hide urls in .env in react app

WARNING: Do not store any secrets (such as private API keys) in your React app!</p> <p>Environment variables are embedded into the build, meaning anyone can view them by inspecting your app’s files.</p> <p>outside our src folder create .env file and add it to gitignore<br /> REACT_APP_WEATHER_API_KEY=123456<br /> inside where you want to access the variable<br /> const API_KEY = process.env.REACT_APP_WEATHER_API_KEY;</p> <p>make sure to restart the server