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How to Test AWS Lambda Locally — One of those things that will seem appealing at first but which ultimately results in a different experience to real life.

Node 14.x Runtime Now Available in AWS Lambda — The popular AWS Lambda serverless platform has supported Node since day one and now they’ve introduced Node 14 support which introduces all the delights of V8 8.0 and 8.1 plus diagnostic reporting, and improved streams APIs. If you're a Vercel user instead, they've just announced Node 14 support too.

Building Server-Side Rendering for React Apps on AWS Lambda — A look at two ways you can implement and deploy a solution for server-side rendering in React applications by using Lambda or Lambda@Edge, along with using tools like AWS CDK to automate things.

Creating a REST API for Amazon DocumentDB with Amazon API Gateway and AWS Lambda — If you’re more on the AWS side of things and using the MongoDB-compatible-ish DocumentDB, this may be of interest if you want to use it to build a serverless REST API.

How to Debug Go-Powered AWS Lambda Functions with Gebug — Go is a fantastic language for serverless use cases but local debugging can be a pain point. Here are some pointers that involve Gebug, a tool for debugging Dockerized Go apps.

Optimizing Lambda Functions Packaged as Container Images — It was only just over a month ago that Lambda gained container image deployment support. While you could deploy a 10GB image, say, you don’t really want to, and this post touches on how to reduce image size and what images are actually made up of anyway.

Cross-Account Replication with Amazon DynamoDB — Demonstration of a cost-effective way to migrate and sync DynamoDB tables across AWS accounts while having no impact on the source table performance and availability.

AWS's Serverless Q4 2020 Roundup — Every three months, AWS rounds up the various announcements and updates made to their serverless leaning products and shares them in a single blog post like this. We’ve covered most of these things already, but it’s a handy reminder/roundup.

AWS Lambda and DynamoDB Tips Learnt in 2020 — A bundle of various things the author has picked up including thoughts on using Lambda synchronously vs asynchronously, how to structure apps, triggers, cold starts, and the limitations of DynamoDB.

Optimizing Batch Processing with Custom Checkpoints in AWS Lambda — With the new custom checkpoint feature, there’s greater control over how you choose to process batches containing failed messages.

Ingesting MongoDB Atlas Data using Amazon EventBridge — EventBridge is an AWS service that provides an event bus for tying together various SaaS apps and other AWS services.

.NET 5 AWS Lambda Support with Container Images — Last week, we mentioned AWS Lambda’s new support for container images (as opposed to the ‘upload a ZIP file’ approach) and this provides a great way to work with .NET 5 on the platform.

Creating Faster AWS Lambda Functions with AVX2 — AVX2 is a set of SIMD x86 instructions aimed at speeding up vector-oriented algorithms (think image manipulation or deep learning) and you can now run AVX2-optimized workloads on Lambda, your supercomputer in the cloud(!)

Batch Processing using AWS Lambda — Rather than running a scheduling engine of your own on, say, EC2, you can bring together a CloudWatch powered cron trigger, a serverless function to kick start jobs, and you’re off to the races.

AWS Lambda Code Signing: For Trust and Integrity Control — The goal is for administrators to ensure that only signed code packages from trusted publishers run in their Lambda functions and that the code has not been altered since signing.

⚙️ Amazon API Gateway Adds AWS Step Functions Service Integration — Step Functions now integrates with Amazon API Gateway to enable backend orchestration with minimal code and built-in error handling.

From Prototype to Production in One Weekend with Serverless — This sort of article is preaching to the choir in this newsletter, but we do love a story of how serverless enables rapid development when it’s necessary.

AWS Unveils CloudWatch Lambda Insights — A new monitoring and troubleshooting solution for serverless apps running on AWS Lambda aggregating and summarizing metrics including CPU time, memory, disk, and network use.