Published: December 18, 2017 • Updated: July 16, 2019 • ionic4, javascript, java, spring
In this blog post I present three different way how to integrate a speech recognition functionality into an Ionic 4 app. With a Cordova plugin, the Web Speech API and with RecordRTC and the Google Cloud Speech API.
Published: December 17, 2017 • Updated: April 17, 2018 • ionic3, pwa
How to integrate the service worker library Workbox into an Ionic 3 app with lazy loaded modules
Published: November 07, 2017 • Updated: December 05, 2018 • ionic4, java, spring, javascript
In this blog post we create a self hosted location tracker that consists of three parts. An Ionic 4/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 a Google Maps.
Published: November 05, 2017 • Updated: April 22, 2018 • pwa, ionic3, javascript
Creating Service Workers with Workbox for Ionic 3 applications
Published: November 05, 2017 • Updated: December 03, 2018 • ionic4, java, spring, javascript
In this blog post we create an Ionic 4 app that dynamically requests location data points from a Spring Boot server and displays them on a 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: October 21, 2017 • Updated: January 17, 2018 • java
The latest Java update changed the way how you enable unlimited cryptography in your Java application.
Published: September 26, 2017 • Updated: December 04, 2018 • java, ionic4, 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, ionic4
Creating a trivial password manager with the Web Cryptography API and the Ionic 4 framework.
Published: September 21, 2017 • Updated: December 04, 2018 • spring, java, javascript, ionic4
In this blog we create REST services in Spring Boot and consume them in an Ionic 4 app. We use the OpenAPI specification for generating an API documentation and the client TypeScript code.
Published: September 17, 2017 • Updated: February 16, 2018 • java
How to use pluggable file systems in Java and a look at implementations outside the standard library
Published: September 16, 2017 • Updated: October 25, 2017 • java
How to create a simple MultiValue Map with Java 8
Published: September 15, 2017 • Updated: December 03, 2018 • database, javascript, ionic4
Example of an Ionic 4 web application that stores data in an IndexedDB and works offline.
Published: September 12, 2017 • Updated: October 30, 2017 • database, javascript
IndexedDB, the database in the browser. How does it work and what can you do with it.
Published: March 05, 2017 • Updated: February 16, 2018 • java, spring
What are Server-Sent Events and how can you send them from a Spring Boot application
Published: February 27, 2017 • Updated: November 29, 2018 • database, ionic4, javascript
A short introduction to Lovefield, a JavaScript SQL database engine. And how to build an Ionic 4 app that uses Lovefield as database access layer.
Published: February 26, 2017 • Updated: December 06, 2018 • ionic4, spring, javascript, java
This post describes how a Spring Boot can send messages over FCM to an Ionic 4 / Cordova app
Published: February 22, 2017 • Updated: September 29, 2018 • ionic4, javascript
In this post we look at a way to display charts from the ECharts library in an Ionic 4 app
Published: February 18, 2017 • Updated: December 06, 2018 • ionic4, cryptography
In this post we create a Todo application with Ionic 4 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 • ionic4, cordova, spring, s3, javascript, java
How to upload files from an Ionic 4 / Cordova app directly to a Minio server or Amazon S3 with pre-signed URLs.
Published: February 15, 2017 • Updated: February 16, 2018 • java, s3
In this article we have a closer look at Minio, a self hosted S3 compatible server, and how to connect a Java application to it.
Published: February 12, 2017 • Updated: December 06, 2018 • ionic4, cordova, spring, javascript, java
In this article we create an Ionic 4 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 • ionic4, spring, java, javascript
How to implement a JWT authentication between an Ionic 4 app and a Spring Boot back end.
Published: January 26, 2017 • Updated: December 04, 2018 • angular, ionic4, spring, java, javascript
Example of form validation in an Ionic 4 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 24, 2017 • Updated: February 16, 2018 • spring, java
How to create RSS and Atom feeds with the Spring Framework and the ROME library
Published: January 22, 2017 • Updated: December 05, 2017 • angular, javascript
Published: January 20, 2017 • Updated: June 19, 2017 • database, javascript
Published: January 18, 2017 • Updated: May 18, 2017 • ionic3, cordova
Published: January 16, 2017 • Updated: December 07, 2017 • ionic4, cordova
Published: January 14, 2017 • Updated: December 01, 2018 • ionic4, spring, java, javascript
Published: January 13, 2017 • Updated: December 07, 2018 • ionic4, cordova
Published: January 08, 2017 • Updated: December 23, 2017 • java, spring
Published: January 04, 2017 • extjs
Published: January 04, 2017 • Updated: October 25, 2017 • javascript