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In Node.js, you may read environment variables.


Is it possible in Node.js code to read environment variables?

Consider the os.environ[‘HOME’] function in Python.

Asked by Jayesh

Solution #1


The name of the variable you want to access is ENV VARIABLE.

Process.env is documented in the Node.js documentation.

Answered by Jayesh

Solution #2

You may extract environment variables from a process using Node.js by key. environment object:

for example

var mode   = process.env.NODE_ENV;
var apiKey = process.env.apiKey; // '42348901293989849243'

Here’s the answer to the question about how to set environment variables in node. js

Answered by Subodh Ghulaxe

Solution #3

You can use process.env[v] to use a string key generated in your Node.js program, such as var v = ‘HOME’.

Otherwise, you’ll have to hardcode process.env.VARNAME into your program.

Answered by user2574650

Solution #4

To retrieve environment variables in Node.JS you can use process.env.VARIABLE_NAME, but don’t forget that assigning a property on process.env will implicitly convert the value to a string.

if (process.env.SHOULD_SEND) {
} else {
  console.log("this won't be reached with values like false and 0");

Rather, you should perform explicit checks. Depending on the situation, I’ve discovered that a good name can go a long way.

  debug: process.env.NODE_ENV === 'development'

Answered by Igor Litvinovich

Solution #5

You can use the env package to control your project’s environment variables:

Done. With process.env.ENV NAME, you may now access your environment variables.

Answered by Huy Vo

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