🕒 Automating Periodic Tasks with EventBridge Scheduler, .NET, and CloudFormation

The article presents a method for scheduling .NET Lambda functions using Amazon EventBridge Scheduler for recurring tasks like data refreshes. It details a proof-of-concept project that deploys a Lambda function using a CloudFormation template. The project simulates fetching stock prices at regular intervals, demonstrating the scheduler's functionality. The CloudFormation template defines the Lambda and its IAM role, the EventBridge Scheduler, and a Dead Letter Queue (DLQ) for error handling. The Lambda function logs a simulated stock price and accepts JSON payloads. The deployment and verification steps are outlined, including how to check logs and confirm that the scheduler is triggering the Lambda. The article highlights the 15-minute execution time limit of Lambda functions. Solutions for jobs exceeding the time limit are suggested: Step Functions, Fargate, or Batch. The approach uses a serverless and managed solution for scheduled tasks. The key takeaways include EventBridge Scheduler, Lambda, DLQ, CloudFormation and the Lambda time limits.