React is not fetching env variables

Question

Trying to utilize env variables within react, and im getting an

undefined

I'm not using webpack, just dotenv. Not sure why its not working.

I referenced this

React env variables with .env

and the it doesn't have the solution im looking for.

package.json

{
  "name": "client",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@material-ui/core": "^3.9.1",
    "@material-ui/icons": "^3.0.2",
    "axios": "^0.18.0",
    "history": "^4.7.2",
    "http-proxy-middleware": "^0.19.1",
    "material-ui-icons": "^1.0.0-beta.36",
    "moment": "^2.24.0",
    "react": "^16.7.0",
    "react-dom": "^16.7.0",
    "react-redux": "^6.0.0",
    "react-router-dom": "^4.3.1",
    "react-scripts": "2.1.3",
    "redux": "^4.0.1",
    "redux-thunk": "^2.3.0"
  },
  "scripts": {
    "start": "PORT=8001 react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ],
  "devDependencies": {
    "dotenv": "^6.2.0"
  }
}

Home.js

import React, {Component} from 'react';
// import axios from 'axios';
import Grid from '@material-ui/core/Grid';
import Paper from '@material-ui/core/Paper';
import {withStyles} from '@material-ui/core/styles';
import Chip from '@material-ui/core/Chip';
import {signWithGithub} from '../actions/';
import {connect} from 'react-redux';
import {compose} from 'redux';
import Avatar from '@material-ui/core/Avatar';
import Axios from '../Axios'
import {Redirect, withRouter} from 'react-router-dom';
const styles = theme => ({
    root: {
        flexGrow: 1,
        padding: 20
    },
    paper: {
        padding: theme.spacing.unit * 2,
        textAlign: 'center',
        color: theme.palette.text.secondary
    },

    chip: {
        margin: theme.spacing.unit
    }
});

class Home extends Component {

    constructor(props) {
        super(props);

        this.state = {
            user: ""
        }

    }

    componentWillMount = () => {
        console.log(process.env.BASE_GITHUB_SIGNIN);
    }

.env

BASE_URL=http://localhost:8000
BASE_SIGN_IN=http://localhost:8000/api/users/loginUser
BASE_GITHUB_SIGNIN=http://127.0.0.1:8000/api/users/auth/github

Answer 1

If you have created your app using create-react-app , the env has a standard format like here.

Just prepend REACT_APP to every variable, that will do fine

REACT_APP_YOUR_VARIABLE_NAME