The Different Kind of API Design

January 19, 2025 · 14 min read · Page View:

In the daily life, we often hear about different kind of API, such as REST API, GraphQL API, WebSocket, Webhook, RPC and gRPC even the SOAP, so do you know the difference between them? How to choose the right API for your project?

The Encode and Decode in Python

January 19, 2025 · 0 min read · Page View:

Do you really know the encode and decode in Python?

About the Systemd

January 18, 2025 · 2 min read · Page View:

It has been a long time that the linux use init to manage the startup process, such as sudo /etc/init.d/apache2 start or service apache2 start, but the init is serial. To address this issue, the systemd was born. The d is the abbreviation of daemon, which means the systemd is a daemon manager. The systemd substitutes the initd and becomes the default main process PID 1.

The Tips About Dockerfile

January 18, 2025 · 3 min read · Page View:

Normally, we often write a Dockerfile in the current directory.

• The Dockerfile is a configuration file that describes how to build the image. You can refer to the official documentation for more details.
• If you list more than one CMD, only the last one takes effect. So if you have multiple commands to run, you better write them in a script file.
• Docker is not the VMware, there is no systemd in the container. Its startup program is the container application process. The container exists for the main process. Once the main process exits, the container loses its meaning of existence and thus exits. So when you execute multiple commands and if they are blocking, you better write the previous commands in nohup and the last command in the blocking command. (never use the command such as CMD service nginx start, the CMD only will execute as CMD [ "sh", "-c", "service nginx start"], when the sh is executed, the container will exit, the correct way is run it directly CMD ["nginx", "-g", "daemon off;"])

Docker Cheatsheet

January 17, 2025 · 2 min read · Page View:

This is a cheatsheet of docker.

Note: the docs will be updated from time to time.

Docker 101

January 16, 2025 · 8 min read · Page View:

Docker is a practical tool for everyday use, and like Git, you can learn it in just 30 minutes.

The Instance Class Static Magic Method in Python

January 14, 2025 · 2 min read · Page View:

So what is the difference between the Instance method, the Class method and the Static method?

The Overview of Security

January 8, 2025 · 3 min read · Page View:

In today’s digital age, security is paramount. As we increasingly rely on technology for communication, commerce, and data storage, understanding the fundamentals of security becomes essential. This article provides an overview of key security concepts, including encryption, digest algorithms, and digital signatures. By exploring these topics, we aim to equip you with the knowledge to protect your digital assets and ensure the integrity and confidentiality of your information. Whether you’re a tech enthusiast or a professional in the field, this guide will offer valuable insights into the mechanisms that safeguard our digital world.

How to Publish Your Code as a Pip Module

January 7, 2025 · 2 min read · Page View:

Last week, I have made a python cli tool. To make it more convenient to use, I want to publish it as a pip module, so I have made some research and mistakes, and finally succeeded.

Some Good Things to Share About the Packages

January 6, 2025 · 0 min read · Page View:

As a developer, I have been using many packages in my projects. Sometimes I may even forget the existence of the packages. When I changed my devices or some one else asked me, it’s hard for me to remember everything to recommend. Thus I will try to list the things which I think are very helpful and useful to share with you. Maybe we can even make an “Annual Oscar Awards ceremony” for the things.

Note: This post will be updated regularly.