AWS Lambda
AWS Lambda is a serverless compute service that runs code in response to events without requiring you to provision or manage servers. It automatically scales your applications by running code in response to triggers such as HTTP requests via Amazon API Gateway, file uploads to Amazon S3, or database updates in Amazon DynamoDB. You only pay for the compute time you consume, with no charges when your code is not running.
Developers should use AWS Lambda for building event-driven applications, microservices architectures, and automating backend tasks without managing infrastructure. It's ideal for scenarios like real-time file processing, data transformation, API backends, and scheduled tasks (e.g., cron jobs), as it reduces operational overhead and enables rapid scaling. Lambda is particularly valuable in cloud-native environments where cost efficiency and agility are priorities.