Adding an Application Key Generation Workflow

This section explains as to how you can attach a simple approval workflow to the application registration operation in the ESB.

Application creation and Application registration are different workflows. After an application is created, you can subscribe to available APIs, but you get the consumer key/secret and access tokens only after registering the application. There are two types of registrations with regard to an application: production and sandbox. The following are the situations in which you need to change the default application registration workflow:

  • To only issue sandbox keys when creating production keys is deferred until testing is complete.
  • To restrict untrusted applications from creating production keys. You allow only the creation of sandbox keys.
  • To make API subscribers go through an approval process before creating any type of access token.

Engage the Approval Workflow Executor in ESB

First, enable the application registration workflow.

  1. Start MWARE ESB and sign in to the APIM management console (https://<Server Host>:9443/carbon).

  2. Click Main → Resources → Browse.

  3. Go to the /_system/governance/apimgt/applicationdata/workflow-extensions.xml resource, disable the Simple Workflow Executor and enable Approval Workflow Executor for application registration key generation. You can enable Approve workflow executor for Product keys or Sandbox keys or both by disabling the simple workflow executor and enable approval workflow executor for the ones you need. Please note that this workflow is not applicable for API keys generation.

    <WorkFlowExtensions>
...
    <!--ProductionApplicationRegistration executor="org.wso2.carbon.apimgt.impl.workflow.ApplicationRegistrationSimpleWorkflowExecutor"/-->
    <ProductionApplicationRegistration executor="org.wso2.carbon.apimgt.impl.workflow.ApplicationRegistrationApprovalWorkflowExecutor"/>
...   
    <!--SandboxApplicationRegistration executor="org.wso2.carbon.apimgt.impl.workflow.ApplicationRegistrationSimpleWorkflowExecutor"/-->
    <SandboxApplicationRegistration executor="org.wso2.carbon.apimgt.impl.workflow.ApplicationRegistrationApprovalWorkflowExecutor"/>
...
</WorkFlowExtensions>
    The application key generation Approve Workflow Executor is now engaged.

  4. Sign in to the API Developer Portal (https://localhost:9443/devportal) as a Developer Portal user and open the application with which you subscribed to the API. Click Applications and click on an ACTIVE application.

    Note

    If you do not have an API already created and an Application subscribed to it, follow Create a REST API, Publish an API, and Subscribe to an API to create an API and subscribe to it.

  5. Select Production Keys or Sandbox Keys from the side navigation bar and click on GENERATE KEYS.

    Generate keys for an application

    Note that the following message will appear if the application key generation workflow is correctly enabled.

    Generate keys for an application message

  6. Sign in to the Admin Portal (https://<Server Host>:9443/admin) with admin credentials and list all the tasks for application registrations from Tasks → Application Registration and click on approve or reject to approve or reject the application key generation pending request.

    Pending keys for an application

  7. Navigate back to the API Developer Portal and view your application.

    It shows the application access token, consumer key and consumer secret.

    Key generation successfull

    If the workflow request is rejected it will show a message.

    Key generation rejection

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