Top Links from Issue #297

How to accidentally create read-only DynamoDB items
In a recent Developing on AWS training, I taught my students the basics of DynamoDB. I usually do that by building up the concepts on a digital whiteboard. I think this helps students connect the many pieces of information to form a mental model of the service.

#02 - The Countdown to Re:Invent by Serverless Advocate
In last week’s newsletter, we discussed AWS announcing the latest Heroes, Ran Isenberg answered our ‘expert of the week’ questions, and we had some great content from the community.

Message from CEO Andy Jassy: Strengthening our culture and teams by Andy Jassy
To address the second issue of being better set up to invent, collaborate, and be connected enough to each other and our culture to deliver the absolute best for customers and the business, we’ve decided that we’re going to return to being in the office the way we were before the onset of COVID.

Introduction to true serverless databases
Serverless computing allows developers to build and run applications without managing or worrying about the underlying infrastructure. Resources are automatically available based on demand, so you only pay for what you use.

Never Miss a Beat: Better CloudWatch Alarms on Metrics with Missing Data by Elias Brange
“Everything fails all the time,” said Werner Vogels. Today’s distributed systems comprise a lot of moving parts. Each component in your system can suddenly break for a myriad of reasons. When something inevitably happens, you should be the first to know. Not your customers.