Problem
Is it possible in Node.js code to read environment variables?
Consider the os.environ[‘HOME’] function in Python.
Asked by Jayesh
Solution #1
process.env.ENV_VARIABLE
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) {
mailer.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.
db.connect({
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
Post is based on https://stackoverflow.com/questions/4870328/read-environment-variables-in-node-js