AWS Lambda usage example

Based on this article https://www.baeldung.com/java-aws-lambda

Prerequisites

• Maven 3
• JDK 21

How to build

mvn clean install

How to run on AWS

Create Lambda functions:

• MethodHandlerLambda
• RequestHandlerLambda
• StreamHandlerLambda
• SavePersonHandlerLambda

Upload result fat JAR from ./target folder into each Lambda function

Set appropriate handler in Runtime settings section (on Code tab) of each Lambda function:

• by.andd3dfx.lambda.LambdaMethodHandler::handleRequest
• by.andd3dfx.lambda.LambdaRequestHandler::handleRequest
• by.andd3dfx.lambda.LambdaRequestStreamHandler::handleRequest
• by.andd3dfx.lambda.LambdaSavePersonHandler::handleRequest

Create DynamoDB Table Person with Partition key id

Created DynamoDB table should be in the same region that declared in LambdaSavePersonHandler.REGION

How to check

From Test tab - send test event with some text in quotes

Green section "Execution result: succeeded" should appear. Check logs in it