Suppose I have defined an environment variable in my unix shell with a key, for example:
export DEV_KEY=abcd123abcd123abcd123
How could I access that variable within the code of a NodeJS program? The goal is that the key is not part of the node program code.
Through process.env . This property returns an object with all the environment variables of the user or local session:
let key = process.env.DEV_KEY;
To complement the answer, also say that you can use the array notation process.env['FOO']