Example invoking AWS Lamda function from NodeJS AWS sdk Instructions (assuming you are in repo root directory) Installing dependencies $ yarn # or with npm $ npm install You must create a file with .env name where we set our env vars (using dot env a dev dependency) replace with your own params $ echo ACCESS_KEY_ID=[YOU_AMAZON_ACCESS_KEY] >> .env $ echo SECRET_ACCESS_KEY=[YOU_AMAZON_SECRET_ACCESS_KEY] >> .env $ echo LAMDA_FUNCTION_NAME=[THE_AMAZON_AWS_LAMBDA_FUNCTION_NAME_THAT_YOU_WANT_CALL] >> .env Run the code $ yarn start # or with npm $ npm start