ will be added as Administrator in WordPress and ‘student’ will be added as Subscriber.

Step 5: Login Settings / Sign In Settings.

• The settings in Single Sign-On (SSO) Settings tab define the user experience for Single Sign-On (SSO). To add a AWS SSO login widget on your WordPress page, you need to follow the below steps.

1. sign in settings for wordpress 5.7 and before :

• Go to WordPress Left Panel > Appearances > Widgets.
• Select miniOrange OAuth. Drag and drop to your favourite location and save.


2. sign in settings for wordpress 5.8 :

• Go to WordPress Left Panel > Appearances > Widgets.
• Select miniOrange OAuth. Drag and drop to your favourite location and save.

• Open your WordPress page and you can see the AWS SSO login button there. You can test the AWS Single Sign-On (SSO) now.

In this Guide, you have successfully configured AWS Cognito Single Sign-On (SSO) by configuring AWS Cognito as OAuth Provider and WordPress as OAuth Client using our WP OAuth Single Sign-On ( OAuth / OpenID Connect Client ) plugin.This solution ensures that you are ready to roll out secure access to your WordPress site using AWS Cognito login credentials within minutes.

Additional Resources

• What is OAuth 2.0?
• Understanding Amazon Cognito user pool OAuth 2.0 grants
• Frequently Asked Questions (FAQs)