AWS Lambda Trigger Events and Common Use Cases

In this article, we are going to learn AWS Lambda Trigger Events and Common Use Cases.

By the end of the article, we will learn different use cases that trigger AWS Lambda function with following the best practices.

I have just published a new course — AWS Lambda & Serverless — Developer Guide with Hands-on Labs.

AWS Lambda Trigger Events and Common Use Cases

Most Lambda-based applications use a combination of AWS services, for different requirements about Storage, API Management and integrating with other system and services. In these applications, Lambda is connecting between services, providing business logic to transform data that moves between services.

So we said that Serverless applications mostly using with combination of several AWS services, that integrated with custom code run in Lambda functions. AWS Lambda integrates with all these other AWS services to invoke functions or take other actions.

As you can see the image on above, these are some common use cases:

  • Invoke a function in response to resource lifecycle events, such as with Amazon S3.
  • Respond to incoming HTTP requests. For more information, see Tutorial: Using Lambda with API Gateway.
  • Consume events from a queue. For more information, see Using Lambda with Amazon SQS.
  • Run a function on a schedule. For more information, see Using AWS Lambda with Amazon EventBridge CloudWatch Events.

It depends on which service you’re using with Lambda, the invocation works with different event json objects. So that means S3 trigger events and API Gateway events and Queue SQS events is different with each other and our lambda functions should be develop according to incoming event object from other services.

Step by Step Design AWS Architectures w/ Course

I have just published a new course — AWS Lambda & Serverless — Developer Guide with Hands-on Labs.

In this course, we will learn almost all the AWS Serverless Services with all aspects. We are going to build serverless applications with using AWS Lambda, Amazon API Gateway, Amazon DynamoDB, Amazon Cognito, Amazon S3, Amazon SNS, Amazon SQS, Amazon EventBridge, AWS Step Functions, DynamoDB and Kinesis Streams. This course will be 100% hands-on, and you will be developing a real-world application with hands-on labs together and step by step.

Source Code

Get the Source Code from Serverless Microservices GitHub — Clone or fork this repository, if you like don’t forget the star. If you find or ask anything you can directly open issue on repository.

References:

Common Lambda application types and use cases — AWS Lambda (amazon.com)

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AWS Serverless with AWS Lambda, API Gateway, Amazon DynamoDB, Cognito, S3, SNS, SQS, EventBridge, Step Functions, DynamoDB and Kinesis Streams, CloudFormation, SAM, CDK. We will develop Lambda-based event-driven application integrate to all AWS Serverless Services.

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Mehmet Ozkaya

Software/Solutions Architect, Udemy Instructor, Working on Cloud-Native and Serverless Event-driven Microservices Architectures https://github.com/mehmetozkaya