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In Ubuntu it's quite simple; I can run the application using:
$ NODE_ENV=production node myapp/app.js However, this doesn't work on Windows. Is there a configuration file where I can set the attribute?
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You can signal Node. js that you are running in production by setting the NODE_ENV=production environment variable. in the shell, but it's better to put it in your shell configuration file (e.g. . bash_profile with the Bash shell) because otherwise the setting does not persist in case of a system restart.
On the Windows taskbar, right-click the Windows icon and select System. In the Settings window, under Related Settings, click Advanced system settings. On the Advanced tab, click Environment Variables. Click New to create a new environment variable.
NODE_ENV is an environment variable that stands for node environment in express server. The NODE_ENV environment variable specifies the environment in which an application is running (usually, development or production).
By default, the environment variable is unset and defaults to development.
Current versions of Windows use Powershell as the default shell, so use:
$env:NODE_ENV="production" Per @jsalonen's answer below. If you're in CMD (which is no longer maintained), use
set NODE_ENV=production This should be executed in the command prompt where you intend to run your Node.js application.
The above line would set the environment variable NODE_ENV for the command prompt where you execute the command.
To set environment variables globally so they persist beyond just the single command prompt, you can find the tool from System in Control Panel (or by typing 'environment' into the search box in the start menu).
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I just found a nice Node.js package that can help a lot to define environment variables using a unique syntax, cross platform.
https://www.npmjs.com/package/cross-env
It allow you to write something like this:
cross-env NODE_ENV=production my-command Which is pretty convenient! No Windows or Unix specific commands any more!
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