Async to sync in nodejs

Question

I am using this library getmac to get the MAC address of the server on which the nodejs is running. Basically the API to get the MAC address is async but I want to use it as sync call. Is this possible without using any libraries like sync, deasync etc?

//async API require('getmac').getMac(function(err,macAddress){ if (err) throw err console.log(macAddress) })

Possible duplicate of How to wrap async function calls into a sync function in Node.js or Javascript? — F. Kauder
– F. Kauder, Commented Aug 8, 2016 at 14:19
you can use callback to convert the async to sync or Use async module — Lav Vishwakarma
– Lav Vishwakarma, Commented Aug 8, 2016 at 14:26

Nikita Namestnikov · Accepted Answer · 2016-08-08 14:31:06Z

1

You can use this package

var done = false;
require('getmac').getMac(function(err,macAddress) { 
    if (err) throw err 
    console.log(macAddress)
    done = true;
});
require('deasync').loopWhile(function(){return !done;});

answered Aug 8, 2016 at 14:31

Nikita Namestnikov

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1 Comment

Ram Over a year ago

Basically I wanted to avoid using a new library because that would need re-issuing the whole environment but anyway I can live with this one. Thanks.

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