Category: General Development

Encrypt And Decrypt Data In A Golang Application With The Crypto Packages

February 19, 2018 Nic Raboy

Being able to encrypt and decrypt data within an application is very useful for a lot of circumstances. Let's not confuse encryption and decryption with hashing like that found in a bcrypt library, where a hash is only meant to transform data in one direction.

Not too long ago I wrote about in a previous article how to encrypt and decrypt data using Node.js. This was partially inspired by me learning how to build software wallets for cryptocurrencies and encrypting the sensitive information. However, what if we wanted to use Go instead of Node.js?

We're going to take a look at encrypting data and then decrypting it within a Go application by using the already available crypto packages.

TPDP Episode #16: Job Hunting As A Software Engineer

January 30, 2018 Brenda itReverie

Job hunting can be one of the most time and energy consuming tasks we have to do. Unfortunately there isn't a perfect formula but some tips could definitely help to alleviate the process or at least know that you are not alone.

In the following article I will try to provide you with some tips and tricks when applying and preparing for a job interview as a Software Engineer. There is a lot of information on the web but I will try to sum up the areas you should be focusing on and point you to some helpful websites.

Encrypt And Decrypt Data In Node.js With The Crypto Library

January 22, 2018 Nic Raboy

As you've probably noticed from the previous few articles, I've been doing a lot of development around cryptocurrency wallets using Node.js. Up until now, I've only been writing about interacting with different currencies. However, I haven't discussed how to safely store your wallet information.

When it comes to storing anything sensitive, whether it be cryptocurrency secrets or something else, you must do so safely and securely. For example, the data must be encrypted at rest and decrypted when used.

We're going to see how to encrypt data with a passphrase using Node.js and decrypt it using that same passphrase when necessary.

Consume Remote API Data From Within A Node.js Application

October 9, 2017 Nic Raboy

Not too long I wrote about consuming remote API data using Golang. However, as you know, I'm also a heavy Node.js developer as well. So how do we issue HTTP requests from within a Node.js application and why might you want to. The simple answer is that you might want to consume someone else's data within your web application and you can't just do that like you would in a browser-based application using Ajax or similar.

We're going to see how to make HTTP requests possible within Node.js.

Getting Familiar with Gulp for Workflow Automation

September 7, 2017 Nic Raboy

I've been developing web applications for as long as I can remember and there are certain repetitive tasks that I do between the development and deployment of each final product. For example, current web standards demand that web resources like CSS, and JavaScript be minified or images be compressed. We could easily do this by hand or with helper applications, but why would you want to?

Instead, repetitive tasks can, and should, be transformed into an automated workflow, something that is particularly useful when it comes to continuous integration and continuous deployment.

We're going to see how to create a an automated workflow using the Gulp toolkit to do simple tasks like cleaning, minification, copying, altering, and even deploying projects.

Unit Testing a Node.js Application with the Jasmine Testing Framework

August 24, 2017 Nic Raboy

When building an application, regardless if it is mobile, web, or neither, it is a good idea to come up with a collection of tests that can be used in a continuous integration scenario. I must admit, I don’t have the best habits when it comes to writing tests, but I’m sure my applications would be significantly better if I did.

Previously I had written about unit testing in Golang as well as unit testing in NativeScript with Angular. This time around it makes sense to talk about writing tests in Node.js, another technology that I have in my tool belt.

Consume RESTful API Endpoints Within A Golang Application

July 24, 2017 Nic Raboy

I am a huge fan of the Go programming language and have written a decent amount of material on the subject. For example, a popular tutorial I wrote titled, Create a Simple RESTful API with Golang, focuses on developing an API. However, I recently received questions on the subject of consuming data from other APIs from within a Go application.

We’re going to see how to issue HTTP requests from within Go, in an effort to consume or send data to other RESTful APIs that might exist on the internet.