© Michael L. Perry 2020
M. L. PerryThe Art of Immutable Architecturehttps://doi.org/10.1007/978-1-4842-5955-9_11

11. Communication

Michael L. Perry1 
(1)
Allen, TX, USA
 

Many of the architectural choices that we make constrain the way in which messages are delivered and the way in which they are processed. Two common examples of message delivery are REST APIs and service busses. Which one you choose often dictates how messages are processed. In a REST API, a message is sent as a synchronous HTTP request. The server processes the request and sends back the response. In a service bus, a message is sent asynchronously by pushing it to a queue or publishing it to a topic. The recipient processes the message as it pulls it from the queue and publishes the ...

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