How to handle bigint in json stringify

As we know the BigInt type is availble in JavaScript as a data type able to represent any arbitrary large integer number, which is a good supplement when a value exceeds what number could represent. However, when working with applications where you need exchange data with JSON format, the bigint values become a problem because JSON does not know how to serialize bigint values by default, in such cases, one solution is to convert the bigint into string as this post shows.

Upgrade from v3 to v4

Following Upgrade from v2 to v3, this post is about upgrading and its associated packages to the latest versions as of when this post is written and the only setting changes seem to be from the redis-adapater and the way to import client io this time (for our specific use case).

Upgrade from v2 to v3 and its related libraries such as and had a few breaking changes in either functions or behaviors since v3 which might cause issues during the v2-to-v3 migration. This post lists what was encountered and how to solve it for specific use cases based on hands-on experience.

JS resources

Since I find myself writing code more and more in JavaScript nowadays regardless of backend or frontend development, I figure out I should at least give it a look seriously, the first time in more than 10 years, and here are the resources I find useful while diving into this long overlooked programming language.

Where is ruby defined? defined?

Ever wonder where ruby’s defined? is defined? Because it looks so like a method, you might end up trying to check out a bunch of places, such as: Object, Kernel, BasicObject, or even Class or Module, but only to find no luck locating it in any of such places. Well, only until you’ve realized it, the answer is pretty simple: defined? is not a method but an operator or a keyword.

Switch rails server from unicorn to puma

In rails apps among the commonly-used two popular web servers, unicorn serves requests with worker processes, while puma can do it with both process workers and threads. Therefore, switching to puma from unicorn can not only help improve concurrency but also reduce memory usage. Plus, since rails 5.0, the default web server used is puma.

Upgrade rails from 5.1 to 5.2

Upgrading application rails version from 5.1 to 5.2 is much easier than doing from 4.2 to 5.0 or from 5.0 to 5.1, there are very few changes to handle and chances are there is no test failure.

How to import millions of records into mysql

With a gem called activerecord-import, importing a huge amount of records into mysql table becomes an easier task to do, and this post demonstrates how to achieve it.

Upgrade rails from 5.0 to 5.1

Upgrading application rails version from 5.0 to 5.1 is easier than doing from 4.2 to 5.0, since it’s only a minor version update. However, there might still be quite a few things to address either from framework changes or due to outdated gems dependency.

Ruby rspec

RSpec is a popular test framework in ruby.