Archive

2020

August

• August 11, 2020 » How to completely lock down an AWS account with a service control policy (SCP)
• August 4, 2020 » The consequences of memory allocation size for a Lambda function

July

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

June

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

May

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

April

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

March

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

February

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

January

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

2019

December

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

November

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

October

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

September

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

August

• August 27, 2019 » How to use unique resource names with Terraform
• August 20, 2019 » How to use the AWS SQS CLI to receive messages
• August 14, 2019 » Adding continuous rendering to the PlantUML server
• August 8, 2019 » New language features since Java 8 to 14

July

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

June

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

May

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

April

• April 30, 2019 » How to check if your Reserved Instances are used
• April 24, 2019 » The first step you should do after opening an AWS account: create a new one
• April 16, 2019 » AWS: How to query the available CPU credits for t2/t3 instances
• April 10, 2019 » AWS: How to limit Lambda and API Gateway scalability
• April 2, 2019 » AWS: Increase instance security by allowing SSH only from your IP

March

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

February

• February 26, 2019 » AWS: How to secure access keys with MFA
• February 19, 2019 » A categorized list of all Java and JVM features since JDK 8 to 14
• February 12, 2019 » Managing EC2 servers at scale: Ansible and RunCommand
• February 5, 2019 » AWS: How to get notified on IAM user logins

January

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

2018

December

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

November

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

October

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

September

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

August

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

July

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

June

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

May

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

March

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

February

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

January

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

2017

December

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

November

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

October

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

September

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

August

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

July

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

June

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

March

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

February

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

January

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

2016

December

• December 21, 2016 » Why Bower is still relevant

November

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

September

• September 14, 2016 » One year with Vim

August

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

June

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

May

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

April

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

March

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

February

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

January

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

2015

December

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

November

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

October

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

September

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

August

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

July

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

June

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

May

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

April

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

March

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

February

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

January

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

2014

December

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

November

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

October

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

September

• September 30, 2014 » Integrating Facebook Comments