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Piping Patterns: Multiplexing and Demultiplexing

Explore how to use Node.js streams for multiplexing and demultiplexing to transmit multiple logical data streams over a shared channel. Learn practical techniques to combine and separate streams like stdout and stderr in a remote logging example, enhancing your ability to manage complex asynchronous data flows with packet switching principles.

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There’s a particular variation of the merge stream pattern in which we don’t really want to just join multiple streams together but, instead, use a shared channel to deliver the data of a set of streams. This is a conceptually different operation because the source streams remain logically separated inside the shared channel, which allows us to split the stream again once the data reaches the other end of the shared channel. The illustration given below clarifies this situation.

Multiplexing and demultiplexing streams
Multiplexing and demultiplexing streams


The operation of ...