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Asked: 2026-05-25T16:25:21+00:00

I write some example on erlang and mongodb. As driver for mongodb I use

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I write some example on erlang and mongodb. As driver for mongodb I use emongo. Problem is if I make connection in one module I can not reuse this connection in different modules. In C/C++ or other objective languages I can make singleton and use it. How can I reuse open connection in erlang?
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  1. Editorial Team

    You should be able to re-use the pool ID from any part of your application.

    In module A:

    emongo:insert(test, SomeCollection, Document).

    In module B:

    emongo:insert(test, AnotherCollection, AnotherDocument).

    As long as you keep using the same id (in this case, test) either by hard coding it into the different modules or by sending it in a message, you should be able to use the library from any part of the application.

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