Be Hai Nguyen articles - 67 total
rlox: A Rust Implementation of “Crafting Interpreters” – Scanner
I am attempting a Rust implementation of Robert Nystrom's Lox language discussed in Crafting...
Raspberry Pi 4B: Natively Build a 64 Bit Fully Preemptible Kernel (Real-Time) with Desktop
In this article, I present a step-by-step procedure to natively patch and build a 64-bit Fully...
Python & MariaDB: Which Driver? An Example of Executing a Stored Procedure That Returns Multiple Result Sets
In this discussion, I explain why I prefer the Python MySQL driver, mysql-connector-python, for the...
Python FastAPI: Implementing Non-Blocking Logging with Built-In QueueHandler and QueueListener Classes
Continuing with our Python FastAPI learning series, this post explores the implementation of...
Python FastAPI: Integrating OAuth2 Security with the Application's Own Authentication Process
In the first post, we explore some aspects of OAuth2 authentication, focusing on the /token path as...
Python: A SQLAlchemy Wrapper Component That Works With Both Flask and FastAPI Frameworks
In late 2022, I developed a database wrapper component for SQLAlchemy. Initially designed for use...
Rust: Actix-web -- Async Functions as Middlewares
In the tenth post of our actix-web learning application, we added an ad hoc middleware. In this post,...
Rust: Actix-web Daily Logging -- Fix Local Offset, Apply Event Filtering
In the last post of our actix-web learning application, we identified two problems. First, there is...
Rust: Actix-web and Daily Logging
Currently, our actix-web learning application simply prints debug information to the console using...
Rust: actix-web JSON Web Token authentication.
In the sixth post of our actix-web learning application, we implemented a basic email-password login...
Rust: actix-web get SSL/HTTPS for localhost.
We are going to enable our actix-web learning application to run under HTTPS. As a result, we need to...
Rust: actix-web endpoints which accept both application/x-www-form-urlencoded and application/json content types.
We're implementing a login process for our actix-web learning application. We undertake some general...
Rust: retrofit integration tests to an existing actix-web application.
We've previously built an actix-web “application”, which has five (5) public POST and GET routes. We...
Using the Redis Official Docker Image on Windows 10 and Ubuntu 22.10 kinetic.
The Redis Docker Official Image includes both the Redis server and the Redis CLI. We discuss the...
Rust: JSON Web Token -- some investigative studies on crate jsonwebtoken.
Regarding crate jsonwebtoken, the primary question is still how to check if a token is still valid,...
Rust: JSON Web Token -- some investigative studies on crate jwt-simple.
Via experimentations, I seek to answer the following question regarding crate jwt-simple: how do we...
Rust: seconds since epoch -- “1970-01-01 00:00:00 UTC”.
We look at some simple seconds since epoch calculations using std::time and time...
Rust web application: MySQL server, sqlx, actix-web and tera.
We write a Rust web application using a MySQL database. We use the already familiar crate sqlx for...
Rust SQLx CLI: database migration with MySQL and PostgreSQL.
Database migration is the process of developing, and refactoring the application database as part of...
Rust & MySQL: JSON serialisation of result sets retrieved using crate sqlx.
We run a MySQL stored procedure which returns a result set which has date columns. Using crates serde...
Docker on Ubuntu 22.10: running mysql:8.0.34-debian with custom config, socket, database and log files reside on host machine.
We'll look at how to run the official mysql:8.0.34-debian image on Ubuntu 22.10, which we'll store...
Rust & MySQL: executing MySQL stored procedures which return multiple result sets using crate sqlx.
MySQL stored procedures can return multiple result sets. In this post, we’re looking at calling such...
Rust & MySQL: delete, insert data using crate sqlx.
We'll look at: how to delete data from and insert data into MySQL tables using crate sqlx. This post...
Rust & MySQL: connect, execute SQL statements and stored procs using crate sqlx.
We'll discuss: ⓵ how to connect to a MySQL server, ⓶ run queries to select some data and display...
Rust: baby step -- some preliminary look at date.
Trying to understand how date works in Rust. Specifically how to get the current local date, and how...
Python, Flask: Railway.app deployment and Railway's Nixpacks Docker image build tool.
I've successfully deployed my Australian postcodes API project to https://railway.app. I did have...
CI/CD #06. Jenkins: accessing private GitHub repos using SSH keys.
Using a generated public-private key pair, we set up a GitHub SSH key (public key), and Jenkins SSH...
Ubuntu Bootable USB stick: The “elusive” 😂 “Try or Install Ubuntu” option...
My Ubuntu 22.10 no longer booted. I tried to do a reinstallation using the original bootable USB...
Python: A simple web API to search for Australian postcodes based on locality aka suburb.
Using the Flask-RESTX library to implement a simple web API to search for Australian postcodes based...
Python: WTForms 3.0.1 customising built-in error messages.
An approach to customise WTForms 3.0.1 built-in error messages before (possible) translation and...