Running Untrusted Code Safely at Scale with AWS Lambda
Piotr Migdał••6 min read
A case study on how Quesma built a secure, isolated execution environment on AWS Lambda to safely run untrusted, AI-generated code in production.
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34 articles about Lambda
AWS Cost Optimization - Key Principles for Beginners
Tobias Schmidt••19 min read
Learn the key principles for cost optimization on AWS, including cost allocation, cost tracking, and cost optimization strategies.
Render - Modern Cloud without the Ops and Complexity
Tobias Schmidt••7 min read
With Render, starting and building a new project in the cloud never have been easier.
AWS FinOps - Real-Time Cost Monitoring with CloudTrail and EventBridge
Debojyoti Mahapatra••9 min read
Build a real-time AWS FinOps monitoring system using CloudTrail, EventBridge, Lambda, and SNS. Get instant cost alerts when EC2 instances launch and prevent budget overruns with proactive cloud cost management.
How to Get Started with AWS in 2025
Tobias Schmidt••19 min read
Learn how to get started with AWS in 2025 with the best practices and tools.
Alchemy - Reimagining Infrastructure-as-Code for Modern Development
Eduardo Rabelo••6 min read
Alchemy is a next-generation Infrastructure-as-Code (IaC) framework developed by Sam Goodwin. It rethinks infrastructure management from the ground up using the modern TypeScript ecosystem to manage complex cloud resources and deployment.
Building & Testing Lambda@Edge Functions with LocalStack
Tobias Schmidt••10 min read
Building and testing Lambda@Edge functions with CloudFront is complicated, as deployments can take up to 10 minutes. With LocalStack, you can build, test, and debug your Lambda@Edge functions locally!
5 Tips to Save Lambda Costs
Sandro Volpicella••10 min read
Learn practical strategies to optimize AWS Lambda costs through memory allocation, timeouts, ARM architecture, and efficient batching and caching techniques.
How We've Built Our Serverless CloudWatch Book Video Platform with SST, Next.js, ConvertKit, LemonSqueezy and Vimeo
Tobias Schmidt••11 min read
Learn how we built a Serverless video platform for the CloudWatch Book with SST, Next.js, ConvertKit, LemonSqueezy, and Vimeo
Building a Serverless Chat App with Contextual Note Integration Featuring Amazon Bedrock, the OpenAI API, and SST
Tobias Schmidt••17 min read
Learn to build a serverless chat app using Amazon Bedrock, OpenAI API, and SST, with a step-by-step guide on deployment and API integration
Building a Real-World Use Case with Step Functions and the Callback Pattern
Sandro Volpicella••8 min read
Learn to build applications using AWS Step Functions and Callback Pattern with code examples and a GitHub repo for practical learning
Upload Files to S3 Using API Gateway: A Step-by-Step Guide
Enrico Portolan••4 min read
Learn to upload.webps to S3 via API Gateway without Lambda. Streamline AWS file storage with our guide on direct integration for efficient uploads
Mastering AWS Lambda with Terraform: A Comprehensive Guide
Sebastian Ball••21 min read
Deploy AWS Lambda with Terraform for Serverless computing, streamline infrastructure management, and boost productivity using Infrastructure as Code
Serverless Framework Unlimited: Resource Extensions
Ayhan Kaplan••9 min read
Use Serverless Framework Unlimited's AWS resource extensions for better serverless app customization, security, and infrastructure management.
Best Practices to Avoid and Troubleshoot Timeouts in AWS Lambda
Tobias Schmidt••8 min read
Discover AWS Lambda timeout reasons and best practices for avoiding, minimizing, preventing, and troubleshooting them.
Supported Languages at AWS Lambda
Tobias Schmidt••7 min read
Explore AWS Lambda language support and learn about the pros and cons of different programming languages, including cold and warm start performances.
Making the Most of AWS Lambda - Navigating Its Limitations for Better Results
Tobias Schmidt••11 min read
Learn how to make the most of AWS Lambda while navigating its limitations for better results with this guide.
AWS Lambda Environment Variables - Best Practices and Common Use Cases
Tobias Schmidt••8 min read
Discover how to utilize environment variables in AWS Lambda to achieve secure, resource-friendly configurations via best practices.
Mastering the AWS Lambda CLI - A Guide for Deployment, Management, and More
Tobias Schmidt••11 min read
Learn how to effectively manage your AWS Lambda functions with the AWS CLI. Streamline deployment, configuration, and logging with this comprehensive guide.
A Comprehensive Guide to AWS Compute Services
Tobias Schmidt••10 min read
Learn about the compute services by AWS and their benefits and limitations, covering EC2, Fargate, Lambda, App Runner, Beanstalk LightSail, and many more.
CDK Diff is underrated
Sandro Volpicella••2 min read
Learn about the compute services by AWS and their benefits and limitations, covering EC2, Fargate, Lambda, App Runner, Beanstalk LightSail, and many more.
AWS Lambda Pricing: A Complete Guide to Understanding the Cost of the Serverless Service
Sandro Volpicella••8 min read
Learn about the pay-per-use pricing model of AWS Lambda and how it charges based on usage, runtime, and the number of requests.
The Limitless CloudFormation Stack with Lambda-Backed Resources
Tobias Schmidt••6 min read
Discover how to use AWS Lambda-Backed CloudFormation resources to create limitless stacks and get immediate notifications of serverless applications.
How To Build a Self-Updating Twitter Banner With Dynamic Content
Tobias Schmidt••11 min read
Display your latest blog articles or your most recent followers with Lambda and EventBridge
AWS DynamoDB Streams
Sandro Volpicella••6 min read
AWS DynamoDB Streams are amazing to listen to database changes in your DynamoDB table. We'll create a stream with Lambda and DynamoDB.
Learn How to Automate Welcome Emails with Amazon SES, Lambda and DynamoDB Streams
Sandro Volpicella••4 min read
This article shows you how to send transaction emails and welcome emails with AWS SES, Lambda, and DynamoDB streams.
Adventures with Lambda layers and CDK
Andy Blackledge••7 min read
Did you ever use lambda layers in CDK? Watch out there are common pitfalls with that! This article shows them to you.
Hexagonal Architecture with CDK, Lambda, and TypeScript
Andy Blackledge••9 min read
Hexagonal Architecture with CDK, Lambda, and TypeScript
Building a State Machine With Lambda Destinations and CDK
Andy Blackledge••8 min read
In this post we will look at how we can use Lambda destinations and CDK to create a simple state machine. AWS announced Lambda destinations in November 2019
Adding Lambda Custom Metrics the Easy Way
Andy Blackledge••7 min read
Let's have a look at how to add custom metrics with the npm package aws-embedded-metrics.
What are AWS Lambda Layers and when should I use them?
Sandro Volpicella••7 min read
What are AWS Lambda Layers and when should I use them?
How To Build A Minimalistic Zero Cost Lambda-Powered Social Media Dashboard
Tobias Schmidt••9 min read
Build your own minimalistic Social Media Dashboard on AWS that runs at $0 per month.
Lambda Provisioned Concurrency - Improving AWS Lambda Cold Start Times
Sandro Volpicella••8 min read
This article gives an overview of AWS Lambda cold starts, when they occur, and how to overcome them by using Lambda provisioned concurrency.
Introduction to AWS Lambda: A Starter Guide
Tobias Schmidt••16 min read
Get started with AWS Lambda: a serverless computing platform to run code without provisioning or managing servers.