Lambda Triggers and Integrations
Connect Lambda functions to various AWS services like S3, DynamoDB, and API Gateway to create powerful, event-driven workflows.
Events Bring Lambda to Life
Welcome to the heart of serverless architecture: Lambda Triggers! These are the events that tell your Lambda function when to run. Instead of constantly running a server, your function springs into action only when needed.
Think of it like a doorbell for your code. Someone presses the button (an event occurs), and your function responds.
How Triggers Work: Push vs. Pull
Lambda triggers come in two main flavors:
- Push-based: The event source (like S3 or SNS) directly invokes your Lambda function when an event happens. Lambda receives the event and runs your code.
- Pull-based: Lambda itself polls an event source (like SQS queues or DynamoDB Streams) for new items. When new data is found, Lambda retrieves it and invokes your function.
Understanding this helps you design efficient event-driven workflows.
All lessons in this course
- What is AWS Lambda?
- Building Your First Lambda Function
- Lambda Triggers and Integrations
- Monitoring and Debugging Lambda Functions