All posts

2025

March

• March 24, 2025 » Bigger things are usually more complex
• March 17, 2025 » The response size of an AWS Lambda function can be reduced with compression
• March 12, 2025 » What is the ExpiredToken error with S3 signed URLs and how to avoid it
• March 10, 2025 » What is POSSE and how it changed how I use social media
• March 6, 2025 » JavaScript best practice: use return await
• March 3, 2025 » Thoughts on abstractions

February

• February 20, 2025 » What is the iam:PassRole permission in AWS IAM
• February 17, 2025 » AWS CDK best practice: include the region in the stack's ID
• February 14, 2025 » A one-liner for getting the exact versions of applications
• February 12, 2025 » AppSync footgun: util.error does not work if called with non-string arguments

January

• January 30, 2025 » [Article] Developer practices for long-term product maintainability
• January 10, 2025 » Finally, it's possible to host EC2 instances without paying the public IPv4 price using CloudFront VPC origins
• January 8, 2025 » Deployment circle with CloudFront and Terraform
• January 6, 2025 » How hard it is to disable an IAM user when it does something suspicious?

2024

December

• December 23, 2024 » [Article] A first look into AWS's new Aurora DSQL database
• December 17, 2024 » My take on "How AWS needs to change"
• December 13, 2024 » Another smart product bites the dust
• December 12, 2024 » Thoughts on unreliable computing
• December 10, 2024 » Thoughts on using AI for coding

November

• November 28, 2024 » Notes on "How secure is secure enough in AWS?"
• November 24, 2024 » Notes on "Engineering Principles for Building Financial Systems"
• November 15, 2024 » Notes on Software defaults
• November 3, 2024 » The "new hire test"

October

• October 19, 2024 » GraphQL tip: Only make fields required if they are present for all users

September

• September 25, 2024 » GraphQL tip: Have the subscription types contain all filterable fields on the top-level.
• September 23, 2024 » How things work matters
• September 20, 2024 » The twists of the Ballmer puzzle
• September 19, 2024 » GraphQL non-nullable fields can lead to cascading null errors.
• September 17, 2024 » [Article] CloudTrail's horrible developer experience
• September 15, 2024 » Apollo's subscribeToMore is the wrong abstraction

August

• August 27, 2024 » [Article] AWS management account starter pack
• August 15, 2024 » The hidden cost multiplier of fixed-price cloud resources
• August 13, 2024 » [Article] Dataset preparation for training a neural text-to-speech model with Piper TTS
• August 9, 2024 » CloudFormation's ZipFile still does not support ESM imports
• August 8, 2024 » Fun fact: you can make an unsubscribable subscription to an SNS topic
• August 7, 2024 » Notes on "Hardest Problem in Computer Science: Centering Things"
• August 1, 2024 » Notes on "Review your own PRs"

July

• July 30, 2024 » [Article] How to auto-disable leaked IAM credentials
• July 23, 2024 » Notes on "Navigating Corporate Giants: Jeffrey Snover and the Making of PowerShell"
• July 18, 2024 » Notes on "Why Swift's type checker is so slow"
• July 16, 2024 » My notes on "Things you wish you didn't need to know about S3"
• July 15, 2024 » Notes on "DynamoDB now supports cross-account access. But is that a good idea?"
• July 11, 2024 » My notes on "The Trough of Despair"
• July 8, 2024 » Notes on "Subdomain Takeover: Ignore This Vulnerability at Your Peril"
• July 5, 2024 » My notes on "The security concerns of a JavaScript sandbox with the Node.js VM module"
• July 3, 2024 » My notes on "Visual Studio Code extensions are much less secure than browser extensions or even npm packages"
• July 1, 2024 » AWS adds passkeys support, warns root users must enable MFA

June

• June 27, 2024 » My notes on "If you're using Polyfill.io code on your site – like 100,000+ are – remove it immediately"
• June 25, 2024 » CloudFront supports OAC for Lambda, except it does not
• June 25, 2024 » [Article] The slow evolution of AppSync RDS support
• June 24, 2024 » SameSite cookies and CSRF vulnerabilities
• June 11, 2024 » [Article] How Cognito User Pools work
• June 8, 2024 » [Article] Introducing: subscriptions to books and courses

May

• May 28, 2024 » [Article] Hardcoded assumptions
• May 14, 2024 » [Article] Git Tips and Tricks

April

• April 30, 2024 » [Article] How to use tagged templates in AppSync to send queries to RDS
• April 16, 2024 » [Article] Fooled by encryption
• April 2, 2024 » [Article] DynamoDB basic operations

March

• March 19, 2024 » [Article] First experiences with Nix shell
• March 5, 2024 » [Article] Hard-to-debug unhandled rejection cases

February

• February 20, 2024 » [Article] How to transfer binary data efficiently across worker threads in NodeJs
• February 6, 2024 » [Article] Using worker pools in NodeJs

January

• January 23, 2024 » [Article] Modern JavaScript library starter
• January 9, 2024 » [Article] How to use CloudFront signed cookies to serve MPD or HLS videos

2023

December

• December 26, 2023 » [Article] How to remove a resource before creating it with the CDK
• December 12, 2023 » [Article] The problems with implicit AWS resources

November

• November 28, 2023 » [Article] Stable S3 signed URLs
• November 14, 2023 » [Article] The effects of not maintaining consistency with DynamoDB

October

• October 31, 2023 » [Article] How to securely generate and store IAM Secret Access Keys with Terraform
• October 17, 2023 » [Article] How to return a static file with a CloudFront function
• October 3, 2023 » [Article] How to use KMS keys with CloudFront signed URLs

September

• September 22, 2023 » [Article] New language features since Java 8 to 21
• September 22, 2023 » [Article] A categorized list of all Java and JVM features since JDK 8 to 21
• September 19, 2023 » [Article] How to use CloudFront signed URLs
• September 5, 2023 » [Article] CloudFront function to remove part of the request path

August

• August 26, 2023 » [Article] Announcing: S3 and CloudFront Signed URLs first public release
• August 22, 2023 » [Article] How to use the AWS Lambda streaming response type
• August 8, 2023 » [Article] How to generate keys for CloudFront URL signing with Terraform

July

• July 26, 2023 » [Article] Terraform module to generate secret values and store in SSM Parameter Store
• July 11, 2023 » [Article] CloudFront function to support HTML5 History API

June

• June 28, 2023 » [Article] How to provide information about the backend environment to frontend clients
• June 13, 2023 » [Article] Let's build a simple MQTT echo on AWS IoT Core
• June 3, 2023 » [Article] Announcing: Building GraphQL APIs with AWS AppSync book finished

May

• May 30, 2023 » [Article] How to detect device connection and disconnection in AWS IoT Core
• May 18, 2023 » [Article] Intro to PureScript for TypeScript developers
• May 2, 2023 » [Article] How to serve files from an AppSync API using S3 signed URLs

April

• April 18, 2023 » [Article] TLS certificates in IoT Core
• April 4, 2023 » [Article] How to implement file uploads to an AppSync API

March

• March 21, 2023 » [Article] Efficient multi-level pagination in GraphQL
• March 7, 2023 » [Article] First experiences with the new AppSync Javascript resolver runtime

February

• February 21, 2023 » [Article] How to use Topic Rules to react to MQTT messages in AWS IoT Core
• February 7, 2023 » [Article] How to generate IoT Core certificates with Terraform

January

• January 24, 2023 » [Article] Basic AWS IoT Core policy example and breakdown
• January 10, 2023 » [Article] How to connect to AWS IoT Core with MQTT.js

2022

December

• December 27, 2022 » [Article] How to manage IoT Core resources with Terraform
• December 20, 2022 » [Article] The basic building blocks of AWS IoT Core
• December 15, 2022 » [Article] SNS to AppSync subscription
• December 6, 2022 » [Article] How TOTP works

November

• November 29, 2022 » [Article] Getting started with the AWS JS SDK v3 included in the Node runtime
• November 22, 2022 » [Article] How to use AppSync enhanced subscription filtering
• November 15, 2022 » [Article] How to use SSM Parameter Store for sensitive inputs in Terraform
• November 8, 2022 » [Article] How to resolve interfaces and union types in AppSync
• November 1, 2022 » [Article] How to escape inputs in AppSync resolvers

October

• October 25, 2022 » [Article] How to generate an HTTPS certificate with node-forge
• October 18, 2022 » [Article] What is the identity in the AppSync resolver context
• October 11, 2022 » [Article] How to invoke a mutation with AppSync's HTTP data source
• October 4, 2022 » [Article] How to sign, verify, and encrypt JWTs in Node

September

• September 27, 2022 » [Article] How to migrate to CloudFront Origin Access Control from Origin Access Identity
• September 20, 2022 » [Article] How to interact with IoT Core shadows from AppSync
• September 13, 2022 » [Article] Intro to Lucene
• September 6, 2022 » [Article] How to read values from SSM Parameter Store and Secrets Manager with AppSync HTTP data source

August

• August 30, 2022 » [Article] How to send notifications to SNS, SQS, and EventBridge from AppSync
• August 23, 2022 » [Article] Modeling common GraphQL patterns in DynamoDB
• August 16, 2022 » [Article] How to call API Gateway from AppSync with IAM authorization
• August 9, 2022 » [Article] How to call a protected external API using AppSync HTTP data source
• August 2, 2022 » [Article] Use the HTTP data source to interact with HTTP APIs directly from AppSync

July

• July 26, 2022 » [Article] How to use RDS as a Data Source for AppSync
• July 19, 2022 » [Article] Efficient filtering in DynamoDB
• July 12, 2022 » [Article] The surprising properties of DynamoDB pagination
• July 5, 2022 » [Article] How to resolve complex types with AppSync resolvers

June

• June 29, 2022 » [Article] How to run SQL scripts against the RDS Data API with Terraform
• June 22, 2022 » [Article] How to remove the RDS master user password from the Terraform state
• June 15, 2022 » [Article] How IAM permissions work with AppSync
• June 7, 2022 » [Article] How to set up Amazon RDS password rotation with Terraform
• June 3, 2022 » [Article] How to monitor Syncthing

May

• May 24, 2022 » [Article] How to add a custom domain to an AppSync API
• May 17, 2022 » [Article] How to save entered values in Bash
• May 10, 2022 » [Article] How to hash passwords and when not to
• May 3, 2022 » [Article] How to write a simple systemd timer

April

• April 19, 2022 » [Article] The easiest way to set up a chat with your Telegram bot
• April 12, 2022 » [Article] How to implement rate limiting for an AppSync API
• April 5, 2022 » [Article] How to use Lambda authorization with AppSync

March

• March 29, 2022 » [Article] How to implement access control for a Telegram bot
• March 22, 2022 » [Article] How to configure Auth0 with AWS AppSync
• March 15, 2022 » [Article] How to run npm ci from Terraform
• March 9, 2022 » [Article] Real-time data with AppSync subscriptions
• March 1, 2022 » [Article] Send notifications to a Telegram bot for events in an AWS account

February

• February 22, 2022 » [Article] Intro to AppSheet
• February 15, 2022 » [Article] Error handling in AppSync
• February 8, 2022 » [Article] Deploy a serverless Telegram bot to AWS using Terraform
• February 1, 2022 » [Article] How to use ES6 modules and top-level await in AWS Lambda

January

• January 25, 2022 » [Article] How to delay calling a Lambda function using Step Functions
• January 18, 2022 » [Article] How to implement access control in a GraphQL API
• January 11, 2022 » [Article] How to periodically call a Lambda function
• January 4, 2022 » [Article] How to use Cognito with AppSync

2021

December

• December 28, 2021 » [Article] AppSync Cognito directives
• December 21, 2021 » [Article] Custom Aggregations in Logstash with the Ruby Filter Plugin
• December 14, 2021 » [Article] Pipeline resolvers in AppSync
• December 7, 2021 » [Article] How to use DynamoDB with AppSync

November

• November 30, 2021 » [Article] How to use Lambda resolvers with AppSync
• November 23, 2021 » [Article] Anatomy of an AppSync resolver
• November 16, 2021 » [Article] How to maintain database consistency in DynamoDB
• November 9, 2021 » [Article] What are Resolvers in AppSync and how they work
• November 2, 2021 » [Article] Foreign key constraints in DynamoDB

October

• October 26, 2021 » [Article] AWS AppSync: Getting started
• October 19, 2021 » [Article] What is AWS AppSync
• October 5, 2021 » [Article] CloudFront cache problems and how to solve them

September

• September 28, 2021 » [Article] How to configure CloudFront for the HTML5 history API
• September 21, 2021 » [Article] How token revocation works in Cognito
• September 14, 2021 » [Article] How to use the refresh token with Cognito
• September 7, 2021 » [Article] How to secure the Cognito login flow with a state nonce and PKCE

August

• August 31, 2021 » [Article] AWS security case study: Vulnerable roles
• August 24, 2021 » [Article] How to integrate with Elastic Stack via Logstash
• August 17, 2021 » [Article] How to add Cognito login to a website
• August 10, 2021 » [Article] AWS security case study: Unprotected logs
• August 3, 2021 » [Article] AWS security case study: Hardcoded credentials

July

• July 29, 2021 » [Article] Introducing: Async/await in Javascript video course
• July 27, 2021 » [Article] Do not use fs sync methods in Javascript, use fs.promises instead
• July 20, 2021 » [Article] How to avoid uncaught async errors in Javascript
• July 13, 2021 » [Article] Lambda development toolbox: Set environment variables locally
• July 6, 2021 » [Article] How authentication and authorization work in AWS

June

• June 29, 2021 » [Article] Why use a single domain for the backend and the frontend
• June 22, 2021 » [Article] Lambda development toolbox: CLI logs watcher
• June 15, 2021 » [Article] How Syncthing provides secure file syncing without sharing your files with a third party
• June 10, 2021 » [Article] Introducing: AWS IAM masterclass video course
• June 8, 2021 » [Article] How to use CloudFront Functions to change the origin request path
• June 1, 2021 » [Article] How to integrate a containerized application with the Elastic Stack

May

• May 25, 2021 » [Article] 9 tips for working with AWS IAM
• May 18, 2021 » [Article] Getting started with the Jest Javascript testing framework
• May 11, 2021 » [Article] What is the await statement in Javascript
• May 4, 2021 » [Article] How to use CloudFront Trusted Key Groups parameter and the trusted_key_group Terraform resource

April

• April 27, 2021 » [Article] 3 genius visual data extraction attacks in Javascript
• April 20, 2021 » [Article] How to implement a persistent file-based cache in Node.Js
• April 13, 2021 » [Article] The async lazy initializer pattern in Javascript
• April 6, 2021 » [Article] AWS architecture icons in an npm package

March

• March 23, 2021 » [Article] How to write a Webpack loader
• March 16, 2021 » [Article] How serverless cold starts change best practices
• March 9, 2021 » [Article] How to keep accurate counts in DynamoDB
• March 2, 2021 » [Article] AWS JS SDK v3 first impressions

February

• February 23, 2021 » [Article] How to fix the profile support in the AWS JS SDK v3
• February 16, 2021 » [Article] How to use cfn-init to set up EC2 instances with CloudFormation
• February 9, 2021 » [Article] EC2 VPC building blocks
• February 2, 2021 » [Article] How to properly implement unique constraints in DynamoDB

January

• January 26, 2021 » [Article] How to convert between callbacks and Promises in Javascript
• January 22, 2021 » [Article] How to speed up Puppeteer scraping with parallelization
• January 19, 2021 » [Article] How to clear a DynamoDB table
• January 15, 2021 » [Article] What is end-to-end encryption and why it's such a confusing term
• January 12, 2021 » [Article] How to use DynamoDB batch write with retrying and exponential backoff
• January 8, 2021 » [Article] How to implement an exponential backoff retry strategy in Javascript
• January 5, 2021 » [Article] How to test with a live domain name for free
• January 1, 2021 » [Article] RxJS: How to make an ordered mergeMap operator

2020

December

• December 29, 2020 » [Article] What is the principle of least privilege and why it's such a hard thing to achieve
• December 25, 2020 » [Article] RxJS: How to use startWith with pairwise
• December 22, 2020 » [Article] RxJS: The differences between first(), take(1), and single()
• December 18, 2020 » [Article] My AWS wishlist
• December 15, 2020 » [Article] Encryption options for S3 objects
• December 11, 2020 » [Article] What is the async disposer pattern in Javascript
• December 8, 2020 » [Article] How Firefox's HTTPS-only mode solves the first insecure request problem
• December 4, 2020 » [Article] How to cache ssm.getParameter calls in a Lambda function
• December 1, 2020 » [Article] How to serialize calls to an async function

November

• November 27, 2020 » [Article] How to use SRI hashes to secure third-party dependencies
• November 24, 2020 » [Article] How to handle timeouts in Lambda functions
• November 20, 2020 » [Article] How to add timeout to a Promise in Javascript
• November 13, 2020 » [Article] Use-cases for IAM roles
• November 10, 2020 » [Article] How to use OpenAPI with API Gateway REST APIs
• November 6, 2020 » [Article] AWS IAM deep dive: How roles work
• November 3, 2020 » [Article] How to use OpenAPI to deploy an API Gateway HTTP API

October

• October 30, 2020 » [Article] How to implement a Lambda backend based on OpenAPI
• October 27, 2020 » [Article] Interactive API documentation using Swagger UI deployed with Terraform
• October 23, 2020 » [Article] How to use a break-glass role for sensitive admin tasks
• October 20, 2020 » [Article] IAM policy evaluation logic explained with examples
• October 16, 2020 » [Article] How to debug CloudFront origin requests
• October 13, 2020 » [Article] AWS IAM deep dive: How the policy evaluation logic works
• October 9, 2020 » [Article] AWS IAM deep dive: How IAM users and groups work
• October 6, 2020 » [Article] Granularity levels in AWS IAM policies
• October 2, 2020 » [Article] The AWS account administrator's guide to MFA

September

• September 25, 2020 » [Article] How CloudFront determines the origin request URL
• September 22, 2020 » [Article] How CloudFront speeds up content delivery
• September 18, 2020 » [Article] How CloudFront routing works
• September 15, 2020 » [Article] How to manage IAM user passwords
• September 11, 2020 » [Article] How to use async/await with postMessage
• September 8, 2020 » [Article] How to use a custom domain with CloudFront and Route53
• September 4, 2020 » [Article] How to use a custom domain on CloudFront with Cloudflare-managed DNS
• September 1, 2020 » [Article] What is CNAME flattening and how it helps redirecting the apex domain

August

• August 28, 2020 » [Article] AWS IAM deep dive: Identity-based, and Resource-based policies
• August 25, 2020 » [Article] How to route to an arbitrary S3 bucket website with Cloudflare Workers
• August 18, 2020 » [Article] How to add HTTPS for an S3 bucket website with Cloudflare
• August 11, 2020 » [Article] How to completely lock down an AWS account with a service control policy (SCP)
• August 4, 2020 » [Article] The consequences of memory allocation size for a Lambda function

July

• July 28, 2020 » [Article] How to use async functions with gapi, the Google Drive client, and the file picker
• July 21, 2020 » [Article] Generating a crossfaded slideshow video from images with ffmpeg and melt
• July 14, 2020 » [Article] Refresh the browser when a text appears on the terminal
• July 7, 2020 » [Article] Tips to debug NodeJS inside Docker

June

• June 30, 2020 » [Article] Testing Bash scripts with the Bats testing framework
• June 23, 2020 » [Article] How to change a blog's permalinks and not lose all organic traffic
• June 16, 2020 » [Article] Are S3 signed URLs secure?
• June 9, 2020 » [Article] Function tests in Bash and the errexit mode
• June 2, 2020 » [Article] How to use the aws_apigatewayv2_api to add an HTTP API to a Lambda function

May

• May 26, 2020 » [Article] What is the optimal password length
• May 19, 2020 » [Article] How to mock in Bash tests
• May 12, 2020 » [Article] Unit testing Bash scripts
• May 5, 2020 » [Article] Avoid excessive costs and save money with S3 storage classes

April

• April 28, 2020 » [Article] How to refactor a Promise chain to async functions
• April 21, 2020 » [Article] Easily run CLI commands as an AWS role with AWSudo
• April 14, 2020 » [Article] Debugging Bash scripts
• April 7, 2020 » [Article] Secure tempfiles in NodeJS without dependencies

March

• March 31, 2020 » [Article] Comparing async Javascript functions and callbacks on AWS Lambda
• March 24, 2020 » [Article] How to use async functions with Array.some and every in Javascript
• March 17, 2020 » [Article] How to Bash and jq: generate statistics for a REST API
• March 10, 2020 » [Article] How to use async functions with Array.filter in Javascript
• March 3, 2020 » [Article] How to use async functions with Array.forEach in Javascript

February

• February 25, 2020 » [Article] How to use async functions with Array.map in Javascript
• February 18, 2020 » [Article] How to use async functions with Array.reduce in Javascript
• February 11, 2020 » [Article] Asynchronous array functions in Javascript
• February 4, 2020 » [Article] How to lazy load and initialize elements using an Intersection Observer

January

• January 28, 2020 » [Article] Automatically schedule emails on MailChimp with RSS and AWS Lambda
• January 21, 2020 » [Article] How to manage Lambda log groups with Terraform
• January 14, 2020 » [Article] Using external libraries in JShell
• January 7, 2020 » [Article] How to solve CORS problems when redirecting to S3 signed URLs

2019

December

• December 31, 2019 » [Article] How to integrate PlantUML into other software
• December 24, 2019 » [Article] Prototyping with JShell
• December 17, 2019 » [Article] How to deploy a single-page application with Terraform
• December 10, 2019 » [Article] How to run a build script with Terraform
• December 3, 2019 » [Article] How to target subscribers in an SNS topic

November

• November 26, 2019 » [Article] How CloudFront solves CORS problems
• November 19, 2019 » [Article] How to setup CORS for Lambda Proxy integration
• November 12, 2019 » [Article] Is Access-Control-Allow-Origin: * insecure?
• November 5, 2019 » [Article] Seamless S3 encryption does not imply better security

October

• October 29, 2019 » [Article] Encryption in the cloud
• October 22, 2019 » [Article] How to reproduce a Lambda function's environment variables locally
• October 15, 2019 » [Article] How to define Lambda code with Terraform
• October 8, 2019 » [Article] Working with structured data in Java
• October 1, 2019 » [Article] How to use Lambda@Edge with Terraform

September

• September 24, 2019 » [Article] How to use API Gateway with CloudFront
• September 17, 2019 » [Article] Magento 2 - Programmatically recreate the missing Catalog Search index table
• September 10, 2019 » [Article] How to route to multiple origins with CloudFront
• September 5, 2019 » [Article] AWS Config notifications with CloudWatch Events

August

• August 27, 2019 » [Article] How to use unique resource names with Terraform
• August 20, 2019 » [Article] How to use the AWS SQS CLI to receive messages
• August 14, 2019 » [Article] Adding continuous rendering to the PlantUML server

July

• July 30, 2019 » [Article] How to paginate the AWS JS SDK using async generators
• July 23, 2019 » [Article] How to clean up Lambda logs
• July 17, 2019 » [Article] Differences between PUT and POST S3 signed URLs
• July 2, 2019 » [Article] How to use S3 POST signed URLs

June

• June 25, 2019 » [Article] How to use S3 PUT signed URLs
• June 18, 2019 » [Article] Limit permissions with roles for signed URLs
• June 11, 2019 » [Article] How to get near-realtime logs for a Terraform-managed Lambda function
• June 4, 2019 » [Article] Cacheable S3 signed URLs

May

• May 28, 2019 » [Article] Why AWS access and secret keys should not be in the codebase
• May 21, 2019 » [Article] Taking notes on a conference with smartphone and Bluetooth keyboard
• May 14, 2019 » [Article] Why a multi-account setup is essential for secure systems
• May 7, 2019 » [Article] CloudFormation CLI workflows

April

• April 30, 2019 » [Article] How to check if your Reserved Instances are used
• April 24, 2019 » [Article] How Service Control Policies help to secure AWS accounts
• April 16, 2019 » [Article] AWS: How to query the available CPU credits for t2/t3 instances
• April 10, 2019 » [Article] AWS: How to limit Lambda and API Gateway scalability
• April 2, 2019 » [Article] AWS: Increase instance security by allowing SSH only from your IP

March

• March 26, 2019 » [Article] AWS: How to get notified on compromised credentials
• March 19, 2019 » [Article] Optimized SPA deployment CloudFormation template
• March 12, 2019 » [Article] How to automate development tasks using NPX
• March 5, 2019 » [Article] Keep costs under control when using t3 instances

February

• February 26, 2019 » [Article] AWS: How to secure access keys with MFA
• February 12, 2019 » [Article] Managing EC2 servers at scale: Ansible and RunCommand
• February 5, 2019 » [Article] AWS: How to get notified on IAM user logins

January

• January 30, 2019 » [Article] AWS: How to get notified on root account login
• January 22, 2019 » [Article] The rocky path to delete an AWS Organizations member account
• January 16, 2019 » [Article] How to use the PhysicalResourceId for CloudFormation Custom Resources
• January 8, 2019 » [Article] Custom resources in CloudFormation templates: Lessons learned
• January 1, 2019 » [Article] How to manage S3 Objects in CloudFormation templates

2018

December

• December 25, 2018 » [Article] How to manage custom CloudFormation resources with Lambda
• December 18, 2018 » [Article] The anatomy of a CloudFormation template with a simple Lambda function
• December 11, 2018 » [Article] Customizable monitoring script on AWS Lambda
• December 4, 2018 » [Article] How to secure different types of CloudFront origins

November

• November 27, 2018 » [Article] How Origin Access Identity works
• November 20, 2018 » [Article] The differences between S3 and CloudFront signed URLs
• November 15, 2018 » [Article] How to use S3 signed URLs with CloudFront
• November 6, 2018 » [Article] How CloudFront signed URLs work

October

• October 30, 2018 » [Article] How S3 Signed URLs work
• October 23, 2018 » [Article] How to handle mixed content with CSP
• October 9, 2018 » [Article] How I failed to implement CSP
• October 2, 2018 » [Article] How to securely check your LastPass vault against the Pwned Passwords database

September

• September 25, 2018 » [Article] How to compare file revisions with fugitive.vim
• September 11, 2018 » [Article] Dive into Git history with fugitive.vim

August

• August 28, 2018 » [Article] Why certificate pinning with HPKP is a bad idea
• August 21, 2018 » [Article] HTTPS security best practices

July

• July 24, 2018 » [Article] How to use Let's Encrypt with Node.js and Express
• July 10, 2018 » [Article] Using Let's Encrypt with Supervisor
• July 3, 2018 » [Article] Supervisor with Docker: Lessons learned

June

• June 26, 2018 » [Article] Let's Encrypt hooks use cases
• June 12, 2018 » [Article] Working with the system clipboard in Vim
• June 5, 2018 » [Article] When to use Let's Encrypt's webroot and standalone authorization

May

• May 29, 2018 » [Article] Let's Encrypt tips
• May 22, 2018 » [Article] Getting started with Let's Encrypt
• May 15, 2018 » [Article] Tips on window management in Vim
• May 8, 2018 » [Article] Use last-position-jump to recover context after reopening a file with Vim

March

• March 27, 2018 » [Article] The need for an additional refactor phase in TDD
• March 20, 2018 » [Article] Two ways of skipping tests in Maven
• March 13, 2018 » [Article] Best practices on how to work with collections in Javascript
• March 6, 2018 » [Article] Dependency Injection Boundaries

February

• February 27, 2018 » [Article] What to expect when you decide to migrate from Javascript to Typescript
• February 20, 2018 » [Article] JUnit and Cucumber test reports based on source code and behavior
• February 8, 2018 » [Article] Introducing: Array#Extras email course
• February 6, 2018 » [Article] Effective debugging with breakpoints

January

• January 2, 2018 » [Article] Reuse code with domain-specific steps in collection pipelines

2017

December

• December 19, 2017 » [Article] The silver bullet of collection pipelines: Functional composition
• December 12, 2017 » [Article] Demystifying chaining in Javascript
• December 5, 2017 » [Article] Where Array#Extras fall short

November

• November 28, 2017 » [Article] Effective print debugging
• November 21, 2017 » [Article] Ditch for loops. Here is a case study to convince you
• November 14, 2017 » [Article] Better collection processing with collection pipelines
• November 7, 2017 » [Article] End-to-end manual verification
• November 6, 2017 » [Article] Listen to your code: Problem-solving techniques in programming

October

• October 31, 2017 » [Article] 2 cases where Babel fixes your code but it shouldn't
• October 3, 2017 » [Article] Generators and ImmutableJS

September

• September 26, 2017 » [Article] Generators in Javascript
• September 19, 2017 » [Article] Use Persistent Undo in Vim for maximum comfort
• September 12, 2017 » [Article] Never lose a change again: Undo branches in Vim
• September 5, 2017 » [Article] Iterables in Javascript

August

• August 29, 2017 » [Article] Iterators in Javascript
• August 22, 2017 » [Article] How to create a good Pull Request
• August 15, 2017 » [Article] Introducing: Weekly JS Tips & Tricks

July

• July 25, 2017 » [Article] 3 ways to set up author information in Git

June

• June 13, 2017 » [Article] How to create a Theme Plugin for Magento

March

• March 1, 2017 » [Article] Profile-based optimization techniques in the JVM

February

• February 7, 2017 » [Article] Why Webpack 2's Tree Shaking is not as effective as you think

January

• January 31, 2017 » [Article] Getting started with Browserify
• January 24, 2017 » [Article] Copy-pasting in Vim without +clipboard
• January 17, 2017 » [Article] JSPM basics and review
• January 10, 2017 » [Article] Managing Scala projects in Vim with Ag and Ctags

2016

December

• December 21, 2016 » [Article] Why Bower is still relevant

November

• November 22, 2016 » [Article] Frontend dependencies without tools
• November 8, 2016 » [Article] 3 Common Cucumber Mistakes You've Probably Made

September

• September 14, 2016 » [Article] One year with Vim

August

• August 24, 2016 » [Article] Lessons learned from using xmonad for a year
• August 9, 2016 » [Article] Parallel Processing in JS

June

• June 28, 2016 » [Article] JVM JIT optimization techniques - part 2
• June 14, 2016 » [Article] Simulating movement with ES6 generators

May

• May 31, 2016 » [Article] Infinite collections with ES6 generators
• May 27, 2016 » [Article] JVM JIT optimization techniques
• May 17, 2016 » [Article] More readable Javascript without variables
• May 10, 2016 » [Article] Fully automated dockerized Let's Encrypt reverse proxy
• May 3, 2016 » [Article] Using Java Generics to express variance of Collections and Functions

April

• April 19, 2016 » [Article] Proper random numbers in Javascript
• April 13, 2016 » [Article] A brief overview of hack.summit() 2016 (part 3)
• April 5, 2016 » [Article] Dealing with async in React

March

• March 29, 2016 » [Article] Detecting errors in the browser with Selenium
• March 22, 2016 » [Article] A brief overview of hack.summit() 2016 (part 2)
• March 8, 2016 » [Article] A brief overview of hack.summit() 2016 (part 1)
• March 1, 2016 » [Article] Getting started with OpenCV for Java on Ubuntu

February

• February 2, 2016 » [Article] The first steps from Grunt to Webpack

January

• January 28, 2016 » [Article] Git to track local history, without a remote
• January 12, 2016 » [Article] Custom CSS animations in React
• January 5, 2016 » [Article] Global listener patterns in React

2015

December

• December 29, 2015 » [Article] Unbroken windows - overengineering in the name of clean code
• December 8, 2015 » [Article] React basics

November

• November 24, 2015 » [Article] A tale of two development competitions
• November 11, 2015 » [Article] 5 Productivity Power Tools for Software Development on Linux
• November 3, 2015 » [Article] Crazy Search Results in Eclipse for Multiple Module Maven Projects

October

• October 27, 2015 » [Article] Walkthrough for a TDD Kata in Eclipse
• October 15, 2015 » [Article] Some thoughts on managing small development teams

September

• September 29, 2015 » [Article] Static HTTP preview server using Docker
• September 17, 2015 » [Article] Automated tests with Eclipse using MoreUnit
• September 1, 2015 » [Article] Revisiting webapp performance on HTTP/2

August

• August 26, 2015 » [Article] Scott: detailed failure reports and hassle free assertions for Java tests
• August 18, 2015 » [Article] A solution to Codility Kalium
• August 4, 2015 » [Article] Isolating scripts on a page

July

• July 28, 2015 » [Article] A simple proxy to circumvent the SOP
• July 21, 2015 » [Article] Calm assertions with Spock

June

• June 23, 2015 » [Article] Historical monitoring on AWS
• June 11, 2015 » [Article] Scala development in Vim

May

• May 26, 2015 » [Article] Accessing Google Drive in Javascript
• May 12, 2015 » [Article] Using Google auth in Javascript

April

• April 28, 2015 » [Article] Animated failure reports with Selenium and Cucumber
• April 14, 2015 » [Article] Deploying Docker images via SSH

March

• March 31, 2015 » [Article] Why you should care about Vim
• March 17, 2015 » [Article] MathJax processing on the server-side
• March 3, 2015 » [Article] Quick and dirty way to build PhantomJS2 from source

February

• February 17, 2015 » [Article] Log review guided by tests
• February 3, 2015 » [Article] Detecting possibly duplicate Strings

January

• January 20, 2015 » [Article] Testing for undesired log output
• January 6, 2015 » [Article] Efficient SQLite backup on Android

2014

December

• December 23, 2014 » [Article] Attached Maven tests with Cucumber
• December 9, 2014 » [Article] Practical measurement of the Android Backup Manager

November

• November 25, 2014 » [Article] Running LP optimisation from Javascript
• November 11, 2014 » [Article] Running LP and IP optimisation from Java

October

• October 28, 2014 » [Article] Plotting charts with SVG
• October 14, 2014 » [Article] Integrating Facebook Comment Count Sum

September

• September 30, 2014 » [Article] Integrating Facebook Comments