Weekly update 06

You can become a serverless blackbelt. Enrol to my 4-week online workshop Production-Ready Serverless and gain hands-on experience building something from scratch using serverless technologies. At the end of the workshop, you should have a broader view of the challenges you will face as your serverless architecture matures and expands. You should also have a firm grasp on when serverless is a good fit for your system as well as common pitfalls you need to avoid. Sign up now and get 15% discount with the code yanprs15!

Hi, welcome to another weekly update!

MEAP update for Production-Ready Serverless

We have released a number of new videos on my video course Production-Ready Serverless:

We will publish the next videos on cold starts soon. Remember, whilst the course is still in the MEAP, you can get 40% off the face price using the code ytcui.

I have also turned this course into a classroom setting, so if you’re interested in having me run this as a workshop in your company, then drop me a line via the Contact page.

WeAreDevelopers videos

All the videos from #WeAreDevelopers 2018 is available. Here’s the slides and video for my talk on building a realtime multiplayer mobile game with Akka.

FullStack Videos

All the videos from last week’s FullStack conference is now available online. My talk on serverless in production, an experience report is also available here.

PureSec webinar

Recording of my webinar with Ory Segal, CTO of PureSec, is now available on YouTube. We discussed a number of topics around serverless and security, as showed off a quick demo of how PureSec can help you protect your serverless application.

sphere.it videos

All the videos from sphere.it is now available online. My talk on how to apply principles of chaos engineering to serverless is also available for your viewing pleasure :-)

New Posts

My wish list for AWS Lambda in 2018. Hot on the heels of the SQS announcement, I came up with a list of features I would love to see from AWS Lambda. Amongst these include:

  • ability to pay for a pool of warm containers & ENIs
  • ability to pipe logs to a Kinesis stream without first going through CloudWatch Logs
  • predicative scaling
  • finalizer handler to clean up resources when a container garbage collected

AWS Announcements

IAM introduces permissions boundaries. This plugs a big gap in the current IAM permission model, where anyone with the permission to create new IAM roles can create more permissive roles than their own. Check out this thread by Ben Kehoe, which accurately summarises the problem as well as limitations with the new feature.

S3 announces increased request rate performance. This is huge, and removes the performance bottleneck with S3 that required us to use randomized keys in the past.

Good reads

Unit testing for Node.js Serverless projects with Jest.

Using SQS with AWS Lambda and Serverless.

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Hi, I’m Yan. I’m an AWS Serverless Hero and I help companies go faster for less by adopting serverless technologies successfully.

Are you struggling with serverless or need guidance on best practices? Do you want someone to review your architecture and help you avoid costly mistakes down the line? Whatever the case, I’m here to help.

Hire me.


Skill up your serverless game with this hands-on workshop.

My 4-week Production-Ready Serverless online workshop is back!

This course takes you through building a production-ready serverless web application from testing, deployment, security, all the way through to observability. The motivation for this course is to give you hands-on experience building something with serverless technologies while giving you a broader view of the challenges you will face as the architecture matures and expands.

We will start at the basics and give you a firm introduction to Lambda and all the relevant concepts and service features (including the latest announcements in 2020). And then gradually ramping up and cover a wide array of topics such as API security, testing strategies, CI/CD, secret management, and operational best practices for monitoring and troubleshooting.

If you enrol now you can also get 15% OFF with the promo code “yanprs15”.

Enrol now and SAVE 15%.


Check out my new podcast Real-World Serverless where I talk with engineers who are building amazing things with serverless technologies and discuss the real-world use cases and challenges they face. If you’re interested in what people are actually doing with serverless and what it’s really like to be working with serverless day-to-day, then this is the podcast for you.


Check out my new course, Learn you some Lambda best practice for great good! In this course, you will learn best practices for working with AWS Lambda in terms of performance, cost, security, scalability, resilience and observability. We will also cover latest features from re:Invent 2019 such as Provisioned Concurrency and Lambda Destinations. Enrol now and start learning!


Check out my video course, Complete Guide to AWS Step Functions. In this course, we’ll cover everything you need to know to use AWS Step Functions service effectively. There is something for everyone from beginners to more advanced users looking for design patterns and best practices. Enrol now and start learning!