January 2018
Intermediate to advanced
336 pages
7h 56m
English
Content preview from Microservices with Clojure
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Messaging and events
The next step for the Helping Hands application is to define the interactions between the identified microservices. Microservices can either interact by directly sending the messages to other service endpoints synchronously or they can subscribe to the events generated by other microservices and receive the messages asynchronously. Asynchronous messages rely on the underlying message broker and its durability. Message brokers not only help to scale the application by holding the messages yet to be processed in the queue, but also support durable deliveries. Even if a service fails, it can be restored and allowed to start processing pending messages from the point where it left off. Combining both synchronous and asynchronous ...
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