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Shared Modules

A shared module is a mechanism by which you can communicate with other extensions.

As an example, let’s say our extension loads a user ID asynchronously and then shares the user ID with any other extension via a promise:

var userIdPromise = new Promise(/* load user id, then resolve promise */);
module.exports = userIdPromise;

In extension.json we will give this shared module a name. Assuming we name it user-id-promise, a different extension could then access this shared module as follows:

var userIdPromise = turbine.getSharedModule('user-extension', 'user-id-promise');

Shared modules can be anything you would typically be able to export from a CommonJS module (e.g., functions, objects, strings, numbers, booleans).