Our website is made possible by displaying online advertisements to our visitors. Please consider supporting us by disabling your ad blocker.

Creating And Using Custom Pipes In An Angular Web Application

April 5, 2017
Nic Raboy

When I’m developing with Angular, I often find myself needing to loop over an object via HTML markup. In AngularJS one could loop over object properties or arrays, but in Angular you can only loop over arrays by default. This is easily fixable through what are known as Angular Pipes.

With pipes you can create display-value transformations for pretty much anything, or in my case transform an object into an array and loop over it. We’re going to see how to create a pipe that will allow us to loop over an object in the HTML layer.

March 31, 2017
Nic Raboy

Over the past few weeks I’ve been doing a lot of investigation into JSON Web Tokens (JWT) for authentication in APIs. If you’ve been keeping up, you’ll remember I wrote about JWT authentication in a Node.js application as well as building a client facing NativeScript and Angular mobile application that made use of the Node.js backend. This is great, but what if you’re not very fond of JavaScript development?

We’re going to see how to create a backend API that creates and validates JSON Web Tokens using the Go programming language. This teach us how to create an API that offers an authentication mechanism outside of sessions and cookies, which typically are not available when working with an API.

March 28, 2017
Nic Raboy

I am pleased to announce that the latest episode of The Polyglot Developer Podcast has been published to all the popular podcasting networks which include, but are not limited to, iTunes and Pocket Casts. In this episode titled, The Go Programming Language and Where it Fits in Modern Development, I am joined by Go advocate, Matt Holt, where we discuss Go as an option to modern development.

In this episode we discuss where Go excels and how it compares to other popular development technologies such as PHP and Node.js.

March 24, 2017
Nic Raboy

When building a web application, not only do you need amazing features, but you also need a stunning user experience and that can often be managed by making good use of UI components. When I’m using my favorite web applications, the way components are displayed on the screen are sometimes what makes the application so memorable. Designers will often animate components to make them stand out.

When building a web application you can use CSS keyframe animations, but if you’re using Angular, there is another way. We’re going to see how to use the Angular Animations component to animate UI components on the screen.

March 18, 2017
Nic Raboy

I’ve been working with Docker for a while now and I’ve found that I’m rarely using one of the vanilla images found on Docker Hub. By rarely, I don’t mean never, but in most cases I find that I’m building my own custom Docker image for any web application that I wish to containerize. This allows me to create an image that meets my needs and deploy it anywhere and anytime that I find necessary.

We’re going to see how to build a simple web application and turn it into a Docker image so it is containerized and easily deployable anywhere that Docker Engine is available.

March 17, 2017
Nic Raboy

So I’ve been working on a project that uses the Go programming language. The application I’m building is a web application that I plan to distribute. The thing is, I don’t want to distribute hundreds of files to make it possible. The application has an API built with Go and the front-end that consumes the API is built with Angular. This lead me searching for a way to bundle all the files into the final binary.

There are several packages that exist for bundling assets into a Golang application. Popular packages include go-bindata, go-bindata-assetfs, and go.rice. I had the most success with go.rice, so we’re going to explore it in this article.

March 10, 2017
Nic Raboy

When it comes to API development, there is often a need to protect certain endpoints or rate-limit the API in general. Because you are working with endpoints from clients possibly on a different domain, you can’t authenticate users with sessions and cookies. It would also be a bad idea to pass around a username and password with each request. Typically endpoints are protected with tokens that are passed with each request and these tokens are often JSON Web Tokens (JWT) that work very well.

We’re going to see how to create a very simple API using Node.js with protected endpoints that require a valid JWT in order for requests to succeed.