What is the primary use of AWS Lambda?

AWS Lambda is a serverless computing service that primarily enables you to run code in response to events without the need to provision or manage servers. This means that you can execute code automatically in reaction to various triggers, such as changes in data within an Amazon S3 bucket, updates to a DynamoDB table, or HTTP requests via Amazon API Gateway.

This event-driven model allows developers to focus on rather than server management and scaling. Lambda automatically scales according to the number of events, making it a highly efficient and flexible option for processing data, managing workloads, or creating back-end services without the overhead of traditional server management.

The service fits well within microservices architectures, where small functions are triggered by events, promoting a more agile development approach. Thus, the primary use case of AWS Lambda aligns perfectly with the ability to execute code in response to various events seamlessly.