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Author: derek.pfister

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Mulesoft Process, System, and Experience APIs

  • derek.pfister
  • December 30, 2021June 15, 2023

Mulesoft is a core technology in many leading organizations. When designing a mule API,  one of the first things an engineer must do is decide what type of Mule API…

  • Pitfalls
  • Programming

IP Exhaustion inside VPC

  • derek.pfister
  • October 6, 2021October 6, 2021

Many organizations set up VPC in the cloud for security. When you set up the VPC, there are only limited number of IP addresses based on the CIDR range defined…

  • Programming

AWS Step Functions as Cloud Batch Scripts

  • derek.pfister
  • May 20, 2021May 20, 2021

AWS Step functions are a very powerful tool that can help any team leverage AWS. When the AWS team developed step functions, they were really trying to replicate a way…

  • Pitfalls
  • Programming

Challenges with AWS Security Using VPC

  • derek.pfister
  • February 9, 2021February 9, 2021

A common scenario in cloud computing is an AWS serverless lambda function reading or writing from a serverless storage, namely S3. If you are using a lambda to connect to…

  • Programming

Terraform for Multi-Cloud, Multi-Environment Development

  • derek.pfister
  • January 28, 2021January 28, 2021

Terraform is a fantastic infrastructure as code tool that is cloud agnostic. Cloud-agnostic means that much of the same terraform scripts can be run on AWS cloud as well as…

  • Programming

Benefits of a Microservice Implementation – Concrete Example

  • derek.pfister
  • June 11, 2020June 11, 2020

In designing a service, there is often a question of how many methods and how granular you want to go.  There is a risk of making the interface too complex,…

  • Programming

Aysnc Await

  • derek.pfister
  • April 3, 2020April 3, 2020

The async/await operators have been around for some time (since C# 5.0, introduced in 2012) and have been of substantial use. A question about their use arises however: Why aren’t…

  • Programming

Application Insights

  • derek.pfister
  • March 2, 2020April 3, 2020

Recently I have been working a lot with Microsoft Application Insights. As a tool for application logging, I have found it to be very robust. The KQL language, while slightly…

  • Programming

Welcome to Derek’s Blog 2.0!

  • derek.pfister
  • February 19, 2020May 20, 2021

I have decided to switch hosting providers and start my blog fresh. I hope you like the WordPress theme I choose. Yes, I have gone back to WordPress from MediaWiki….

  • Programming

Heinous Ransomware Attack

  • derek.pfister
  • November 13, 2019April 3, 2020

On Saturday, November 10th, 2019, my hosting provider was the victim of an atrocious ransomware attack. It took me until today, Wednesday November 13th, to get my blog back up…

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