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Eric Johnson

@edjgeek.bsky.social
1.3K followers 7 following 110 posts

Principal Deceloper Advocate - AWS

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Eric Johnson @edjgeek.bsky.social · 25/08/2026
Ok, I am not a rust guy, but I AM a durable functions guy so I am really excited about this. There is now a preview release of the rust sdk for AWS Lambda durable functions!! Check it out and let us know what you think. Also, help us make it better! github.com/aws/aws-dura...
github.com
GitHub - aws/aws-durable-execution-sdk-rust: Experimental preview. NOT FOR PRODUCTION USE.
Experimental preview. NOT FOR PRODUCTION USE. Contribute to aws/aws-durable-execution-sdk-rust development by creating an account on GitHub.
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Eric Johnson @edjgeek.bsky.social · 18/08/2026
I love AWS Lambda MicroVMs! There are so many things you can do with it. Including an ephemeral multi-player game server where you get to shoot MY face :D I call is Faceteroids. Want to know how to build it? Check it out here! youtu.be/WcAksz0qPcQ?...
youtu.be
Building Multiplayer Game Servers with AWS Lambda MicroVMs
YouTube video by AWS Developers
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Eric Johnson @edjgeek.bsky.social · 14/08/2026
Interested in learning more about #AWSLambda MicroVMs? Join us for an online, FREE, HANDS-ON workshop next Wednesday! We provide everything you need! s12d.com/mvm/workshop
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Eric Johnson @edjgeek.bsky.social · 15/07/2026
So I have been using this for the last week and I absolutely love it. This is the browser based Claude Code dev environment running on AWS Lambda MicroVMs with S3Files as persistence. There are two blogs and a repo. Start here, it link to the others. edjgeek.com/blog/claude-...
edjgeek.com
Lambda MicroVMs + S3 Files: My Claude Code Sandbox for iPad — edjgeek
A walkthrough of building a browser-based Claude Code shell that runs in an AWS Lambda MicroVM with a persistent S3 Files home. Signed in with Cognito, deployed with SAM.
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Eric Johnson @edjgeek.bsky.social · 05/06/2026
Today is CVPR Denver with AWS/Amazon. And it's all about Computer Vision. Something I haven't spent a lot of time with but decided to see how I could apply #serverless. Here is what I came up with. Check it out & if you're at CVPR come see me at the Amazon booth after 2! edjgeek.com/blog/9-tiles...
edjgeek.com
From 9 Tiles to 900: Scaling Computer Vision Pipelines — edjgeek
Computer vision pipelines are scale problems disguised as orchestration problems. You can solve both with a single function.
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Eric Johnson @edjgeek.bsky.social · 18/05/2026
It's here!! AWS SAM CLI now handles dynamic loops to generate resources! This and other CloudFormation language extensions are now live! I stinking LOVE this! builder.aws.com/content/3DiJ...
builder.aws.com
Dynamic Looping Comes to AWS SAM | AWS Builder Center
AWS SAM CLI now supports CloudFormation Language Extensions, bringing Fn::ForEach, Fn::Length, Fn::ToJsonString, FindInMap with default values, and conditional deletion policies to your local developm...
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Eric Johnson @edjgeek.bsky.social · 13/05/2026
Not trying to brag but I just compiled an example of "provable" code in rust using hydro.run. Let's be honest, I know nothing about rust, But I do know distributed apps and this has been really fun to dig in to.
hydro.run
Hydro - a Rust framework for correct and performant distributed systems
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Eric Johnson @edjgeek.bsky.social · 12/05/2026
The VERY FIRST event I aver did for AWS was @GOTOcon #Chicago. Now, 9 years later I am headed back! My talk - Finding Determinism in a Non-Deterministic World
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Eric Johnson @edjgeek.bsky.social · 01/05/2026
Did I mention I am coming to Greece? So excited to be joining the Gen AI Unfold speaker line up! I'm discussing From Implicit to Provable: The Future of AI-Generated Systems. Yes, there will be #Serverless, yes there will be #GenAI. Join me May 14 and 15! productledhub.com/agenda-ai-su...
productledhub.com
From Implicit to Provable: The Future of AI-Generated Systems | Product-Led Growth Hub
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Eric Johnson @edjgeek.bsky.social · 27/04/2026
Hey #Athens developers, I am coming to Greece in a few weeks! Super excited! I have a few stops. One of them is foobar.i/o where I will be talking about orchestrating agents with #serverless. I would love to see you! www.meetup.com/foobar-io/ev...
meetup.com
Event Driven AI Orchestrator [foobar.i/o #10], Tue, May 12, 2026, 6:30 PM | Meetup
We are rolling into the **10th** iteration of foobar.i/o with **"Event Driven AI Orchestrator"** **The case:** **AI agents** are powerful but unpredictable. The real chall
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Eric Johnson @edjgeek.bsky.social · 27/04/2026
I get the allure of local MCP servers. Simple, easy. But "reinstall for the latest updates"? That's a SaaS lesson we already learned. OX Security put numbers on it. 200K servers, no auth. Wrote up why serverless is a safer default. edjgeek.com/blog/mcp-ser...
edjgeek.com
200,000 MCP Servers Are Exposed. Here's Why Serverless Is Safer. — edjgeek
MCP's most popular transport has no authentication. AWS serverless removes the conditions that make that dangerous.
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Eric Johnson @edjgeek.bsky.social · 23/04/2026
It's 2026 and people are still writing posts about cold starts being the reason not to go serverless. So I made a gravestone, built a benchmarker, and wrote about it. edjgeek.com/blog/lambda-...
edjgeek.com
Cold Starts Are Dead — edjgeek
Lambda cold starts in 2026 are 200-400ms for Python, sub-100ms for Go and Rust, and 90-140ms for Java with SnapStart. The data says the argument is over.
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Eric Johnson @edjgeek.bsky.social · 20/04/2026
I often hear about Lambda functions that spend most of their time waiting on I/O. Built a demo on Lambda Managed Instances to test the cost math. Not as clear-cut as I expected. edjgeek.com/blog/lambda-managed-instances/
edjgeek.com
Lambda Managed Instances: A Working Demo and the Math Behind It — edjgeek
Lambda Managed Instances let multiple invocations share the same CPU while waiting on network calls. Here's a working demo, the cost math, and when LMI actually saves you money.
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Eric Johnson @edjgeek.bsky.social · 12/04/2026
Fun weekend project. My brother runs a pipelaying crew. I built him a calculator app but every change went through me. So I built a Telegram bot that lets him describe what he wants in plain English. An AI agent handles the rest. edjgeek.com/blog/pipelayer-agent
edjgeek.com
My Brother Doesn't Code. Now He Ships Features. — edjgeek
How I built a Telegram bot with Amazon Bedrock AgentCore and Claude that lets a non-developer iterate on a production PWA using plain English.
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Eric Johnson @edjgeek.bsky.social · 10/04/2026
S3 Files just launched. Lambda functions can mount S3 buckets as a file system now. I built AI code review agents on it with a full SAM template. Durable function orchestrator, two Strands agents, shared S3 Files workspace. Every IaC gotcha documented. edjgeek.com/blog/s3-file...
edjgeek.com
Lambda Just Got a File System. I Put AI Agents on It. — edjgeek
S3 Files mounts your S3 bucket as a local file system in Lambda. I built AI code review agents that share a workspace through it, orchestrated by a durable function.
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Eric Johnson @edjgeek.bsky.social · 12/03/2026
So this is one of the funnest projects I have done in a long time! If you have ever wondered what this #Serverless thing is, join me as I explain it to my mom. Thanks Mom. www.youtube.com/watch?v=vg1Q...
youtube.com
Serverless with Mama J
YouTube video by AWS Developers
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Eric Johnson @edjgeek.bsky.social · 11/03/2026
I am pretty excited to be doing this talk in Charleston. It's a new talk for me and we have been having fun with it! Come join us in Charleston, April 1! www.meetup.com/chs-amazon-w...
meetup.com
Building Video Approval Pipelines with Serverless and AI, Wed, Apr 1, 2026, 6:00 PM | Meetup
In this session, we'll build an automated system to review videos at scale using serverless and AI. It checks the video's audio transcription, text on screen, and visuals a
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Eric Johnson @edjgeek.bsky.social · 05/03/2026
Ok, staying on the theme of AWS Lambda durable functions, I published a demo for you to play with. This is a video analysis and approval pipeline using durable functions, AI and GenAI. Check it out here -> github.com/singledigit/...
github.com
GitHub - singledigit/durable-function-video-scanner: Video analysis pipeline using AWS Lambda durable functions and AI
Video analysis pipeline using AWS Lambda durable functions and AI - singledigit/durable-function-video-scanner
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Eric Johnson @edjgeek.bsky.social · 19/02/2026
Hey Florida International University, I'll be talking #Serverless and #AI on campus and I cannot wait! Come learn how to automate AI tasks using serverless, including the new AWS Lambda durable functions! For more info -> www.meetup.com/aws-cloud-cl...
meetup.com
Speaker Session: Building a Video Approval Pipeline with Serverless & AI, Wed, Mar 4, 2026, 3:00 PM | Meetup
Join us for a session on creating a simple automated system to review videos **using serverless tech and AI**. We'll check video audio, on-screen text, and visuals for issu
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Eric Johnson @edjgeek.bsky.social · 16/01/2026
Some Friday fun, in response to the poll I put out on Tuesday about deterministic code, I wrote a blog about what I learned -> dev.to/aws/is-this-...
dev.to
Is this code deterministic?
I recently posted a small code snippet in a LinkedIn poll and asked what sounded like a simple...
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Eric Johnson @edjgeek.bsky.social · 13/01/2026
Ok, so Gracie (#5) has created her own YouTube channel called “No Thumbs All Fun”. Yeah, she has her dad’s humor. If you like fun and a bit of weird, check it out. youtube.com/@nothumbsall...
youtube.com
No Thumbs All Fun
Welcome to No Thumbs All Fun—the channel where limits are redefined and creativity knows no bounds! I'm Gracie Mae, and yes, I rock one finger on each hand. But don’t worry—I’m here to prove that you ...
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Eric Johnson @edjgeek.bsky.social · 15/12/2025
It was so much fun deep diving on AWS Lambda durable functions with @embano1.mgasch.com at this year's re:Invent! And now we are doing it again and YOU get to ask questions! Join us tomorrow for "Serverless Office Hours | AWS Lambda durable functions". Watch us at twitch.tv/aws at 11 AM Pacific.
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Eric Johnson @edjgeek.bsky.social · 28/11/2025
Here is some Friday pre:Invent fun... I am doing a session on Wednesday that is NOT in the catalog, but it will be. You will NOT want to miss this. Look for me - 10:30 AM (Vegas Time) In the Mandalay Bay.
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Eric Johnson @edjgeek.bsky.social · 27/11/2025
Hey #serverless developers I hope to see you at @awscloudconcept.bsky.social re:Invent next week. If you are doing the "Road to re:Invent hackathon" (s12d.com/rtri), buckle up, I'll be one of your hosts! If you love serverless, find @julianwood.com or myself to get one of these!
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Eric Johnson @edjgeek.bsky.social · 24/11/2025
Another fun pre:Invent release. This has been a highly requested feature, it's finally out! Amazon API Gateway Portals! aws.amazon.com/blogs/comput...
aws.amazon.com
Improve API discoverability with the new Amazon API Gateway Portal | Amazon Web Services
In this post, we will show how you can use the new portal feature to create customizable portals with enhanced security features in minutes, with APIs from multiple accounts, without managing any infr...
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Eric Johnson @edjgeek.bsky.social · 31/10/2025
Oh this makes me happy! With #AWSSAM now supporting finch, I am now completely off of Docker. docs.aws.amazon.com/serverless-a...
docs.aws.amazon.com
Installing Finch to use with the AWS SAM CLI - AWS Serverless Application Model
Instructions about installing Finch for use with the AWS SAMCLI.
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Eric Johnson @edjgeek.bsky.social · 01/09/2025
So excited to join the Melbourne AWS Serverless UG tonight! I'll be discussing, you guessed it, #serverless! We will look at an agentic app I built with serverless and see how @kirodotdev helped me out! www.meetup.com/melbourne-se...
meetup.com
September Serverless Meetup - Special Event, Mon, Sep 1, 2025, 6:00 PM | Meetup
**September Serverless Meetup - Special Event** The September Serverless Meetup is a special event hosted at **The Events Hub (NAB) at 395 Bourke Street** at 6pm. We have
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Eric Johnson @edjgeek.bsky.social · 28/08/2025
A while back I did a video explaining the new Blue/Green deployment options for ECS. It just got released. Have a look www.youtube.com/watch?v=xnHD...
youtube.com
The Complete Guide to ECS Blue/Green Deployments on AWS
YouTube video by AWS Developers
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Eric Johnson @edjgeek.bsky.social · 26/08/2025
Tonight is the night! AWS UG Perth! can't wait to meet everyone there and talk some #Serverless and #GenAI! www.meetup.com/amazon-web-s...
meetup.com
Building Intelligent Agents at Scale: A Serverless Architecture Approach, Tue, Aug 26, 2025, 5:30 PM | Meetup
For our August meetup, we are delighted to welcome esteemed and highly entertaining AWS Principal Developer Advocate, Eric Johnson as part of the ***Serverless DevRel Roads
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Eric Johnson @edjgeek.bsky.social · 11/07/2025
🚀 Don't miss GOTO Serverless Bengaluru 2025! Join AWS Lambda's Product Head Janak Agarwal for a 400+ level deep dive into "Production Serverless Patterns for Extreme Scale" 🎟️ s12d.com/goto-serverless Code: EDJGEEK10 for 10% off Aug 8, 2025 #AWS
s12d.com
GOTO Serverless Bengaluru 2025
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Eric Johnson @edjgeek.bsky.social · 03/07/2025
🌟 Thrilled to welcome Akshatha Laxmi to GOTO Serverless Bengaluru! Join us Aug 8th to dive into Serverless Agents with AWS, Strands SDK & MCP. AWS-certified solution architect sharing real-world implementations you won't want to miss! 🎯 Register: s12d.com/goto-serverless
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Eric Johnson @edjgeek.bsky.social · 26/06/2025
🌟 Excited to announce Jeevan Dongre at GOTO Serverless Bengaluru 2025! AWS Community Hero & @antstack.com CEO building India's largest AWS community. A true serverless pioneer! 🎫 Join us: s12d.com/goto-serverless #GOTOServerless, @gotocon.com, @awscloud.bsky.social
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Eric Johnson @edjgeek.bsky.social · 21/06/2025
I'm going to my first open source conference! Monday, I'll be hanging at the @linuxfoundation.org 's Open Source Summit of North America. I'm officially challenging you to a coding battle. Find me at the AWS booth in the afternoon and we will duke it out :) events.linuxfoundation.org/open-source-...
events.linuxfoundation.org
Open Source Summit North America | LF Events
The premier vendor-neutral conference for open source developers and technologists to collaborate, share information and learn about the latest technologies and innovations across open source.
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Eric Johnson @edjgeek.bsky.social · 21/06/2025
Oh boy, @quinnypig.com has found me. But, now I have found him! Hey Corey!
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Eric Johnson @edjgeek.bsky.social · 17/06/2025
Reminder, today's #Serverless Office Hours is on Serverless Land YouTube -> www.youtube.com/live/6qW24zy...
youtube.com
Join the AWS Lambda Hackathon! - Week 3 | Serverless Office Hours
Welcome to the AWS Lambda Hackathon, where you can turn your serverless dreams into reality and compete for $15,000 in cash prizes! Join us as we help you go through some of the building blocks for b...
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Eric Johnson @edjgeek.bsky.social · 16/06/2025
Hey #Serverless! Tomorrow's Serverless Office Hours will be on YouTube only at www.youtube.com/live/6qW24zy.... We are discussing the current hackathon and some questions we have received. We also have experts to answer new questions you might have!
youtube.com
Serverless Office Hours | Lambda Hackathon Checkin
YouTube video by Serverless Land
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Eric Johnson @edjgeek.bsky.social · 10/06/2025
I showed a rest client plugin for VSCode today that many of you asked about. It was this one marketplace.visualstudio.com/items?itemNa...
marketplace.visualstudio.com
REST Client - Visual Studio Marketplace
Extension for Visual Studio Code - REST Client for Visual Studio Code
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Eric Johnson @edjgeek.bsky.social · 10/06/2025
In just a half hour, we're doing #Serverless Office Hours dedicated to the AWS Lambda Hackathon (s12d.com/hasck-lambda). We'll demo using AWS SAM to speed up serverless development. And we'll be answering your tech questions to help you build the best submission you can! Watch -> twitch.tv/aws
s12d.com
Serverless Land URL Shortner
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Eric Johnson @edjgeek.bsky.social · 04/06/2025
🎤 Don't miss David Anderson at #GOTOServerless Bengaluru 2025! Author of "The Value Flywheel Effect" & Cloud Architect at G-P sharing insights on serverless-first & cloud modernization. Join us Aug 8! Register: s12d.com/goto-serverless #CloudComputing #Serverless
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Eric Johnson @edjgeek.bsky.social · 02/06/2025
🎉 Thrilled to announce @erikch.bsky.social is joining us at #GOTOServerless Bengaluru! As a Sr Dev Advocate at @awscloud.bsky.social, Erik brings expert front-end & #serverless insights to help devs build better cloud apps. Aug 8, 2025 Register: s12d.com/goto-serverless @gotocon.com @antstack.com
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Eric Johnson @edjgeek.bsky.social · 30/05/2025
GOTO Serverless Bengaluru is just two months away! Early Bird tickets are only ₹999 and are going fast! Learn #Serverless from the folks building the services & the ones using it at scale every day! Register now at s12d.com/goto-serverl... @awscloud.bsky.social , @gotocon.com , & @antstack.com
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Eric Johnson @edjgeek.bsky.social · 29/05/2025
Hey builders! If you work with #Serverless, #ECS, or #EKS and want up-to-date information for your code assistants, you're in luck! AWS released three new MCP servers to give you the latest info straight from the source! Check it out -> aws.amazon.com/blogs/aws/en...
aws.amazon.com
Enhance AI-assisted development with Amazon ECS, Amazon EKS and AWS Serverless MCP server | Amazon Web Services
AWS introduces specialized Model Context Protocol (MCP) servers for Amazon ECS, EKS, Finch and AWS Serverless, providing real-time contextual responses and service-specific guidance to guide AI assist...
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Eric Johnson @edjgeek.bsky.social · 13/05/2025
Kansas City! I am literally on a plane to come see you! I am speaking on #Serverless and #GenAI at the Kansas City AWS UG! Tomorrow night! Come hear about Agents, MCP Servers, and all the other GenAI buzzwords I can think of! www.meetup.com/awskcug/even...
meetup.com
Taking GenAI from Paper to Production with Serverless, Wed, May 14, 2025, 5:30 PM | Meetup
Start your journey into the world of Serverless and GenAI with this foundational session. Through a real-world application example, discover why serverless is the ideal arc
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Eric Johnson @edjgeek.bsky.social · 09/05/2025
I'll be speaking on hashtag#Serverless and hashtag#GenAI at CoudSummit.ca. We are running a workshop on "Building Agentic Workflows on Serverless". If you are attending the summit, register and join us! If you are not attending the summit... Attend the summit!😁
aws-experience.com
Workshop: Building Serverless Agentic Workflows on AWS
Join AWS experts at Cloud Summit 2025 for hands-on training in AI agents and autonomous workflows. Learn to build virtual assistants using AWS Bedrock, implement Tool Use patterns, and orchestrate wit...
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Eric Johnson @edjgeek.bsky.social · 08/05/2025
#AWSStepFunctions + #JSONata = fewer transitions! An example calculating the average CSAT (Customer Satisfaction) score for an event $states.result.Items[type.S = 'CSAT'].csatEvent.S ~> $map(function($v) {$number($v)}) ~> $average ~> $round(2)
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Eric Johnson @edjgeek.bsky.social · 07/05/2025
Tip for #GenAI in #AWSStepFunctions. By using a pass state to format the input and the Bedrock Converse task, I can easily add multiple models to compare outputs. In the converse task, I simply change the desired model.
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Eric Johnson @edjgeek.bsky.social · 02/05/2025
Hey Kansas City AWS UG (@awskc.bsky.social), I'm bringing #Serverless and #GenAI to your UG on Wed May 14! For more info -> www.meetup.com/awskcug/even...
meetup.com
Taking GenAI from Paper to Production with Serverless, Wed, May 14, 2025, 5:30 PM | Meetup
Start your journey into the world of Serverless and GenAI with this foundational session. Through a real-world application example, discover why serverless is the ideal arc
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Eric Johnson @edjgeek.bsky.social · 17/04/2025
In about 30 minutes, I am hosting my first #ContainersFromTheCouch! We are discussing ECS Service Connect! I would love to see you! www.youtube.com/watch?v=4xU7...
youtube.com
Amazon ECS Service Connect - Securely Connect Services | Hosted by Eric Johnson
YouTube video by Containers from the Couch
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Eric Johnson @edjgeek.bsky.social · 15/04/2025
Today on #Serverless Office Hours, I'll be showing you how I code locally. Some #AWSSam, #AWSToolKit, #WorkflowStudio, #Bedrock, so on and so forth. Learn some tips and tricks and teach me some too. Meet me at 11 AM PT on twitch.tv/aws
twitch.tv
AWS - Twitch
Security LIVE! with Sysdig and NETSCOUT
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Eric Johnson @edjgeek.bsky.social · 08/04/2025
Today's Serverless Office Hours: Norm Johanson, show a developer preview for local Lambda support in a .NET idiomatic experience. Learn to use the .NET Aspire app host to orchestrate Lambda functions in serverless apps & an API Gateway emulator to run functions on REST API. 11 AM PT twitch.tv/aws
twitch.tv
AWS - Twitch
Amazon Web Services (AWS) is a secure cloud services platform offering compute power, database storage, content delivery, & other functionality. Explore live coding demos 💻, training and certification...
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