Hi, I am

Yeo Chai Heng

 

I was born in and am living in Singapore,

an island city-state with beautiful skylines.

 

I am currently employed as an Application Developer @ SAP

 

I am also a Management of Technology student @ NUS

I build things with tools from the computing world:

I write on my blog:

How to send an HTTP request to a HTTP Basic Authentication endpoint in Java without using any external libraries

One common task for Java developers is to write codes that communicate with API endpoints. Chances are these endpoints could use HTTP Basic Authentication for authenticating the HTTP request sender.

Although there are good libraries to help us craft and send HTTP requests to a web server in Java, I prefer to use the Java core library so as to keep my Java program lightweight.

Referencing my earlier post on how to construct a HTTP request to an endpoint with HTTP basic authentication, this post documents how to send an HTTP request to a HTTP Basic Authentication endpoint in Java without using any external libraries.

Setting up WordPress on Raspberry Pi Zero W with Raspbian Stretch Lite, nginx, MariaDB and PHP as the LEMP stack

A Raspberry Pi Zero W is a small and capable computer that included a Wi-Fi chip for projects that requires an Internet connection.

Apart from running client programs on the Raspberry Pi Zero W, it is equally capable of being a web server. Since I had a spare Raspberry Pi Zero W lying around the house, I decided to use it as a WordPress server to collect content for a new blog project.

This post documents how I setup WordPress on a Raspberry Pi Zero W with Raspbian Stretch Lite, nginx, MariaDB and PHP as the LEMP stack.

How to construct a HTTP request to an endpoint with HTTP basic authentication

The HTTP basic authentication is a mechanism commonly used by web servers to authenticate the sender of a HTTP request. Such a mechanism is usually used to guard server endpoints that are meant to be accessed programmatically.

Almost every new project that I got my hands on required me to create client side coding for accessing server endpoints that use HTTP basic authentication for authenticating the HTTP request sender.

To have a quick reference on how to construct a HTTP request to an endpoint with HTTP basic authentication, I created this post to as a documentation. The steps are agnostic to any programming languages.

How to reflect cart count at the cart icon as and when products are added or removed from the cart in WooCommerce

Although there is a hassle free option of using WooCommerce.com as your e-commerce store, you may prefer to host your own.

If you are familiar with WordPress and wish to host your e-commerce website, WooCommerce is also available as a WordPress plugin that augments WordPress with e-commerce website features.

Although more work needs to be done for self-hosted WordPress sites, we have the option of creating our own themes without having to pay additional charges on top of the web hosting fees.

When it comes to creating our own WooCommerce themes, one feature that we may want to implement would be to show the number of products that had been added to our WooCommerce cart near the shopping cart icon as and when products are added or removed from the cart.

This post documents how we can reflect cart count at the cart icon as and when products are added or removed from the WooCommerce shopping cart.

How to setup Raspbian Stretch Lite on Raspberry Pi Zero W to run Python 3 applications

With Wi-Fi included, the Raspberry Pi Zero W is very useful for implementing embedded projects that require Internet connection.

Apart from using the Raspberry Pi Zero W for CCTV surveillance, we can run customized Python 3 applications on a Raspberry Pi Zero W for various use cases.

Pairing the official operating system for Raspberry Pi with Python 3, we will be able to get a versatile computer to do our bidding.

Anticipating the need to setup a version of Raspbian Lite on Raspberry Pi Zero W for future Python 3 projects, I created this post to document the steps of how to do so with Raspbian Stretch Lite.

That's all for now...

If you wish to know more about me, you can visit these websites: