In this article we are going to write a Lambda function that gets triggered when any file is uploaded to a certain S3 bucket. We will use AWS SAM to automate the process and make it easy.

In this article we will learn how to use aws s3 from a nodejs application. We will see how we can upload a file and download it. Along with progress bar and deleting capabilities.

In this article we will see the difference between AWS API gateway proxy integration vs lambda integration. We will also see how to do it using AWS CDK

How to use aws cdk to create API for your application

DRY up your Lambda code using middleware