Where does PORT is stored in the next command ~PORT=8080 npm App.js

Question

Assuming we have the next code in the App.js,

console.log(`This is the port ${process.env.PORT}`);

Is there a way to access to the value of PORT outside the runtime process?

score 1 · Accepted Answer · answered Mar 10 '20 at 14:43

1

Not directly, but you could use dotenv and read the env variables from a file. Then externally, you can read that file and get the PORT variable.

answered Mar 10 '20 at 14:43

Horatiu Jeflea

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score 1 · Answer 2 · answered Mar 10 '20 at 14:44

Values stored in process.env are environment variables, provided by your shell. In a *nix environment you can access this outside of the application like

echo $PORT

In windows you can access the environment variable like so:

echo %PORT%

It is worth noting that process.env values are not variables, and if you change the values in the runtime, it will not persist outside of the application.

Where does PORT is stored in the next command ~PORT=8080 npm App.js

2 Answers2