Install:

npm install dotenv --save

 

For example, we can store the sensitive information or env related information in a 'veriables.env' file:

// variables.envNODE_ENV=developmentDATABASE=mongodb://xxxxxMAIL_USER=xxMAIL_PASS=xxMAIL_HOST=xxx.ioMAIL_PORT=2525PORT=7777MAP_KEY=xxxxSECRET=xxxKEY=xxx

 

Then we can use dotenv to load those configurations:

// import environmental variables from our variables.env filerequire('dotenv').config({ path: 'variables.env' });

 

Now all the env related information will be stored in:

process.env