aws-dynamodb | Easily provision AWS DynamoDB tables using Serverless | Serverless library

I'm writing an AWS Lambda that will listen for DynamoDB Streams events and use those events to update an Elasticsearch index. My code is written using the Quarkus framework, and I've found guides and examples that show how to do this, so my code looks like this:

I want to save an initial admin user to my dynamodb table when initializing a cdk stack through a custom resource and am unsure of the best way to securely pass through values for that user. My code uses dotEnv and passes the values as environment variables right now:

I have a table sorted by user id, each object contains a list of objects that have their own id plus two attributes. Is it possible to use update_item to update either one of those attributes, using user_id, and obj_id. The only way I have found to do is to use GET and then PUT, which feels like it could be more expensive.

This is and example entry in my table:

I created a REST api using aws api-gateway and dynamodb without using aws-lambda (I wrote mapping templates for both the integration request and integration response instead of lambda) on a GET API method, POST http method and Scan action setting. I'm fetching from a global secondary index in dynamodb to make my scan smaller than the original table.

It's working well except I am only able to scan roughly 1,000 of my 7,500 items that I need to scan. I checked out paginating the json in an s3 bucket, but I really want to keep it simple with just the aws api-gateway and the dynamodb, if possible.

Is there a way to get all 7,500 of the items in my payload with some modification to my integration request and/or response mappings? If not, what do you suggest?

Below is the mapping code I'm using that works for a 1000 item json payload instead of the 7,500 that I would like to have:

Integration Request:

Code to be tested:

I have a cdk project in which I am creating an DynamoDB table and adding tag to it like below,

Requirment: I need a glue job to get the aws-dynamodb(nested structure-combination of maps and list) data into s3.

My approach: First, i used glue-dynamic frame to get all the data from dynamodb into one dynamic frame.

I am using AWS CDK TypeScript. I am trying to create an cognito userpool in cdk. But it is showing below warning at "this",

So what I'm trying to do is to dockerize a Flask REST API that uses Serverless and DynamoDB. I followed this tutorial but it doesn't mention about dockerizing the whole thing. I've also tried to do some research and came up with very minimal resources, like this for example.

Is this even possible? If so, some links to guides/advice would be helpful. Thanks.