Is NestJS using NODE_ENV? Is it recommended to set it?

Question

I am using NestJS and I am new to it.

I have read that NODE_ENV is an environment variable that specifies the environment, introduced by Express.

Since NestJS is based on Express, I don't know if NODE_ENV is also relevant for NestJS.

Is it still recommended to set NODE_ENV when using NestJS? Or is it not necessary for NestJS?

Answer 1

Setting environment variables is up to your needs, and for NODE_ENV if your application doesn't' support any kind of several environment like prod, dev.. than you're not necessary to add it.

Answer 2

In case you are going to use environment variables, make sure to read this:

https://docs.nestjs.com/techniques/configuration

It will save you a lot of trouble!