如何在Node.js中设置dotenv文件? [英] How do I setup the dotenv file in Node.js?
问题描述
我正在尝试使用dotenv NPM软件包，但它对我不起作用.我有一个包含以下内容的文件config/config.js:
I am trying to use the dotenv NPM package and it is not working for me. I have a file config/config.js with the following content:
'use strict';
var dotenv = require('dotenv');
dotenv.load();
console.log('config');
我的应用程序文件夹的根目录中还有另一个文件.env.我也有一个环境变量TWILIO_ACCOUNT_SID.
I have another file .env at the root of my application folder. I also have an environment variable TWILIO_ACCOUNT_SID.
这是我尝试在特定功能中使用环境变量时要经历的过程:
This is the process I go through while trying to use the environment variables in a certain function:
$ node
> require('./config/config.js');
config
{}
> process.env.TWILIO_ACCOUNT_SID
undefined
我在.env文件中定义了TWILIO_ACCOUNT_SID，但是当我尝试在控制台中输出该值时，我得到的错误是undefined.
I defined the TWILIO_ACCOUNT_SID in my .env file but as soon as I try to output the value in my console, I get the error that it is undefined.
如果您对如何解决此问题有任何建议，将不胜感激.
If you have any suggestions on how to troubleshoot this problem that will be very much appreciated.
推荐答案
对于我来说，每次我尝试使用process.env.MY_KEY从.env文件中获取密钥时，它都会返回undefined.
In my case, every time I tried to get a key from the .env file using process.env.MY_KEY, it returned undefined.
这个问题困扰了两个小时，只是因为我将文件命名为keys.env之类的文件，但该文件不被视为.env文件.
I suffered from this problem for two hours just because I named the file something like keys.env which is not considered to be a .env file.
这是故障排除列表:
-
文件名应为
.env(我相信.env.test也可以).
使用此语句require('dotenv').config();
.env文件应位于项目的根目录中.
The .env file should be in the root directory of your project.
遵循DB_HOST=localhost之类的文件编写规则"，无需将值用双引号或单引号引起来.
Follow the "file writing rules" like DB_HOST=localhost, no need to wrap values in double/single quotes.
此外，请在NPM网站上查看软件包的文档.
Also, check the documentation of the package on the NPM site.
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