Single Sign-On/Sign-Out With SAML 2.0

SAML 2.0 is an authentication protocol, an agreed-upon way to transfer authentication information between parties. It was approved as an OASIS standard in 2005, and there are SAML Protocol Documents with details about the protocol. The protocol is complex (the core document alone is 86 pages) and has a wide range of capabilities. In this post, I’ll scratch […]

A Comprehensive Guide to Fixing Node-Gyp Issues on Windows

node-gyp is a tool that enables the compilation of native add-on modules for Node in multiple platforms. It has widespread use and is included as a dependency in many NPM packages. On most systems, this isn’t an issue, and installing node-gyp with the rest of your packages works as expected. Unfortunately, this is not the case […]

Add Padding to Embedded SVGs for svg-pan-zoom Controls Using JavaScript

A while ago, my current project added support for zooming and panning SVG images. We were able to accomplish this pretty quickly by using the svg-pan-zoom library, which allowed us to easily add UI for pan and zoom controls on top of SVGs. However, after seeing how the control icons appeared over some of our […]

HTML Snapshot Testing with Node

It’s been almost a year since my posts on Excel workbook snapshot testing and PDF snapshot testing. Both of these have proven to be very valuable in our automated test suite and have allowed us to easily catch regressions, manually inspect the differences, and then update as needed. Another task on my current project has […]

Improve Your App with CSS in JavaScript

I’m bootstrapping a web project for the first time in a while, and I was surprised to find that CSS-in-JavaScript libraries are now a thing. Despite my initial surprise, I’ve come to believe it’s actually a great idea.

Collection Operations on Lazy Sequences in TypeScript with itiriri

I’m currently working in TypeScript after spending a lot of time in F#, and I’ve been experimenting with adapting my favored functional approaches to the former.

Generating Excel Files using Node.js and ExcelJS

Recently, I was tasked with writing some code to generate Excel workbooks containing sales data. I implemented the code using a Node module called ExcelJS. I found that this module provides a simple interface to generating documents, and it also supports more advanced functions such as text formatting, borders, formulae, and more.

Using Angular Content Projection to Draw Smiley Faces

When working in Angular, it’s pretty straightforward to create components and nest those components inside of other components. However, it is a bit more complicated to design customizable components that will display content based on the components passed to them (content projection).

Getting Started with AWS Lambda in F#

I recently set out to create my first AWS Lambda function. Of the supported languages, I chose my favorite: F#. In this post, I’ll walk through the process of building a Lambda function in F# and deploying it to AWS. AWS Alphabet Soup Many of Amazon’s web services have famously inscrutable names. After fumbling my […]

Getting Started with WebSockets

WebSockets are a useful tool that allow for two-way communication between a web server and a browser. In this post, I am going to introduce the basics of WebSockets by making a (very) simple chat application using Express, HTML, and vanilla JavaScript.

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