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Emulating a Redis Failover with Docker

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Reading the Redis documentation can be a bit confusing without the hands-on experience. You could in theory create multiple processes of the Redis Server on your machine and configure each of them in part, but what if you could do it in a few commands? Not only that but...

should your online business use API?

Why Should Your Online Business Offer API

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There are several ways to extend a business model but API is a hot topic right now as the online world is expanding very fast. If you’re a developer or at least interacted with APIs before, you probably know why public APIs are so important, but there’s a big...

Counting lines and words using Go

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For those who need to count words and lines in text files, an easy approach for this matter is to use bufio.ScanWords and bufio.ScanLine in order to quickly solve the problem. To count words: ScanWords is a split function for a Scanner that returns each space-separated (checks unicode.IsSpace)...

Go debugging

Debugging Golang apps in Docker with Visual Studio Code

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Context We’ve recently had some problems with a Go application that was running inside a Docker container in a very big Docker Compose setup. After getting fed up with writing console prints and rebuilding the Docker image for that container and spinning up all the containers to debug things,...

ruby useful gems

Start writing tests in Ruby: useful gems

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Being a QA engineer is a continuous struggle in finding the right resources in order to get the job done easier and more efficiently. If you are planning to write automated tests in RSpec (Ruby’s testing framework), then you should take a look over these gems. Please notice that I am most...

Face Detector using OpenCV and C

Build a Face Detector on OS X Using OpenCV and C++

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Building and using C++ libraries can be a daunting task, even more so for big libraries like OpenCV. This article should get you started with a minimal build of OpenCV and a sample application written in C++. This application will get images from the webcam, draw rectangles around the...

An Introduction to Artificial Intelligence: Facts and Fallacies

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One way or another, we all heard of Artificial Intelligence. It’s been there since we were born and it will surely outlive us. It’s a promise of a Utopian future and could be a harbinger of our own demise. It could help us end poverty, disease and pollution or it...

How to Overwrite the OS on an Ecrypted Machine

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I’ve recently come across a situation where I had an encrypted Samsung laptop that needed a reimage. The previous owner had encrypted the HDD so that no one who would find /steal the laptop could access the data from it, which made it difficult to even boot from the...

10 Ways to Get the Best out of Customer Support

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  Customer support has been designed to be a link between the customer and the product. Now, even though we may be super smart and figure out almost everything on our own, there may come a day when customer support is needed. Here are 10 things to keep in mind...

Who Really Invented the Internet?

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While some see it as one of the greatest evolutionary steps in the history of mankind, most of us still use it for cat videos and annoying status updates. Nonetheless, the Internet has clearly taken over our lives, being directly present in our homes, our pockets, our workplace and soon...

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