Question

So, after reading a little about non-blocking code, does…

response.write(thisWillTakeALongTime());

…block the process? If so, do we need to pass the response into pretty much every slow function call we make, and have that function handle the response?

Thanks for helping to clarify!

Answer 1

Yes, it will block the event loop. And passing the response object into the slow function won’t help, no matter where you call the slow function you will be blocking the event loop.

As to how to fix it, we will need more information.

What is making your slow function slow? Are you performing large calculations?
Are you doing sync versions of file/database calls?