In this blog, I take you along on my journey to build my first Golang-based Lambda function. Inspired by surprise on my RDS bill, I built a Lambda function in Go to periodically stop running databases with a specific tag. Come, learn and debug with me!
Lambda destinations enable you to respond to successful or failed asynchronous invocations in a way that wasn’t possible before the feature was added. I explain what this feature allows you to do and show you how to use it.
You have probably seen architectures that use DynamoDB streams to perform change data capture on tables and Lambda functions to process those changes before. Today, we’ll do a deep dive into the underlying technology and explore how we can configure and tweak this configuration to our advantage.
Last week in the AWS slack developer channel once again, somebody was asking: “How can I run a Lambda locally?”. Well, that is a valid question, but there is a chance that you only think you need a local Lambda emulator because you do Lambda Spaghetti! Spaghetti code is a phrase for unstructured and difficult-to-maintain source code. I show you an easier way to test Lambdas locally and have some arguments that a local Lambda runtime should only be the very last resort. On top, you get examples in Pasta-Python, Gemelli-Go and Tortellini-Typescript.
In this post I’ll show you how to trigger your Lambda functions in intervals smaller than a minute using StepFunctions and the CDK.
Lambda Event filters are a great addition to our serverless toolbox and allow us to both simplify our code as well as save money. That’s great, but they can also delete messages from your SQS-queues if you’re note careful. In this post I’m going to show you what to watch out for.
Detect the crack in the window (or the lambda library) before it breaks: As we have seen during the last month, also well known libraries like log4j can have previously unknown vulnerabilities. Therefore scanning your Lambda application before deploying is not enough! What happens if a new cybersecurity vulnerability occurs while your functions are running? Solution: Amazon Inspector. Only problem: it`s not available for Lambda yet. Fortunately, you can deploy Lambda with container images and Inspector will continuously scan these images for you. Want to know how set up Lambda & Inspector and see how evil Node vulnerabilities are detected? Read on!
In this post I’m going to explore how the new event filters in AWS Lambda can be used to implement the data model for a video streaming website in DynamoDB. I’ll explain why this feature makes your code simpler and allows you to save money in the process.
