In what situations is it recommended to use AWS Lambda or similar serverless functions?

AWS Lambda and similar serverless functions are recommended in the following situations:

• Event processing: When you need to respond to events, such as uploading a file to S3, database changes, HTTP requests.
• Scalability: During variable workloads, when it is important to automatically scale computations without managing servers.
• Small and short-term tasks: For executing small functions that start quickly and finish promptly.
• Microservices: To implement individual components of an application with clearly defined functionality.
• Resource savings: Paying only for the actual execution time of the function, which is advantageous during irregular loads.

Example: a function that processes image uploads and creates thumbnails can be implemented as AWS Lambda, triggered when a file is uploaded to S3.