Serverless applications on AWS with Lambda using Java 25, API Gateway and DynamoDB - Part 4 SnapStart + DynamoDB request priming

Introduction In part 1, we introduced our sample application. In part 2, we measured the performance (cold and warm start times) of the Lambda function without any optimizations. What we observed was quite a large cold start time. We introduced AWS Lambda SnapStart in part 3 as one of the approaches to reduce the cold start times of the Lambda function. We saw that by enabling the SnapStart on the Lambda function, the cold start time goes down. It's especially noticeable when looking at the "last 70" measurements with the snapshot tiered cache effect. In this part of our article series, we'll introduce how to apply Lambda SnapStart priming techniques, starting with DynamoDB request priming. The goal is to further improve the performance of our Lambda functions. Sample application with the enabled AWS Lambda SnapStart using DynamoDB request priming We'll reuse the sample application from part 1 and do exactly the same performance measurement as we described in part 2. Also, please make