Guru on Rails

if you don’t sacrifice for your dream then your dream becomes your sacrifice.
Sydney, Sat 01 Jun 2019
Sun 17 Feb 2019


This guideline for MAC OS. 1. Installation Installing: Rabbitmq 3.7.9 Redis Ruby 2.5.1 Rabbitmq...

Mon 24 Dec 2018

Software Architecture Best Practices Performance

Rabbitmq and Sneakers would bring to us a ton of benefits. That is one of many solution for impro...

Tue 18 Dec 2018

Design Patterns

factory_bot.rb require 'set' require 'active_support/core_ext/module/delegation' require 'active...

Thu 01 Nov 2018

Problem Solving

I'm sitting here at Trung Nguyen coffeeshop in Vietnam near the Airport. I'm solving a problem fo...

Wed 24 Oct 2018

Data Structures

You might know, algorithm almost needs data structure. Any data structure is born with at least o...

Tue 23 Oct 2018


Transactions move value from transaction inputs to transaction outputs. An input is a reference ...

Sat 20 Oct 2018

Problem Solving

Problem solving is the essential skill. So what is the good way to improve this skill? So many de...

Fri 19 Oct 2018

Security Blockchain

We use digital signature a lot nowaday. In order to understand the blockchain technology - it's m...

Wed 17 Oct 2018


In this article, I introduce some modern syntaxes of JavaScript. If you are backend developer, yo...

Wed 17 Oct 2018

Javascript Automated testing MERN Stack

If we are ruby on rails developer, it's pretty cool. Why did I say that? Because as we know, we u...

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