AWS Re:invent Day 4 Highlights

Michael Warkentin
3 min readDec 3, 2021

Other Re:invent 2021 content:

Here are my most interesting announcements from the third day of AWS Re:invent.

Amplify Studio (blog post)

Amplify continues to expand its footprint for building and deploying apps from front-end and mobile to back-end and cloud integration. It now offers a UI builder which can integrate directly with Figma and generate React UI Component code. If you’re starting to build an app from scratch, Amplify is definitely worth a look.

Re:post community Q+A

It looks like AWS is finally replacing the old AWS Developer Forums with something a little more modern — AWS re:Post. It looks pretty similar to Stack Overflow, but is apparently a public version of an internal Amazon tool.

It currently has 27 high level topics that you can follow — including things like Serverless, Security Identity & Compliance, and Cloud Financial Management.

You can get points and rank up by answering questions, but it should be noted that your account is tied to an AWS account which means that if you login with your work account, you may lose access to your reputation if you switch employers somewhere down the line.

CDK Updates

CDKv2 (blog post)

The AWS Cloud Development Kit (CDK) has just hit a new major release: 2.0! The major new features are:

  • Consolidation of the AWS Construct Library into a single package called aws-cdk-lib which means only a single dependency to work with AWS
  • Improved API reference with more examples
  • CDK Watch for faster iteration on application code like Lambda functions and ECS tasks
  • A new assertions library to run automated unit tests in any CDK-supported language

Construct Hub for CDK (blog post)

Construct Hub is a centralized registry for CDK Constructs (think Terraform Modules) which makes it easy to discover and share reusable CDK building blocks.

New SDKs in preview

It’s always nice to have more languages with full support for interacting with AWS. Yesterday AWS launched preview SDKs for three new languages:

One cool fact that most people might not be aware of — AWS SDKs are generated programatically using the smithy interface definition language!

GuardDuty for EKS

Looks like this was pre-announced during a smaller session — excited to see GuardDuty expanding into more specialized areas!

Wrap up

That’s most likely a wrap for all of the big announcements from Re:invent! It’s been fun keeping up with all of the announcements and launches. I was a bit surprised there wasn’t much news on Lambda, ECS / Fargate, or AppRunner. I’ll be back with one final post covering my Top 5 launches.

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