Cloud Architect and Fullstack Developer
How to write reusable middleware for Rust Lambda functions using tower, the generic middleware engine that already underpins the AWS Lambda Rust runtime. Includes a complete DynamoDB-backed IP rate limiter with SAM deployment.
After 458 issues, 3,073+ curated links, and nearly a decade of weekly curation, FullStack Bulletin is closing. Here's the story of the journey, why it's ending, and what lives on.
Learn how I added Bluesky likes and avatars to my Astro blog using the bluesky-likes web components package. No API keys, no server-side code, just a few lines of Astro magic.
Luciano Mammino's 2025 year in review: releasing the fourth edition of Node.js Design Patterns, progressing on Crafting Lambda Functions in Rust, approaching 5 years at FourTheorem, public speaking, AWS Bites podcast, open source contributions, and some major personal milestones.
The fourth edition of Node.js Design Patterns is here. As one of the authors, I share why we wrote a new edition, what's new, and my thoughts on where Node.js is heading.
Learn how to debug silent failures in AWS API Gateway HTTP when your OIDC provider doesn't implement the .well-known/openid-configuration endpoint. Enable FailOnWarnings to catch these issues before they break your production deployment.
In his 2024 year-in-review, Luciano Mammino covers his work in Rust, serverless AWS projects, his contributions to open source projects like Middy, public speaking engagements, the AWS Bites podcast, and personal milestones.
Discover the journey behind FullStack Bulletin, a weekly newsletter for full-stack developers with 404 curated issues over 8 years. Learn about its origins, technical implementation, and future plans.
Announcing Crafting Lambda Functions in Rust, a new book that guides you through building efficient, reliable, and cost-effective AWS Lambda functions using Rust, written by Luciano Mammino and James Eastham. Learn why Rust and serverless are a perfect match. Early access is now available at rust-lambda.com!
This article discuss the reason why I wanted to migrate this blog from Gatsby to Astro and the process I followed to do it. Plus a bunch of interesting and quirky bugs that I had to troubleshoot and fix along the way.
In 2023, Luciano Mammino attended his first re:Invent, grew open source projects like Middy, continued podcasting on AWS Bites, and strengthened connections through public speaking and live coding. He also contributed to sustainability through LifeFoliage's Landscape Hunt game.
The software industry sees an interesting tension between generative AI capturing the software lifecycle and low-level languages aiming for better performance. As developers we must understand these trends and find a strategy. Learn one or both?
When building a custom API Gateway authorizer, mysterious 500 errors can happen. This post shows how to enable CloudWatch logging for API Gateway to inspect the logs and debug problems.
Rust is an ideal language for writing AWS Lambda functions. Its performance can reduce execution time and memory usage, lowering costs. Its safety features like no nulls and error handling can reduce bugs.
This article walks through the challenges of cross-compiling a Rust web app from a Mac Silicon machine to an x86 Docker container using musl, RusTLS, multi-stage builds and other techniques to produce a small container image.
This article explores the multifaceted definition of a senior software engineer. It covers the technical skills like going a level deeper and having a broad understanding, as well as soft skills like communication, autonomy, business acumen, and leadership. It provides tips on how to grow, such as pair programming and content creation. The path to seniority requires dedication, perseverance and a…
In 2022 Luciano Mammino was awarded AWS Serverless Hero, confirmed as Microsoft MVP, became Codemotion Ambassador, spoke at 25 events, produced 45 AWS Bites podcast episodes, streamed live coding 36 times, surpassed 8M downloads for Middy and much more. His plans for 2023 include growing his AWS and Serverless expertise, learning Rust and Solid.js.
Learn how to create a private, invite-only website using Next.js, AirTable, custom React hooks, and Vercel deploy. The post covers backend APIs in Next.js, data storage with AirTable, validating access with invite codes, collecting user input, and deploying the final app.
The AWS Solutions Architect Professional certification is one of the toughest IT certifications. This post shares preparation tips, exam strategies, study resources, and sample questions to help you succeed.
In 2021 I joined fourTheorem, became a Microsoft MVP, spoke at many conferences, learned Rust, contributed to open source and much more. I reflect on my professional achievements over the past year.
This post explains how to conditionally create resources in AWS CDK using CfnCondition. It provides a practical example of creating an S3 bucket based on an SSM parameter value. The post covers defining a condition, attaching it to a low-level CDK construct, and importing the conditionally created resource.
This post explains how to use CDK to provision Ubuntu EC2 instances on AWS. It covers finding the right AMI, adding security groups, using init scripts, installing AWS utilities, and more.
The boto3 Python SDK allows intercepting requests before they are sent to AWS through an event handler system. This article shows how to use it to gzip the payload of PutMetricData requests sent to CloudWatch.
This article explores how to convert values to strings in Rust using traits like Debug, Display and ToString. It explains the difference between user-facing and debug representations.
This article explores return type polymorphism in Rust through examples like Default::default() and a custom dice rolling library. The technique allows writing generic functions that can return different types based on usage. Useful for extensible APIs.
This article provides a list of free and paid resources to learn Rust in 2021 including books, blogs, videos, newsletters, podcasts, communities, exercises, workshops, and open source projects.
Luciano Mammino reflects on his 2020, including publishing Node.js Design Patterns Third Edition book, giving 13 conference talks, joining Fabfitfun as Principal Engineer, releasing Middy 1.0, launching Linkerflix MVP, and setting goals for improving as a software engineer, cloud architect, and indie maker in 2021.
This article summarizes the experience of two developers learning Rust by building an open source project and having it reviewed live by a Rust expert. It covers the improvements suggested during the review, including simplifying project structure, adding documentation, handling strings, removing code duplication, improving input validation and testing.
This article explains what JWTs (JSON Web Tokens) are, looking at their internal structure with header, body, and signature. It illustrates how they enable stateless authentication and authorization in distributed systems.
The middleware framework Middy reached version 1.0, bringing middleware capabilities to AWS Lambda. This allows cleaner handler code by extracting cross-cutting concerns into reusable middleware.
Luciano Mammino reflects on his 2019 tech career achievements including conference talks, career moves, open source contributions, and blog posts. He also sets realistic goals for 2020 like finding a new job, releasing Middy 1.0, and getting an advanced AWS certification.
Learn how to configure NPM packages to publish only the files needed by users, avoiding bloating node_modules folders.
This article shows how to quickly build web app prototypes using Fastify for the backend API and Preact for the frontend UI. It also covers how to dockerize the app for easy sharing. Key points are the plugin architecture of Fastify, the lightweight nature of Preact, and the use of htm for defining UI without transpilation.
This article explores different ways to create iterators and iterable values in Javascript for dynamic sequence generation, specifically using functions, iterators, iterables and generators. It provides code examples for implementing the Fibonacci sequence with each approach.
A personal 2018 year in review including achievements like migrating my blog to a serverless setup, 8 conference talks, career growth at Vectra, open source contributions, and reflections on side projects. Outlines goals for 2019 like writing more, releasing middy 1.0, and getting advanced AWS certifications.
Customize your terminal prompt with Bash PS1 variable and RANDOM function to show a random emoji on each command. Learn Bash arrays, escape sequences, and functions. Emojis make your terminal more fun and keep your morale up during debugging.
This article explores how to simulate multiple return values in JavaScript using arrays and objects. It covers use cases like React Hooks and async/await error handling. The pattern enables elegant APIs but has performance implications.
The AWS Solutions Architect Associate exam covers a wide range of AWS services. This post shares helpful notes and tips for studying key concepts like EC2, S3, VPC, DynamoDB, and more. It provides advice on the exam mindset and lists official and unofficial preparation resources. The notes summarize important details around provisioned throughput, instance types, database replication and more that…
The AWS CLI s3 cp command supports streaming content to and from S3 using stdin/stdout with the - argument. This enables powerful pipelines without intermediary files.
In 2017, Luciano Mammino gave 17 conference talks, contributed to open source projects like Fastify and Middy, and learned new technologies like Terraform and Ansible. He looks forward to presenting more in 2018 and learning technologies like Rust, Elastic Search, and Kubernetes.
This article explores the history of cloud computing from bare metal servers to serverless, explaining key innovations like IaaS, PaaS, containers and FaaS along the way.
This post explains how to use Let's Encrypt and Certbot to automatically generate and renew SSL certificates for OpenVPN. It provides a complete Terraform setup as a practical example.
Luciano Mammino recounts his experience speaking at the Shift conference in Split, Croatia about Serverless architecture and its pros and cons. He provides links to his talk video, slides, and a Twitter moment.
The author gave a talk on building universal JavaScript web apps at Codemotion Rome 2017. He updated his Judo Heroes demo to v2 with React 15.4, React Router 4, Webpack 2, and Express 5. The talk got positive feedback from the audience. Slides and video are linked.
This article explains how short URLs work and provides code examples to expand them in Node.js using request module or tall library. It covers basics of URL redirection, shows how to disable auto-redirect in request module, and introduces tall - a promise-based Node.js library to unshorten URLs.
This post summarizes a talk about building a serverless architecture on AWS Lambda using the Serverless framework. It covers topics like authentication, authorization, testing, CI/CD, and cost monitoring. The presenters share lessons learned from real-world experience building a production serverless application.
A personal review of 2016 highlights career growth through a new job, open source contributions, conference talks, and co-authoring a Node.js book. The post also covers learning new technologies like Elixir and AWS, while noting failures like lack of focus on a side project.
This blog post summarizes a talk about building a Universal JavaScript application with React given at Codemotion Milan 2016. It includes commentary for each slide, photos from Twitter, and a video recording. The post explains what Universal JavaScript is, its benefits, challenges, and walks through demo code to add server-side rendering and routing to a React app.
This blog post explains how to build a distributed application using Node.js and ZeroMQ that cracks JWT tokens. It provides a step-by-step guide on implementing the application and links to two in-depth articles on RisingStack that cover the theory and coding details.
Luciano Mammino recently participated in two interviews discussing his work with Node.js and JavaScript as well as his experience as an author writing books about Node.js design patterns.