Published: August 25, 2019 • javascript, java, spring, ionic
In this blog post, we are going to build a password-less authentication system with the FIDO2 WebAuthn standard. I show you a full-stack demo application with an Ionic / Angular front end and a Spring Boot back end with Spring Security.
Published: June 21, 2019 • java, spring, ionic, 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 13, 2019 • java, javascript, spring, ionic
How to create a frictionless password auto-login experience with the Credential Management API.
Published: June 11, 2019 • java, spring, javascript, ionic, 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, ionic
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, ionic
A tutorial on how to use Google Fonts in an Angular / Ionic app. The blog post presents 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, ionic
In this blog post we are going to implement a stateless authentication system with Spring Security, Spring Boot and an Angular/Ionic client
Published: February 15, 2019 • Updated: August 21, 2019 • javascript, ionic
This blog post shows you how to integrate FontAwesome icons into an Angular application with the official Angular JavaScript library
Published: December 11, 2018 • java, spring, ionic, javascript
This blog post shows you a way to upload pictures from a web application to Google Cloud Storage and run them through Google Cloud Vision. The application uses Ionic for the front end and Spring Boot for the back end. It utilizes signed URLs for permitting the client to upload pictures directly from the web application to Google Cloud Storage
Published: December 09, 2018 • pwa, javascript, ionic
In this blog post, we look at a way to use the Background Sync API together with Angular's service worker. Or, in general, how to add custom service worker code to a generated Angular service worker.
Published: June 26, 2018 • pwa, javascript, java, spring, ionic
This blog post takes a closer look at the Background Sync API, part of the Service Worker implementation and presents an example that uses Background Sync to synchronize data between an Ionic web application and a Spring Boot server application.
Published: January 12, 2018 • Updated: December 03, 2018 • database, javascript, ionic
In this blog post I present a way to use Dexie in a TypeScript application
Published: January 06, 2018 • Updated: December 01, 2018 • ionic3, ionic, javascript
How to use arbitrary SVG icons in Ionic 3 and Ionic 4/5
Published: December 18, 2017 • Updated: July 16, 2019 • ionic, javascript, java, spring
In this blog post I present three different way how to integrate a speech recognition functionality into an Ionic app. With a Cordova plugin, the Web Speech API and with RecordRTC and the Google Cloud Speech API.
Published: November 07, 2017 • Updated: December 05, 2018 • ionic, java, spring, javascript
In this blog post, we create a self-hosted location tracker that consists of three parts. An Ionic/Cordova application that continuously sends the current location to a Spring Boot application from where the locations are broadcasted to a website and visualized on Google Maps.
Published: November 05, 2017 • Updated: December 03, 2018 • ionic, java, spring, javascript
In this blog post we create an Ionic app that dynamically requests location data points from a Spring Boot server and displays them on an OpenStreetMap map. The data points are stored in a MongoDB database, and we take advantage of the geospatial query support to read the data points only for a certain area.
Published: September 26, 2017 • Updated: December 04, 2018 • java, ionic, javascript, spring
A closer look at the Flow.js JavaScript library that helps upload files from a browser to the server. Flow.js is a JavaScript library providing multiple simultaneous, stable, fault-tolerant, and resumable/restartable file uploads via the HTML5 File API.
Published: September 25, 2017 • Updated: December 04, 2018 • javascript, cryptography, ionic
Creating a trivial password manager with the Web Cryptography API and the Ionic framework.
Published: September 21, 2017 • Updated: December 04, 2018 • spring, java, javascript, ionic
In this blog, we create REST services in Spring Boot and consume them in an Ionic app. We use the OpenAPI specification for generating API documentation and the client TypeScript code.
Published: September 15, 2017 • Updated: December 03, 2018 • database, javascript, ionic
Example of an Ionic web application that stores data in an IndexedDB and works offline.
Published: February 27, 2017 • Updated: November 29, 2018 • database, ionic, javascript
A short introduction to Lovefield, a JavaScript SQL database engine. And how to build an Ionic app that uses Lovefield as database access layer.
Published: February 26, 2017 • Updated: December 06, 2018 • ionic, spring, javascript, java
This post describes how a Spring Boot can send messages over FCM to an Ionic / Cordova app
Published: February 22, 2017 • Updated: September 29, 2018 • ionic, javascript
In this post, we look at a way to display charts from the ECharts library in an Ionic app
Published: February 18, 2017 • Updated: December 06, 2018 • ionic, cryptography
In this post, we create a Todo application with Ionic that stores the data encrypted in the client storage. asmcrypto.js is used as the cryptographic library and we have a look at the Web Crypto API
Published: February 16, 2017 • Updated: December 06, 2018 • ionic, cordova, spring, s3, javascript, java
How to upload files from an Ionic / Cordova app directly to a Minio server or Amazon S3 with pre-signed URLs.
Published: February 12, 2017 • Updated: December 06, 2018 • ionic, cordova, spring, javascript, java
In this article, we create an Ionic application where the user can take a picture, and the app uploads it to a Spring Boot application.
Published: February 05, 2017 • Updated: December 07, 2018 • ionic, spring, java, javascript
How to implement a JWT authentication system with Ionic/Angular and Spring Boot.
Published: January 26, 2017 • Updated: December 04, 2018 • angular, ionic, spring, java, javascript
Example of form validation in an Ionic application. How to create custom synchronous and asynchronous validators and how to validate data on the server with the Java Bean Validation framework.
Published: January 16, 2017 • Updated: December 07, 2017 • ionic, cordova
Published: January 14, 2017 • Updated: December 01, 2018 • ionic, spring, java, javascript
Published: January 13, 2017 • Updated: December 07, 2018 • ionic, cordova