Need to amend an AWS function to include upload image image functionality

I have an existing AWS Lambda function that i need to add functionality to include images . Here are the requirements for this project: - documentation on the api configuration that is needed for the lambda function to accept the image together with the POST data passed to the API. - resize the image to 3 standard size image (one for thumbnail, one for Standard Defiinition and one for High Definition) - updated lambda function to save the images to an S3 bucket and store the url to the record of the product