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LRU Cache Using Go in under 100 lines!

Vague introduction to LRU Caches Hello fellow internet user! I assume you know what caches are and how they work. Today let’s see how we can design an LRU cache using our favourite language Go wit...

Channels and Deadlocks in Go with a File crawler

Welcome back! We’ve seen in the earlier sections that channels can be used to improve and control concurrency in Golang. But let’s look at it again with a fresh mind. Let’s unlearn things a...

Testing Cobra Subcommands

Just an Intro Go has been around for more than 10 years now. Recently more than a dozen tools and frameworks have come out making us create CLI apps easily than ever. Out of those countless tools,...

Using Go Channels - Part 4 - Image Processing with Channels - Part 2

A Tiny Recap In the earlier section Part - 4, we have seen the serial and parallel versions of our image processing program. Now let us see if we can make our parallel version even better. ...

Using Go Channels - Part 4 - Image Processing with Channels

A Tiny Recap In the earlier section Part - 3 , we have learnt: What read and write specific channels are How we use select in the context of goroutines Finally, how we apply timeouts in se...

Using Go Channels - Part 3 - Read/Write Channels & Select

A Tiny recap In the earlier section Part -2 , we have learnt: What buffered channels are Reading and writing to a buffered channel Communicating with goroutines with buffered channels Ha...

Using Go Channels - Part 2 - Buffered Channels

A Tiny Recap In the earlier section Part -1 , we have learnt: What channels are How we initialize them How we read from and write into a channel How we make goroutines communicate with c...

Using Go Channels - Part 1 - Introduction to Channels

Introduction We know that Goroutines are independently executing user space threads. Imagine an office workspace where ten employees are working towards a customer satisfying goal. These ten empl...

How I learnt Go Interfaces

Intro It is a general phenomenon among humans (I mean our brain) to not notice things which are similar. You might understand this article better if you start looking at things a different way. I...

Running schema migrations on Heroku

This is a quick article on how schema migrations are run beforing deploying your Go application(or any another app) on Heroku. I’ve myself faced some problems due to lack of proper documentation wi...