score:1
you need to integrate variable with start script.
"scripts": {
"start": "react_app_api_url=http://localhost:3001 react-scripts start", //like this
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
}
then you need to run your app. it will take all paramerters.
or another way to run it pass it using command line. ex: you need to pass env variable first before loading scripts
react_app_api_url=http://localhost:3001 npm start
you can also use package for better env management(cross-env) it will take care all env related management. feel free to check there doc.
if you want to use cross-env you have to only do this for running enviornment from .env file(note:.env file should be on package.json level)
"scripts": {
"start": "cross-env react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
it will load all your configuration from .env file whenever you want to use.
Source: stackoverflow.com
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