Dotenv is somehow already integrated in your CRAJust create a .env in root
Inside your .env file don't forget towrite"REACT_APP_" before your Variable name
i.e: replace ANYTHING_YOU_WANT=ABcdEfghI45545785 by REACT_APP_ANYTHING_YOU_WANT=ABcdEfghI45545785In whatever file you want you can refere toyour.env with
`${process.env.REACT_APP_ANYTHING_YOU_WANT}`