Environment Variables in React application

Question

I want to add a .env file in my React application. The project wasn't created using Create React APP. And without Webpack. I'm struggling to find a proper solution for this

Giovanni Esposito · Accepted Answer · 2021-08-06 11:57:36Z

For a easy solution you could try to use react-app-env.

You could folllow this simple guide. In brief:

install it:

yarn add --dev react-app-env (or npm install --save-dev react-app-env)

change the start and build scripts:

"scripts": { "start": "react-app-env start'", "build": "react-app-env build'", "test": "react-app-env test'", ... }

finally add at least two configuration files (on project root folder): development.env and production.env. By default development.env is used imported on npm start and npm test, and production.env on npm build.

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