为什么反应看不到.env

Question

I have .env which has REACT_APP_API_URL = http://localhost:5000/ . I use it in this code snippet

import axios from "axios";

const host = axios.create({
    baseURL: process.env.REACT_APP_API_URL
});

const authHost = axios.create({
    baseURL: process.env.REACT_APP_API_URL
});

When I try to output console.log(process.env.REACT_APP_API_URL); then the value is displayed undefined, why is that? The .env file is located in the directory where all client files are present

Answer 1

first install dotenv: npm i dotenv
after that import this to file: const dotenv = require("dotenv")
and config dot env: dotenv.config()

Answer 2

Please check your .gitignore file, sometimes the create-react-app adds .env file to the.gitignore entry. Maybe that's the reason.

Answer 3

Did you try the dotenv package ?

npm install dotenv

In your config file add:

require("dotenv").config();