Latest Posts
Thinking differently about logarithms
It is always interesting to understand mathematical (or any) concepts when they are explained in simple intuitive ways. – How long will it take to double your investment at a fixed compounding rate of 8%? – What does the natural base e really mean (also known as Euler’s number)?- What does it mean when they…
AWS Load Balancer with R53
This is a 50,000 feet view of how an AWS Application Load Balancer (ALB), an Auto-scaling group (ASG), a Target Group (TGP) and Route53 can work together. ALBs can load balance your HTTP and HTTPS traffic forwarding them to registered targets in the target group evenly based on health check configuration specified in the target…
Preflighted Requests
When accessing a Twitter feed, say to fetch a tweet, via its REST endpoint using Javascript XMLHttpRequest (an axios.get() for example) you would run into this CORS error on the browser: This is of course because your script running on domain a (the desktop) is trying to fetch a resource that resides on domain b (twitter). Unless the responding server explicitly…
Behavior Driven Development
A few hundred sols ago we explored using some type of automated testing to speed up our testing efforts which were largely manual and semi-automated. Turn around times for complete regression testing ranged from days to weeks which was a major impediment to quick release cycles. It was also an exhausting task for our QAs…
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