Service Bus and Queues

Question

Been getting into some different technologies but keep getting hung up on Service Bus, specifically Azure Service Bus and what the different components do. Queues, subscriptions, topics, etc…

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Thanks!

In: 2

Answer 1

These are components of a service oriented architecture (SOA). This is a system where a number of independent services work together to create a complete application. For example authentication may be one service, authorization another, notifications, searching, etc. Some of these may be microservices while others are more macroservices and provide multiple features. Connecting all these services together is the enterprise service bus. The services will publish messages to the bus which will then send and transform them as needed. Typically each published message would have a topic and all subscribers to that topic gets a copy of the message. Because the subscribers may not check for new messages until it is ready the message gets put into a queue so it can be retrieved in a timely manner.