Asynchronous Lambda Invocation

When you invoke an AWS Lambda function asynchronously, you don't wait for the function's response. It's a "fire and forget" model.

• The caller sends the event and doesn't wait for the result.
• Lambda handles the queuing and execution in the background.
• This pattern is perfect for event-driven architectures where immediate feedback isn't required.

Here's the typical flow for an asynchronous Lambda invocation:

• An event source (like S3, SNS, or a direct invocation) sends an event.
• Lambda places this event into an internal queue.
• Lambda then invokes your function from this queue.
• The event source receives an immediate success response, even if the function hasn't started processing yet.