Kaushik Gopal's Website

This blog now 1 uses Jekyll - a static blog generator that takes markdown as an input and pumps html as output.

Update I’ve since come up with an easier way to maintain my rules.

Inspired by some well known architecture patterns like MVVM/MVI, I set out to come up with an agnostic set of principles that would help developers build features in their app in a robust, safe and (importantly) “testable” way.

This whole piece is such a biograpy treasure trove and one I’m filing under the “come back and read in a year” category.

I use a 13" MacBook Pro at work these days.

The TestObserver is an RxJava staple for testing.

I’ve been dipping my toes into some iOS development recently.

This super intesting stack overflow answer explains why -in programming- if you have a sorted array, somehow magically it can seem like it’s easier to process each element vs processing the same array if it were unsorted. tl;dr - branch prediction With a…

Sometime back I ran across a thread where folks talked about this programming style called “Space Shuttle style” that the Kubernetes codebase followed. // ================================================================== // PLEASE DO NOT ATTEMPT TO SIMPL…

This is a fantastic post by Erik where he explains the nuance between IO-bound and CPU-bound operations in programming. … libraries have dedicated APIs for I/O scheduling work, separate from other types of operations …. but why is this the case?

A not so well known api in RxJava is the .hide() operator.

The Japanese can chalk this up to their creative laurels along with: the Fujifilm X100S the Sony walkmans and one of my favorite Anime.

This feature is beneficial for projects defining custom source sets, since the compilation of independent source sets can be parallelized.

So i’ve been doing these kinds of posts for sometime now.

Learn how to go to your existing old mobile app and refactor it into one with a powerful architecture.

We recently held our semi-annual hackathon at Instacart - the Carrot Wars 2018!

Discover how to break down the barrier between your hopes for a mobile CI/CD system and what’s available today using the powerful Azure toolset and App Center API’s.

This is such a fantastic post on how Apple sweats certain almost unnoticeable design details.

Checkout this quick blog post I wrote for my company, tweaking the existing Kotlin TODO to work towards our requirements.

I’m obsessed with typefaces and fonts .1 My programming productivity is irrationally dependent on the font I pick for my IDE.

We need more kindness and positivity in our online lives today.

The Android development community today has embraced Rx(Java) in all it’s glory.

In case you haven’t heard: RxJava2 was released sometime back.

2 part series This is a continuation post in a 2 part series: Understanding the changes Disposing subscriptions Disposing Subscriptions # This was the part that I initially found most tricky to grasp but also most important to know as an AndroidDev (memory

One of the advantages of working in the Bay area is you tend to run in to tech celebrities every so often.

I know it’s almost the end of January but I like to take my time with these posts.

We recently did an overhaul for Instacart’s shopper app and committed to using a presenter pattern for this.

This is a revised version of a talk I first gave in 2015.

I finished 2014 not having the slightest clue what would be in store. 2015 was a rollercoaster: I started a new podcast Fragmented (with my cohost and now friend Donn Felker), bought my childhood dream car (a Mini Cooper), got a new job (Wedding Party was…

What if you could get your UI tests to run as fast as your unit tests?

A common question most android developers have when using RxJava is: how do I cache or persist the work done by my observables over a configuration change?

So RxJava is this new kid on the block.

when Billy Joel was on the Jimmy Falon show and they used the iPad app “Looper”, i immediately looked for the android equivalent. there wasn’t one. i’m an android developer and a sound engineer (enthusiast) so obviously the right thing to do, was build on…

hear ye, hear ye!

i spent a huge part of my 2014 on “Rx” (or reactive extensions) which is essentially a library that helps with a development pattern called “reactive programming”. i think Rx is going to be huge in the app development world. it’s already picked up a lot of

Ok, so in my previous post I innocuously introduced the .share() operator.

i listen to a tonne of podcasts. i find activities such as doing my laundry, driving back home from work, doing the dishes … all delightful because it gives me a chance to strap on some headphones and listen to a bunch of podcasts. in the time that i run…

This is a bonus RxJava post that I landed up writing along with my previous post on creating an event bus with RxJava.

i love the holidays. i especially love the new year’s though cause it’s an acceptable time to hit that big-nice-red reset button. stuff I wanted to get done in 2013/2014 ## get back in shape (significant progress on this front) get more sleep (been getting

This post has three parts: quick primer on what an event bus is implementing the event bus with RxJava parting thoughts on this approach “RxBus” is not going to be a library.

I’ve read and watched a lot on Rx.

Mobile devices are getting pretty fast, but they aren’t infinitely fast yet.

The title was just to grab your attention.

For All Our Failings, Despite Our Limitations and Fallibilities, We Humans Are Capable of Greatness… Carl Sagan

This is by far the funniest stuff I’ve read this year.

There’s something innately comforting about coding.

My last post didn’t exactly end in an optimistic note.

Apple released a new iPad ad during the Olympics.

i would give my savings away for something like this.