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Azure AD Configuration for WorkflowGen Plus v2

Overview

Mobile applications must use an approach similar to that of regular web applications, which is called Authorization Code Flow with Proof Key for Code Exchange (PKCE). The main difference between this and the classic Authorization Code Flow is that the mobile application doesn't get a client secret, but instead exchanges a pair of codes to prove the origin of the authentication attempt. The issue is that a mobile application can't be trusted with a client secret because it's distributed directly to users and is therefore no longer under the developer's control, and the sources can be decompiled and analyzed to find secrets like this.
This section provides instructions on how to configure Azure AD for mobile apps so that your mobile users can benefit from delegated authentication to Azure AD as well.
The WorkflowGen Plus v2 mobile app (available in the Apple and Google Play app stores) supports Azure AD delegated authentication with the Microsoft Identity Platform v2.0 provider only. As well, it will not work with a WorkflowGen server that is configured to call third-party APIs with OpenID Connect (e.g. using a custom audience and/or multi-scopes).
The WorkflowGen Plus v1 mobile app is no longer supported.

Prerequisites

  • Make sure to have a licensed copy of WorkflowGen installed and running on an IIS web server in HTTPS secure connection mode.
  • Make sure to have administrative access to Azure AD to be able to configure it properly.
  • Make sure to have provisioned an existing Azure AD user with which you can authenticate to WorkflowGen so that you can use the application afterwards.
  • Make sure to have successfully configured delegated authentication to Azure AD with the Microsoft Identity Platform v2.0 provider on your WorkflowGen instance following the instructions in the Azure AD Authentication section with the WorkflowGen GraphQL API application registered as well.

Azure Active Directory configuration

This configuration is done in three steps. First, you have to register a new native application in Azure AD. Then, you have to give the application the necessary permissions to access the WorkflowGen GraphQL API. Finally, you have to register the correct callback URLs that will redirect within the native application.

Step 1: Register a new native application

  1. 1.
    In the Azure portal, click App registrations in the Azure Active Directory section.
  2. 2.
    Click New registration, and fill in the properties:
    • Name: WorkflowGen Plus
    • Supported account types: Accounts in this organizational directory only (Single tenant)
      ✏️ Note: Depending on the context, you should choose the right option for your use case for the supported account type value.
    • Redirect URI:
      • Type: Public client/native
      • Value: workflowgenplus://auth.authorize/azure-v1
  3. 3.
    Click Register at the bottom of the page.
You've now successfully registered your WorkflowGen Plus native application in Azure Active Directory.

Step 2: Grant access to WorkflowGen GraphQL API

  1. 1.
    Click API permissions.
  2. 2.
    In the Configured permissions section, click Add a permission.
  3. 3.
    Click My APIs, then select the WorkflowGen GraphQL API application in the list.
  4. 4.
    Click Delegated permissions and check default under the Permission column.
  5. 5.
    Click Add permissions.
  6. 6.
    On the API permissions page, click Grant admin consent for <your tenant name>, then click Yes.

Review the registration

Take note of the information you'll need later on:
  • A server address: This is your WorkflowGen application URL (e.g. https://<workflowgen url>).
  • A client ID: This is the application (client) ID in the Overview section of your application registration.
  • A tenant ID: This is the directory (tenant) ID in the Overview section of your application registration.
  • An audience: This is the Application ID URI property (e.g. https://<workflowgen url>/graphql) in the Expose an API section of the WorkflowGen GraphQL API application registration.
You'll need to give the server address, client ID, tenant ID , and audience information to the users who will be using the WorkflowGen Plus v2 mobile application. Azure AD delegated authentication won't work unless they copy this information into the mobile app.
You can also provide a universal link to your users. For instructions on how to generate a universal link to simplify the Azure AD login process for your users, see the Generating a Universal Link for WorkflowGen Plus section.
You've now successfully registered the WorkflowGen Plus mobile application to your Azure AD.
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