!!! Overview
[{$pagename}] ([pub-sub]) is a [Software design pattern] [messaging pattern] where a [Publisher] makes a [message] available to zero or more [Subscribers] using a specific [Protocol].[{$pagename}] may publish the message to multiple output channels, one for each [subscriber].[{$pagename}] is often used as a form of [Asynchronous Operation] service-to-service [communication] used in [serverless] and [microservices] [architectures]

[{$pagename}] may be messaging can be used to enable [Event-Driven Architectures], or to decouple [applications] in order to increase performance, reliability and scalability.

Unlike the [Request-Response] [messaging pattern] the [Publisher] has no knowledge of the [Subscribers] (or if there are any [Subscribers])

!! More Information
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