Author: Nic Raboy

Use Fingerprint Authentication In A NativeScript Angular Application

July 17, 2017 Nic Raboy

More than a year ago, before I started using Angular, I had written a tutorial on the topic of fingerprint authentication in a core NativeScript application. Since then, I’m doing almost all of my mobile development with Angular which means that the previous article deserves an upgrade.

I recently released a mobile application called Solar Flare for Cloudflare that protects your account with device level fingerprint authentication. We’re going to see how I included fingerprint authentication, sometimes referred to as touch id, in a NativeScript with Angular application.

Apache Cordova And Ionic Framework Apps Are Not Native Mobile Apps

July 14, 2017 Nic Raboy

If you’ve been keeping up with my content since the birth of The Polyglot Developer, you’ll know that I was once a huge advocate of Apache Cordova development using frameworks like Ionic Framework. Having been a web developer and coming from native Android development with Java, cross-platform development using hybrid technologies seemed like a logical next step. Fast-forward to now, I’m no longer using Apache Cordova with Ionic Framework and have gone back to native development.

I recently came across an article by Ionic’s CEO, Max Lynch, titled, Cordova/Ionic Apps are Native Apps, trying to explain that Ionic applications are native mobile applications. There are some valid points made in this article, but as someone who spent several years using the technology as well as using applications built with the technology, it is not something I agree with as a whole.

Display Local Notifications In A NativeScript Application With Angular

July 10, 2017 Nic Raboy

A while back I wrote a tutorial that demonstrated how to use local notifications in a NativeScript Core project, also referred to as a vanilla NativeScript project. Since writing that tutorial I had received several requests to demonstrate the same in a NativeScript with Angular project.

If you’re unfamiliar, local notifications are scheduled notifications rather than notifications sent from a server. These notifications are useful when you need to trigger reminders in your application or based on events. For example, maybe you develop an iBeacon application and as you approach an iBeacon you want to receive a notification. This type of notification would be a local notification.

We’re going to see how to schedule and display notifications in Android and iOS using NativeScript and Angular.

Simple Login And Registration In A NativeScript With Angular Mobile App

July 5, 2017 Nic Raboy

Most, not all, mobile applications have some sense of users having accounts. This means that users need to register and sign into most mobile applications to get all the features the application has to offer. So how do you create an attractive and functional login and registration screen for your Android and iOS application?

We’re going to see how to create a registration and login screen with NativeScript and Angular that will get you to an end result of a protected page within your application.

Validate Form Submissions In Node.js With Google reCAPTCHA

June 19, 2017 Nic Raboy

Anyone that operates a website or web application with a contact page knows how bad the SPAM problem on the internet is. Spammers, phishers, and other malicious people create bots that will crawl search engines for contact forms and send emails to the hosts, register accounts, or something else. There was a point in time that I was receiving more than ten emails a day from spammers that wanted to redesign my website. This kind of activity is incredibly annoying on my inbox.

This is where CAPTCHA and reCAPTCHA form elements come into play. These elements typically require some interaction such as typing words from an image or solving a math problem. Adding this small amount of form complexity can go a long way towards stopping bots.

We’re going to see how to hook up a Google reCAPTCHA element into a client facing form and validate that element using a Node.js backend.

TPDP Episode #14: Object Storage for Application Developers

June 14, 2017 Nic Raboy

I am pleased to announce that the latest episode of The Polyglot Developer Podcast is now available to download from all the popular podcasting networks. In this episode titled, Object Storage for Application Developers, I’m joined by Krishna Srinivas from Minio to talk about what object storage is and the various solutions that are available.

Episode #14 can be downloaded for free from iTunes, Pocket Casts, and every other popular network, but it can also be heard below.

Handle Google Play Services Conflicts In NativeScript Mobile Applications

June 12, 2017 Nic Raboy

I’ve been developing with NativeScript for a few years now, but only recently have I started working with the various services offered by Google Play. Using a single Google Play service such as Google Analytics works great, but as soon as you start adding more, you’ll start noticing Android conflicts during the build process.

Different plugins have different requirements on the underlying library versions. For example, one plugin might expect version 9, while another version 10, creating a versioning conflict.

We’re going to see how to get around these common problems that expand beyond NativeScript and into other development frameworks such as Apache Cordova and Ionic Framework.