Summary

In this chapter, we introduce the readers to the RabbitMQ messaging system—they start with a setup followed by a basic publisher and subscriber and then graduate to the next level of integrating the broker service to a Storm topology. Then we further delve into end-to-end application building exercises by the introduction of PubNub sensor data as a real-time continuous stream of IOT events for consumption and processing by Storm topology. After walking the readers through examples and codes for each component in the topology, we leave them with a stimulated mind to delve further and try more sources at PubNub with advanced business logic under the processing topology.