Read Environment Variables in AWS Lambda | Node.js

How to read environment variables in AWS lambda function in Node.js ?

To read the environment variables defined in the lambda function’s configuration, you can use

process.env.VARIABLE_NAME

All Environment variables defined in the lambda function configuration will be available in the process.env.

Reading Configuration from .env file

Now instead of defining in the lambda function configuration, if you are defining it in a separate enviroment file like .env you need to load it to the environment.

For this you need to install a npm module.

npm install dotenv --save

And then in your lambda function, use it to load the configurations from .env file to process.env.

require('dotenv').config()
console.log(process.env) // ## configuration from .env should be available here