What is a node environment?

What is a node environment?

NODE_ENV is an environment variable made popular by the express web server framework. When a node application is run, it can check the value of the environment variable and do different things based on the value.

How do I declare an environment variable in node JS?

How to use custom environment variables in Node

1. Create an .env file.
2. Install the dotenv library: npm install dotenv .
3. Require dotenv as early as possible (e.g. in app.
4. Wherever you need to use environment variables (e.g. in GitLab, in Jenkins, in Heroku, …) you need to add your environment variables.

How do I find the process environment?

3 Answers. Solved: start by typing node and pressing enter, then type process. env and press enter.

How to define environment variables in Node.js?

.env is a special file which is used to define environment variables in Node.js. It holds key=value pairs to define the variables. Make sure to ignore .env in the .gitignore before commiting any changes.

What does env file mean in Node.js?

In case you are still wondering what all this means, well, you are probably new to the .env file. It’s actually a simple configuration text file that is used to define some variables you want to pass into your application’s environment. This file needs a something like a parser to make it work.

What is a configuration file in Node.js?

It’s actually a simple configuration text file that is used to define some variables you want to pass into your application’s environment. This file needs a something like a parser to make it work. The parser reads the variable definitions one-by-one and parses them to the environment.

How to set environment variables in ENV file?

Development has been much easier since the invention of the .env file. You can easily set your environment variables and values with the syntax ENV_VARIABLE=VALUE and boom! These variables got loaded as your environment variables, making it possible to get quick access to them: