Lesson 1: Create an Event Provider using App Builder

In this lesson, we will :

Create an event provider using an App Builder template
Register the App as event provider
Fire Events
Schedule cron jobs with alarms

Create an event provider using App Builder template

To provide an end-to-end solution, for this Code Lab, we need an event provider to send events to the Journaling API, at a rate that is configurable to help with testing. We will use the OpenWhisk Alarms Package in an App Builder application to create cron jobs.

First, we will create a new App Builder App from a template, following this Code Lab. Be sure to add I/O management API in the console and choose publish-event in the CLI template.

Register the app as event provider

To use the CLI to register the app as an event provider, we need to install the Adobe I/O Event CLI plugin, like this:

npm install -g @adobe/aio-cli-plugin-events

Then follow the steps in this Code Lab.

Fire events and set up to consume them

Now we can arrange to fire events by following the procedure from this Code Lab, making sure to choose Journaling API as the way to consume them.

Scheduling cron jobs with alarms

Follow this CodeLab to fire events automatically by using the runtime alarms package.

Your app.config.yaml should now look like this:

application:
  actions: actions
  web: web-src
  runtimeManifest:
    packages:
      my-app:
        license: Apache-2.0
        actions:
          generic:
            function: actions/generic/index.js
            web: 'yes'
            runtime: 'nodejs:14'
            inputs:
              LOG_LEVEL: debug
            annotations:
              require-adobe-auth: true
              final: true
          publish-events:
            function: actions/publish-events/index.js
            web: 'yes'
            runtime: 'nodejs:14'
            inputs:
              LOG_LEVEL: debug
              apiKey: $SERVICE_API_KEY
              providerId: $PROVIDER_ID
              eventCode: $EVENT_CODE
              client_id: $CLIENT_ID
              client_secret: $CLIENT_SECRET
              technical_account_email: $TECH_ACCOUNT_EMAIL
              technical_account_id: $TECH_ACCOUNT_ID
              ims_org_id: $IMS_ORG_ID
              private_key: $PRIVATE_KEY
            annotations:
              final: true
        Triggers:
          everyMin:
            feed: /whisk.system/alarms/interval
            inputs:
              minutes: 1
          rules:
            everyMinRule:
              trigger: everyMin
              action: publish-events

To test the action, execute aio app deploy in the VSCode terminal. Once the deployment is finished, run aio rt action invoke your-app-name/generic, and then verify its result and logs using aio rt activation get ID and aio rt activation logs ID.

If successful, the event provider should automatically send the events, you should be able to use Postman or cURL to verify that the Journaling API is receiving them.