A look at Angular's ngFor directive
Published: 22. January 2017 • Updated: 5. December 2017 • angular, javascript
Published: 22. January 2017 • Updated: 5. December 2017 • angular, javascript
Published: 14. January 2017 • Updated: 1. December 2018 • ionic, spring, java, javascript
Published: 26. January 2017 • Updated: 4. December 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: 13. January 2017 • Updated: 7. December 2018 • ionic, cordova
Published: 4. January 2017 • Updated: 25. October 2017 • javascript
Published: 24. January 2017 • Updated: 16. February 2018 • spring, java
How to create RSS and Atom feeds with the Spring Framework and the ROME library
Published: 8. January 2017 • Updated: 23. December 2017 • java, spring
Published: 20. January 2017 • Updated: 19. June 2017 • database, javascript
Published: 22. February 2017 • Updated: 29. September 2018 • ionic, javascript
In this post, we look at a way to display charts from the ECharts library in an Ionic app
Published: 5. February 2017 • Updated: 7. December 2018 • ionic, spring, java, javascript
How to implement a JWT authentication system with Ionic/Angular and Spring Boot.
Published: 27. February 2017 • Updated: 29. November 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: 18. February 2017 • Updated: 6. December 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: 26. February 2017 • Updated: 31. March 2020 • ionic, spring, javascript, java
This post describes how a Spring Boot can send messages over FCM to an Ionic / Cordova app
Published: 15. February 2017 • Updated: 16. February 2018 • java, s3
In this article, we take a closer look at Minio, a self-hosted S3 compatible server, and how to connect a Java application to it.
Published: 16. February 2017 • Updated: 6. December 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: 12. February 2017 • Updated: 6. December 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: 5. March 2017 • Updated: 16. February 2018 • java, spring
What are Server-Sent Events and how can you send them from a Spring Boot application
Published: 12. September 2017 • Updated: 30. October 2017 • database, javascript
IndexedDB, the database in the browser. How does it work and what can you do with it.
Published: 25. September 2017 • Updated: 4. December 2018 • javascript, cryptography, ionic
Creating a trivial password manager with the Web Cryptography API and the Ionic framework.
Published: 16. September 2017 • Updated: 25. October 2017 • java
How to create a simple MultiValue Map with Java 8
Published: 15. September 2017 • Updated: 3. December 2018 • database, javascript, ionic
Example of an Ionic web application that stores data in an IndexedDB and works offline.
Published: 17. September 2017 • Updated: 16. February 2018 • java
How to use pluggable file systems in Java and a look at implementations outside the standard library
Published: 21. September 2017 • Updated: 4. December 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: 26. September 2017 • Updated: 4. December 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: 7. November 2017 • Updated: 5. December 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: 5. November 2017 • Updated: 3. December 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: 18. December 2017 • Updated: 16. July 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.