Serverless Saturdays - 26th April

🎉 We are back!! 🎉

AWS UG Tirupathi & Serverless Bangalore Meetup present "Serverless Saturdays", a monthly free online meetup series by expert speakers on the latest and best in cloud and AWS!

Date : 26 April 2025 (Saturday)
Time : 11 AM - 1 PM

Agenda:

Session 1: “Getting out of a Sticky DynamoDB Situation with the help of AWS Glue” by Samuel Lock, Staff Engineer at Serverless Guru.

Abstract:

When working with DynamoDB we sometimes find ourselves wanting to operate beyond the supported access patterns of DynamoDB. These access patterns are a gift (allowing DynamoDB to be fast and cheap) but also a curse (not as forgiving as SQL queries). When you are forced to avoid these access patterns, typically when attempting to run complex operations across a whole table, the operation will take some time (and some memory) and this is when most turn to AWS Glue.

Glue comes from the Data Science domain and therefore many serverless engineers do not fully understand what it is and how to use it. In this talk I will present to you how you can use AWS Glue in its intended way in order to overcome your DynamoDB-related obstacles and not just treat it as a Lambda Function that can run for more than 15 minutes.

Session 2: "From Lambda Loops to Step Function Maps: Transitioning from Code Complexity to Workflow Simplicity", by Srushith Repakula, AWS Serverless Hero, Head of Engineering at KonfHub

Abstract:

In this session, I will share our transformative journey in automating high-volume payment processing using AWS Step Functions. Initially, our solution struggled with complex looping logic, scaling challenges, and the inherent limitations of Lambda functions. These obstacles led to convoluted code and persistent issues with timeouts and retries.

By transitioning to AWS Step Functions, we shifted the heavy lifting of looping to the workflow layer. This change not only eliminated timeout issues—by processing tasks one at a time—but also introduced robust, built-in retry mechanisms and a callback pattern that seamlessly integrated with webhook responses from our payment gateways. Join us as we delve into the technical strategies, best practices, and real-world lessons learned from orchestrating hundreds of money payouts with a reliable, scalable, and maintainable solution