This explains how to convert a standard foreach loop that performs async HTTP calls into a Parallel.ForEachAsync() implementation in .NET 10. While focusing on thread‑safety, correctness, and performance considerations.
May 4th, 2026As part of the GIS Center’s on-going data modernization efforts, we launched our renewed GIS Open Data site at the beginning of 2026.
Sep is a zero-allocation library for parsing CSV files in .NET. Here's how I used it in my ASP.NET Core .NET 9 web app.
October 10th, 2025How I fixed the weak lighting in the trunk of my Toyota Camry by adding LED strip lighting.
June 30th, 2025Have you ever waited impatiently for a critical report to load, only to be met with a timeout? The GIS Center faced this issue with the King County Districts and Development Conditions report, specifically for parcels with multiple Shoreline Management Designations last month.
January 26th, 2025I have a Nikon Z7, last weekend I tried to swap out its memory card for another, but the memory card wouldn’t stay in the slot.
January 13th, 2025I’ve decided that now is the time to modernize the WA Sales Tax Lookup API.
January 2nd, 2025A Parcel Viewer is an interactive map that allows you to find and inspect a specific piece of land.
I have a new .NET 8 web app to release, but before I hit deploy on the pipeline to prod, let’s see what we can do to improve it using Lighthouse as a benchmarking and auditing tool.
June 20th, 2024The biggest improvement is performance. On average it’s more than twice as fast to look up a parcel and in heavy traffic scenarios, it can be nearly instant.
June 6th, 2024King County GIS Center is launching the new Districts and Development Conditions Report (also referred to in short as the Districts Report) application to the public and King County internal staff!
January 19th, 2024Understanding your users is one of the most difficult problems in software development.
January 15th, 2024I noticed an annoying rattle from the rear of the car when music was playing and decided to handle the issue.
Given that ESRI is ending support for ArcGIS Desktop in 2026, the King County GIS Center needed to understand the migration of users from ArcGIS Desktop to ArcGIS Pro.
August 30th, 2023To help our customers solve this issue we decided to make custom backgrounds for all the desk phones we sell and support at Accelerate Networks.
August 21st, 2023I week ago, I switched my internet services provider (ISP) from Xfinity to Astound.
June 15th, 2023Today I woke up early at 7 AM and drove down to the UW Tacoma campus to present at the WAGISA conference.
There are two main advantages to replacing the stock light bulbs with LEDs: improved light output and reduced power consumption.
May 21th, 2022The Road Assets Editor or RAE is a tool that enables employees to review all road assets built in King County.
April 17th, 2022When I deploy my ASP.NET Core 6 app I want it to gather CSV formatted data and ingest it into SQLite as part of its startup process.
January 12th, 2022ArcGIS JS is a JavaScript library for creating web maps using ESRI’s ecosystem of tools and services. Next.js is a framework for building web apps.
An award from an internal hackaton where my team pitched an accounts system for the public that would aggregate all information published by the County on that user.
April 2, 2021By default, the interactive docs in your .NET 6 Web API will be routed to the “/swagger” endpoint if you follow this tutorial.
Compared to the simplicity of deserializing JSON, dealing with XML in dotnet core can be confusing and unintuitive.
June 2nd, 2020By default ASP.NET Core 6 will not expose files with the .geojson file extension in its wwwroot folder.
May 22nd, 2020I host my personal website on Github pages. At Build 2020 I watched a demo of a new service called Azure Static Web Apps.
April 8th, 2020Last week I was inspired by this post from Scott Hanselman to benchmark the performance of an application I developed called Number Search.
March 3rd, 2020On Monday morning just before 11 AM my supervisor walked into my cube. “Hey Tom, did you change anything about the voting precincts query lately?”
Recently I built an ASP.NET Core 3.0 MVC Web app that acts as a front end for a group of APIs that are each supported by a different third-party vendor.
October 10, 2019I recently upgraded an ASP.NET Core 2.2 web app to 3.0. As part of this process I took some time to review the existing code base.
September 1, 2019While scrolling through Twitter a couple weeks ago I saw this map of building ages in the Netherlands.
July 30, 2019I’m in the process of porting a web app from .NET Framework to dotnet core.
May 11, 2019Parcel Details is a monolithic .NET web app written using the now deprecated Web Forms framework that Microsoft introduced in 2002
Feburary 7, 2019The sticky note is my favorite personal management tool. Some consider the sticky note to be an archaic tool. But I love it dearly.
Feburary 7, 2019About 60 percent of its users enter Parcel Details through the search page. The search page calls out to a SOAP service with query and then it’s returned a JSON payload of results.
January 17, 2019Big pushes are being made in major cities across the Northwest to rethink their zoning codes.
January 4, 2019Tax Descriptions are extremely difficult to parse, let alone meaningfully understand, if you're not a surveyor or parcel specialist.
I've been reading a lot of HackerNews the last few months. One of the ideas that I've picked up from reading the comments there has been the idea of creating short feedback loops.
June 17, 2018One of the UX issues I’ve been struggling with is designing my web apps to make their workflow as clear as possible.
June 15, 2018Parcel Details is a public service offered by Kitsap County that allows anyone to look up information on a parcel of land using a tax account, street address, or parcel ID number.