Implementing reactive microservices

Reactive microservice performs operations in response to events. We'll make changes in our code to produce and consume events for our sample implementation. Although we'll create a single event, a microservice can have multiple producers or consumer events. Also, a microservice can have both producer and consumer events. We'll make use of the existing functionality in the Booking microservice that creates the new booking (POST /v1/booking). This will be our event source and would make use of Apache Kafka for sending this event. Other microservices can consume this event by listening to the event. On successful booking call, the Booking microservice will produce the Kafka topic (event) amp.bookingOrdered. We'll create a new microservice Billing (in the same way in which we created the other microservices like Booking) for...