Enabling Notifications

You can enable notifications at the creation of new API versions in order to notify existing subscribers (via email) that a new version of the API is available. If you want to send a different type of notification, you can extend the org.wso2.carbon.apimgt.impl.notification.Notifier abstract class on your own accordingly.

Follow the instructions below to enable notifications for new API versions:

Set the email server configurations in the <API-M_HOME>/repository/conf/output-event-adapters.xml file under the <adapterConfig type="email"> section.
Log in to the Management Console and click Main > Resource > Browse.
Browse to the /_system/config/apimgt/applicationdata/tenant-conf.json file and click Edit as Text.

Set the NotificationsEnabled property to true as shown below:

"NotificationsEnabled":"true",
  "Notifications":[{
    "Type":"new_api_version",
    "Notifiers" :[{
      "Class":"org.wso2.carbon.apimgt.impl.notification.NewAPIVersionEmailNotifier",
      "ClaimsRetrieverImplClass":"org.wso2.carbon.apimgt.impl.token.DefaultClaimsRetriever",
      "Title": "Version $2 of $1 Released",
      "Template": " <html> <body> <h3 style=\"color:Black;\">We’re happy to announce the arrival of the next major version $2 of $1 API which is now available in Our API Store.</h3><a href=\"https://localhost:9443/store\">Click here to Visit WSO2 API Store</a></body></html>" 

    }]
  }
  ]

A notification type can have multiple notifier classes that help send multiple notifications. Each notifier has a class attribute containing the full class path. The following properties should be set for the default NewAPIVersionEmailNotifier class:

Property	Description
Class	The full class path of the notifier class.
ClaimsRetrieverImplClass	Subscriber email addresses are extracted from user claims. The default pack uses the `org.wso2.carbon.apimgt.impl.token.DefaultClaimsRetriever` class to read the claim values from the user store. Claims A claim is a piece of information about a particular subject. It can be anything that the subject is owned by or associated with, such as name, group, preferences, etc.
Title	The subject of the email.
Template	The template of the email body. This can be string values or a valid registry path to a template file.

The following strings are replaced with API specific values in the Title and Template properties.

$1 - API name

$2 - New API version

$3 - API provider email

$4 - API version of the original API