Implementing event-based microservices

Event-based microservices perform 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 a new booking (POST /v1/booking). This will be our event source, and it will make use of Apache Kafka to send this event. Other microservices can consume this event by listening to it. Upon a 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, such as booking...