Update Lambda to Console

Tutorial video

npm init
npm -i --save (libraries)
open in code, create handler function in index.js
zip -r deploy.zip ./
you will get deploy.zip file in current directory
Go to AWS lambda function console then choose upload deploy.zip

Use CLI:
aws lambda update-function-code –function-name lambda-something –zip-file fileb://deploy.zip (specify runtime? Also, may not need fileb which is a zsh plugin)