"yenv" is a JavaScript library that is one of the npm packages used in the Node.js environment. Its purpose is to load configuration from environment variables for use in Node.js applications.
With yenv you can configure different variables in different environments and easily load those variables as needed. These environments can be development, test, production, and so on. It also supports default values and type conversions to ensure the correct configuration parameters are used.
This library also provides some other functionality, such as loading configuration from a file and validating configuration to ensure that the application's configuration conforms to the expected format and type.
Overall, yenv allows you to more easily manage the configuration of your Node.js applications, thereby improving development efficiency and application reliability.
yenvis a Node.js npm tool library for handling environment variables. It allows you to more easily manage the configuration of different environments (such as development, testing, production, etc.). yenvworks by loading the configuration information corresponding to the current environment, based on .ymlthe file .
yenvThe main advantages of are:
- Define and manage environment variables more concisely.
- Supports type checking and default values, which help reduce issues due to misconfigurations.
- Support variable nesting, conveniently define and access multi-level configurations.
- Has a flexible configuration overriding and inheritance mechanism, allowing easy sharing and overriding of configurations in different environments.
To install and use yenv, you need to do the following in your project:
- Install
yenvas a dependency of the project:
npm install yenv
-
Create a file
env.ymlnamed that contains your environment variables. -
Use in code
yenvto load environment variables:
const yenv = require('yenv');
const env = yenv();
console.log(env.MY_VARIABLE);
More information and examples yenvabout can be found in the official documentation: https://www.npmjs.com/package/yenv