A look at JSR 374 - Java API for JSON Processing (JSON-P)
Published: August 29, 2019 • java
In this blog post, we are going to take a loot at the JSON-P (JSR 374) standard for processing JSON in Java.
Published: August 29, 2019 • java
In this blog post, we are going to take a loot at the JSON-P (JSR 374) standard for processing JSON in Java.
Published: August 25, 2019 • javascript, java, spring, ionic4
In this blog post, we are going to see how you can build a password-less authentication system with the FIDO2 WebAuthn standard. I show you a full-stack demo application with an Ionic 4 / Angular front end and a Spring Boot back end and integrate the authentication into Spring Security.
Published: August 13, 2019 • java, javascript
Sending Web Push notifications from a Java back end to a web browser
Published: August 10, 2019 • javascript
A closer look at ky, a JavaScript HTTP client for the browser, built on top of the Fetch API. ky adds convenient functions and new features to the Fetch API.
Published: August 09, 2019 • java
How to use a catch-all SMTP server for development and testing email delivery. In this blog post we are going to look at 6 different catch-all SMTP servers and at a Junit 5 example with an embedded catch-all SMTP server.
Published: August 07, 2019 • java, spring
How to rate limit Spring MVC HTTP endpoints with bucket4j
Published: August 05, 2019 • java
In this blog post we take a look at Hibernate Envers, a library that provides an easy auditing/versioning solution for entity classes
Published: August 04, 2019 • java
In this blog post we take a look at JGit, a pure Java implementation of Git
Published: July 31, 2019 • javascript
In this blog post, we are looking at the Web Workers API. What problem it solves and how can we use it in our JavaScript applications. We take a look at the new Angular 8 build-time support for Web Workers, and lastly, we take a look at Comlink a JavaScript library that simplifies Web Workers programming.
Published: July 30, 2019 • javascript
In this blog post, we are going to develop an Angular/Ionic application that runs Optical character recognition (OCR) in a browser with Tesseract.js. This application does not depend on any server-side code, and the recognition process runs locally in the browser.
Published: July 29, 2019 • javascript
What is the Page Visibility API and how can you access it in web applications. Also a quick look at the visibilityjs library that simplifies commons tasks with the Page Visibility API.
Published: July 17, 2019 • linux
Installing WireGuard, a simple, fast, and modern VPN, on Windows and connect to a WireGuard server.
Published: June 21, 2019 • java, spring, ionic4, javascript
How to add TOTP (Time-based One-Time Password) as the second factor to a traditional Spring Security form login authentication flow.
Published: June 18, 2019 • java
How to encode fixed 4 bytes Java integers into a variable length format that uses less space.
Published: June 13, 2019 • java, javascript, spring, ionic4
How to create a frictionless password auto login experience with the Credential Management API.
Published: June 12, 2019 • java, spring, javascript
How to expose build information, like version number, build timestamp, git commit information, of Spring Boot and Angular applications
Published: June 11, 2019 • java, spring, javascript, ionic4, capacitor
How to take pictures with the Capacitor camera plugin and upload them to a Spring Boot application with Angular's HttpClient and tus.io.
Published: June 11, 2019 • java, javascript, spring, ionic4
How to integrate tus.io implementations into JavaScript and Java applications to create reliable and resumable file uploads over HTTP.
Published: June 10, 2019 • javascript, ionic4
A tutorial on how to use Google Fonts in an Angular / Ionic app. The blog post present two approaches. One approach is by linking to the Google Font server and the second approach shows you how to download Google Fonts and serve them from your web server.
Published: May 15, 2019 • java, spring, ionic4
In this blog post we are going to implement a stateless authentication system with Spring Security, Spring Boot and an Angular/Ionic 4 client
Published: February 15, 2019 • Updated: August 21, 2019 • javascript, ionic4
This blog post shows you how to integrate FontAwesome icons into an Angular application with the official Angular JavaScript library
Published: February 04, 2019 • linux
How to self-host Seafile, an open source file sync and share software, on a VPS with Docker
Published: February 01, 2019 • java
In this blog post we take a look at the capability of Java to monitor directories for changes. A feature that has been introduced a long time ago (2011) in Java 7
Published: January 31, 2019 • java, spring
In this blog post we are going to set up a Spring Boot application with jOOQ and Flyway
Published: January 28, 2019 • java, javascript, spring
Getting started with Cettia, a real-time web framework, and Spring Boot
Published: January 23, 2019 • java
In this blog post, we are going to take a closer look at the new HTTP Client that has been introduced in Java 11.
Published: January 19, 2019 • javascript
A collection of examples with the spread and rest syntax in JavaScript
Published: January 14, 2019 • linux
In this brief tutorial I show you how to install a Docker environment from scratch on Windows 10 Home.
Published: January 10, 2019 • linux
In this blog post I'm going to show you how to make services, installed on a server behind a NAT/Firewall, accessible from everywhere with the Tor network
Published: January 10, 2019 • linux
In this blog post I'm going to show you how to set up a WireGuard VPN between a computer, located behind a NAT/Firewall, and a VPS in the cloud to expose services running on the private server to the Internet and make them accessible from everywhere
Published: January 09, 2019 • java
In this blog post we are going to set up a private root CA with mkcert on our local development machine, create a TLS certificate and enable Spring Boot to use TLS and HTTP/2. We learn how to configure Charles, a HTTP proxy, to trust this private root CA and we also take a brief look at HTTP/2 push.
Published: January 05, 2019 • linux
In this blog post I'm going to show you how to set up a kiosk mode with a full screen Chromium on a NanoPi
Published: January 05, 2019 • pfsense
How to connect a Netgear Aircard to a pfSense router and use it as Internet gateway
Published: January 04, 2019 • javascript, java
How to JSON deserialize and serialize the new JavaScript primitive number type BigInt in a full stack application with Spring Boot
Published: January 04, 2019 • javascript
In this blog post we are going to create two neural networks with brain.js and Tensorflow.js, train the MNIST dataset and use the trained model in a web application to detect digits
Published: January 04, 2019 • javascript
In this blog post we are going to look at tfjs-models (https://github.com/tensorflow/tfjs-models), a collection of pre-trained models with Tensorflow.js that you can simply add and use from your web application