Tutorial: Updatings Consumers to Use Order Schema

Follow along with the Tutorial Video.  It is part of your Hands-on Exercise.

We updated InventoryCheckerChina to use the new Order schema.

However, the cursor on topic orderBackLogChina with subscription inventory_checker would still consume some string messages from the topic.  We can abandon those messages since our consumer is no longer capable of consuming String messages.

One way to abandon these messages is to complete both of the following items:

• change the subscription name to inventory_checker_Orderclass
• change the susbscriptionInitialPosition to SubscriptionInitialPosition.Latest

This will cause the cursor of the new subscription to start after the most recent message on the topic, abandoning the old string messages for this consumer.  We are now able to consume messages from orderBackLogChina.

However, InventoryCheckerChina is unable to publish messages to order_approved and order_declined because they still have a registered Schema of string.

Click the Next arrow below to view your Hands-on Exercise.