CODEWITHSUNDEEP
node.jseventemitter
Eatdoku
Eatdoku

Reputation: 6951

Nodejs in memory message bus using EventEmitter for cross modules communication

im new to nodejs, and I am looking for ways to have a pub/sub messaging in my node application that I can use for communication between module/packages.

Was looking into using EventEmitter maybe using the eventEmitter instance on the process so it can act as a global event bus. But I just have a bad feeling about doing that, I don't know node enough to come up with a solid reason to not doing that.

or is there an alternative approach?

this is only in memory not cross multiple instance

Upvotes: 1

Views: 1409

Answers (1)

Paul
Paul

Reputation: 36329

You can rely on the module cache if you like. Some modules do that to maintain state if needed (e.g. mongoose).

So what I mean by that is if your message bus module maintains its state internally, and exports the pub/sub functions only, then any other module that requires it will get the same 'instance' and therefore be able to pub/sub against the same channel.

Upvotes: 1

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