Development Category
Build ElectronJS apps for Rasberry Pi
Posted on January 10, 2022 Leave a Comment
ElectronJS allows you to more or less build a web application that can be distributed as a native application. The code is written in javascript and uses standard HTML and CSS for the presentation layer. The code is packaged with a chromium browser and distributed as an application. Can you really build powerful applications this […]
Unit test your Firestore security rules
Posted on December 10, 2021 Leave a Comment
When developing a Firebase app with a Firestore database layer a lot of tutorials suggest allowing all traffic while developing and then setting the rules. I always do the other way around, I keep the default deny all rule and then open up for each use case I have. When writing security rules it’s very […]
Export Firestore to dev environment
Posted on October 20, 2021 Leave a Comment
Sooner or later you need production data in your development environment to test or develop a more rich UI experience based on real life data. There are a few ways of doing this, but this is the easiest especially if your on a windows machine. You probably already have a persistent data in your dev […]
GCB Firebase deploy error
Posted on October 20, 2020 Leave a Comment
Using Google Cloud Build to build and deploy your frontend NodeJS application is well documented in Building Node.js applications and Deploying to Firebase. How ever all these, or at least a majority of them, are based on Linux based development systems. If your on a windows machine you can run into a very specific problem […]
Install Protocol Buffers (protobuf) on Windows
Posted on May 17, 2020 Leave a Comment
I’m currently converting a few Google App Engine projects from Python 2.7 to Python 3. This includes a bunch of changes to the the code since Google is moving away from the built in Google App Engine classes. During the first few steps of converting the app you start changing out the dependencies still on […]
reCAPTCHA v2 vs reCAPTCHA v3
Posted on February 24, 2020 Leave a Comment
CAPTCHA was first invented in 1997 to distinguish a human from a bot performing an action. Back in the day captchas were usually obscured or deformed letters. Before that, we had the simple question verification like “what is 1 + 9” which is simple enough once the bot scrapes it off the page. In 2007 […]
Google Cloud Functions local testing – auto releod
Posted on February 3, 2020 Leave a Comment
Cloud Functions is Google Cloud’s event-driven serverless compute platform. Run your code locally or in the cloud without having to provision servers. Go from code to deploy with continuous delivery and monitoring tools. Cloud Functions scales up or down, so you pay only for compute resources you use. Easily create end-to-end complex development scenarios by […]
Multiple ReCaptcha on the same page
Posted on May 20, 2018 Leave a Comment
Been trying to use multiple Google reCAPTCHAs on the same page with mixed success. Reason for doing this is for example a login page with a reCAPTHCA for the login form and a modal opening with a reset password form. I prefer to use the “invisible” reCAPTCHA since it gives a cleaner look. To be […]
Powershell: IIS Application Pool Killer
Posted on January 8, 2018 Leave a Comment
Every now and then IIS application pools lock up and needs to be killed. You can add the field PID in Task Manager and then use cmd tools to find which one of the IIS Worker Process is the right one and kill it. I created a simple script that lists all the IIS Application […]
AngularJS: Drag & Drop
Posted on August 23, 2016 Leave a Comment
Implementing drag and drop in AngularJS is pretty straight forward using directives. This also makes the code re-usable throughout your app and/or other projects as well. As always there is a few fays of accomplishing this and the number of plugins available are many. If the plugins doesn’t perform what you need you can easily […]
Hackviking aka Kristofer Källsbo 