Tutorial: Azure Active Directory single sign-on (SSO) integration with Postman

In this tutorial, you'll learn how to integrate Postman with Azure Active Directory (Azure AD). When you integrate Postman with Azure AD, you can:

  • Control in Azure AD who has access to Postman.
  • Enable your users to be automatically signed-in to Postman with their Azure AD accounts.
  • Manage your accounts in one central location - the Azure portal.

Prerequisites

To get started, you need the following items:

  • An Azure AD subscription. If you don't have a subscription, you can get a free account.
  • Postman single sign-on (SSO) enabled subscription.

Scenario description

In this tutorial, you configure and test Azure AD SSO in a test environment.

  • Postman supports SP and IDP initiated SSO.
  • Postman supports Just In Time user provisioning.

Note

Identifier of this application is a fixed string value so only one instance can be configured in one tenant.

To configure the integration of Postman into Azure AD, you need to add Postman from the gallery to your list of managed SaaS apps.

  1. Sign in to the Azure portal using either a work or school account, or a personal Microsoft account.
  2. On the left navigation pane, select the Azure Active Directory service.
  3. Navigate to Enterprise Applications and then select All Applications.
  4. To add new application, select New application.
  5. In the Add from the gallery section, type Postman in the search box.
  6. Select Postman from results panel and then add the app. Wait a few seconds while the app is added to your tenant.

Configure and test Azure AD SSO for Postman

Configure and test Azure AD SSO with Postman using a test user called B.Simon. For SSO to work, you need to establish a link relationship between an Azure AD user and the related user in Postman.

To configure and test Azure AD SSO with Postman, perform the following steps:

  1. Configure Azure AD SSO - to enable your users to use this feature.
    1. Create an Azure AD test user - to test Azure AD single sign-on with B.Simon.
    2. Assign the Azure AD test user - to enable B.Simon to use Azure AD single sign-on.
  2. Configure Postman SSO - to configure the single sign-on settings on application side.
    1. Create Postman test user - to have a counterpart of B.Simon in Postman that is linked to the Azure AD representation of user.
  3. Test SSO - to verify whether the configuration works.

Configure Azure AD SSO

Follow these steps to enable Azure AD SSO in the Azure portal.

  1. In the Azure portal, on the Postman application integration page, find the Manage section and select single sign-on.

  2. On the Select a single sign-on method page, select SAML.

  3. On the Set up single sign-on with SAML page, click the pencil icon for Basic SAML Configuration to edit the settings.

    Edit Basic SAML Configuration

  4. On the Basic SAML Configuration section, if you wish to configure the application in IDP initiated mode, perform the following step:

    In the Reply URL text box, type a URL using the following pattern: https://identity.getpostman.com/sso/<INSTANCE_NAME>/callback

  5. Click Set additional URLs and perform the following step if you wish to configure the application in SP initiated mode:

    In the Sign-on URL text box, type a URL using the following pattern: https://identity.getpostman.com/sso/<INSTANCE_NAME>/init

    Note

    These values are not real. Update these values with the actual Reply URL and Sign-on URL. Contact Postman Client support team to get these values. You can also refer to the patterns shown in the Basic SAML Configuration section in the Azure portal.

  6. Your Postman application expects the SAML assertions in a specific format, which requires you to add custom attribute mappings to your SAML token attributes configuration. The following screenshot shows an example for this. The default value of Unique User Identifier is user.userprincipalname but Postman expects this to be mapped with the user's email address. For that you can use user.mail attribute from the list or use the appropriate attribute value based on your organization configuration.

    image

  7. On the Set up single sign-on with SAML page, in the SAML Signing Certificate section, find Federation Metadata XML and select Download to download the certificate and save it on your computer.

    The Certificate download link

  8. On the Set up Postman section, copy the appropriate URL(s) based on your requirement.

    Copy configuration URLs

Create an Azure AD test user

In this section, you'll create a test user in the Azure portal called B.Simon.

  1. From the left pane in the Azure portal, select Azure Active Directory, select Users, and then select All users.
  2. Select New user at the top of the screen.
  3. In the User properties, follow these steps:
    1. In the Name field, enter B.Simon.
    2. In the User name field, enter the username@companydomain.extension. For example, B.Simon@contoso.com.
    3. Select the Show password check box, and then write down the value that's displayed in the Password box.
    4. Click Create.

Assign the Azure AD test user

In this section, you'll enable B.Simon to use Azure single sign-on by granting access to Postman.

  1. In the Azure portal, select Enterprise Applications, and then select All applications.
  2. In the applications list, select Postman.
  3. In the app's overview page, find the Manage section and select Users and groups.
  4. Select Add user, then select Users and groups in the Add Assignment dialog.
  5. In the Users and groups dialog, select B.Simon from the Users list, then click the Select button at the bottom of the screen.
  6. If you are expecting a role to be assigned to the users, you can select it from the Select a role dropdown. If no role has been set up for this app, you see "Default Access" role selected.
  7. In the Add Assignment dialog, click the Assign button.

Configure Postman SSO

To configure single sign-on on the Postman side, you need to upload the downloaded Federation Metadata XML and update the appropriate copied URLs from the Azure portal at Postman. To learn how to configure Postman SSO, see the step-by-step guide.

Create Postman test user

In this section, a user called Britta Simon is created in Postman. Postman supports just-in-time user provisioning, which can be enabled by selecting the checkbox to Automatically add new users. With this, if a user doesn't already exist in Postman, a new one is created after authentication.

Test SSO

In this section, you test your Azure AD single sign-on configuration with following options.

SP initiated:

  • Click on Test this application in Azure portal. This will redirect to Postman Sign on URL where you can initiate the login flow.

  • Go to Postman Sign-on URL directly and initiate the login flow from there.

IDP initiated:

  • Click on Test this application in Azure portal and you should be automatically signed in to the Postman for which you set up the SSO.

You can also use Microsoft My Apps to test the application in any mode. When you click the Postman tile in the My Apps, if configured in SP mode you would be redirected to the application sign on page for initiating the login flow and if configured in IDP mode, you should be automatically signed in to the Postman for which you set up the SSO. For more information about the My Apps, see Introduction to the My Apps.

Next steps

Once you configure Postman you can enforce session control, which protects exfiltration and infiltration of your organization’s sensitive data in real time. Session control extends from Conditional Access. Learn how to enforce session control with Microsoft Cloud App Security.