Protect GraphQL Properties With JWT In A Node.js Application

So you started playing around with GraphQL and Node.js. Did you happen to get up to speed with my previous tutorial titled, Getting Started with GraphQL Development Using Node.js? Regardless on how you’ve jumped into GraphQL, you’re probably at a time where you need to figure out how to protect certain queries or pieces of data from the general public through some kind of permissions or roles.

When building a RESTful API, the common approach to endpoint protection is with JSON web tokens (JWT). In fact, I even wrote a previous tutorial on the subject, but how does that have relevance to GraphQL?

We’re going to take the common JWT approach and apply it towards protecting queries as well as particular pieces of data in a GraphQL API created with Node.js.

Including Attractive Charts In Your Angular Web Application

It’s probably obvious, but most modern applications crave data and in many of those scenarios, being able to visualize the data is a necessity. This is where charting and graphs become valuable within frontend applications. Having attractive charts in your application can make a world of difference and with a convenient library like Chart.js, it isn’t complicated.

If you’ve been keeping up, you’ll remember I wrote a tutorial titled, Use Chart.js to Display Attractive Charts in a Vue.js Web Application which focused on Vue.js. This time around we’re going to see how to include charts in an Angular web application.

Mapping Volumes Or Passing Environment Variables To Containerized Docker Applications

If you’ve ever worked with Docker containers you’ve probably been exposed to them being stateless, meaning when a container is destroyed, all record of it is lost including any files it might have created. Not great if you’re working with say a database, correct? However, let’s look at this from a different angle. Let’s say you are deploying a web application that requires some configuration. Depending on how you’ve developed it, the configuration could be controlled via a file or via environment variables. How do you accommodate this with Docker container deployments when you don’t want these configurations baked into the image?

We’re going to see how to work with volume mapping between container and host machines as well as passing environment variables at container deployment with Docker.

Crack Wireless Passwords Using A Raspberry Pi And Aircrack

Another day and another project with one of the many Raspberry Pi devices that are laying around my house. One of my younger family members came over to try to get inspired for his college future so we decided to work on a project together. We wanted to explore some cybersecurity topics rather than programming which led us to network security.

We decided to try to obtain the password to my wireless network password using the popular Aircrack-ng software. While it didn’t find my password in the end, it doesn’t mean we weren’t successful.

In this tutorial, we’re going to see how to setup Aircrack-ng on a Raspberry Pi to decipher WiFi passwords for WEP and WPA secured networks.

TPDP Episode #19: Automated Software Delivery For Cloud Native Applications

I’m pleased to announce that the latest episode of The Polyglot Developer Podcast titled, Automated Software Delivery for Cloud Native Applications, has been published to all the major podcast networks, including, but not limited to, iTunes and Pocket Casts.

In this episode I’m joined by Jim Clark who is the Chief Architect at a software delivery as a service company called Atomist, where we discuss software delivery and how it can be improved within organizations to make relevant teams within them more efficient.

Getting Started With Capacitor Using React

In February 2018 the Ionic team announced Capacitor. Capacitor allows you to make your frontend builds run everywhere, for example, iOS, Android, Electron and in the browser as a progressive web application (PWA).

Also, Capacitor provides a high-quality API to work with native functions within your apps. For example, you can get access to the camera and it means you still get this access to every platform.

In the official Capacitor documentation you can find a well-described tutorial on how to use Capacitor with Ionic, but in our tutorial, we will check how you can add Capacitor to your existing React app. We will create a simple React app with Capacitor and run it on iOS and in the browser as PWA.

Override The Android Back Button In A NativeScript With Angular Application

Have you ever needed to perform a certain action when the user tries to hit the back button or exit out of your application on Android devices? For example, what if the user was able to back out of your application and you wanted to show a dialog. Or what if you have a video application and you wanted to pause the video when they tap the back button?

Being able to override the functionality of the back button on Android can do great things for your application as long as you don’t abuse it.

We’re going to see how to create a mobile application with NativeScript and Angular that demonstrates overriding the back button on Android, whether that be hardware or software.