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Author: Gavin Rehkemper

Custom Web AppBuilder Widgets in TypeScript

If you’re a JavaScript developer, you may have heard of TypeScript, a typed superset of JavaScript that compiles to plain JavaScript. If you’re also creating custom Web AppBuilder widgets, using TypeScript in a widget is a great way to get started with TypeScript. Here are a few notes and tips that I’ve discovered while using […]

Published Web App

Last week Missouri got a lot of rain, which caused flooding in the Meramec river valley near St. Louis. I received a link to an ArcGIS Image Service that Surdex had created and provided that showed the flooding as of Tuesday 5/2. They flew this imagery as a service to the government and first responders, […]

Open Data in University City

I live in University City, MO, which has no crime. Don’t believe me? This map says so: Open Government The benefits of open government data – crime data being just one aspect of that – is well documented. It allows you and I to take the data the process it, innovate on it, be informed […]

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Gavin Rehkemper

JavaScript, WordPress, and GeoDev