Calvin.My

Using Active Storage for API project

With AWS S3 as storage service provider

Guide Rails Active Storage S3 AWS

Posted by Calvin Chieng on May 13, 2018, 15:30

Nginx 1.13.9+ HTTP/2 server push

To reduce round trip time (RTT)

Guide Nginx HTTP2 Performance

Posted by Calvin Chieng on March 22, 2018, 23:34

How to use yarn in Rails 5.1 to manage javascript dependencies?

Including steps to upgrade from older version of Rails

Guide Rails Javascript Yarn

Posted by Calvin Chieng on March 22, 2018, 17:10

How to set CAA DNS record?

To hint SSL CA if they are authorized to issue a cert for this domain

Guide Security SSL DNS

Posted by Calvin Chieng on March 21, 2018, 17:48

How to upgrade Gradle in your Android project?

Gradle Distribution and Android Gradle Plugin

Guide Android Gradle Upgrade

Posted by Calvin Chieng on March 17, 2018, 18:17

Redis store integration steps

Rails cache store using Redis

Guide Rails Cache Redis

Posted by Calvin Chieng on March 16, 2018, 11:47

Deploy rails app using Capistrano

Capistrano is an useful deployment automation tool

Guide Rails Capistrano Deployment

Posted by Calvin Chieng on December 3, 2017, 02:10

Use rails 5.1 encrypted secrets

To protect production credentials even if they are committed into git

Guide Ruby Rails Secret Encryption

Posted by Calvin Chieng on December 2, 2017, 22:45

Making a Facebook Messenger Bot

A bot that do simple math calculation

Guide Rails Facebook API Chatbot

Posted by Calvin Chieng on August 5, 2017, 18:11

Making a simple Telegram Chatbot

Accepting text inputs and render simple response

Guide Rails Telegram API Chatbot

Posted by Calvin Chieng on July 31, 2017, 11:16

Implement and Verify Certificate Pinning in Android

With Android Nougat Security Config and Retrofit

Guide Android Security Retrofit SSL

Posted by Calvin Chieng on July 28, 2017, 20:27

Deploying Laravel on Ubuntu

With PHP7, Nginx

Guide PHP7 Laravel Nginx Ubuntu Deployment

Posted by Calvin Chieng on July 23, 2017, 12:47

Generate and validate request signature for HTTP APIs

To identify who is sending and the content received is what is intended to be sent.

Guide Rails API Signature

Posted by Calvin Chieng on June 11, 2017, 15:36

RSA public key encryption and private key decryption

With Ruby and Openssl

Guide Ruby OpenSSL Encryption Public Key

Posted by Calvin Chieng on May 18, 2017, 04:16

Basic NodeJs setup on Ubuntu 16.04

For production environment

Guide NodeJs NPM PM2 Nginx Setup

Posted by Calvin Chieng on May 8, 2017, 11:57