TechnoApple Blogs
Practical guides, tutorials, and insights on cloud, full-stack development, and everything in between.
Most Recent
All posts →Fixing Image Loading Issues on Netlify with netlify.toml Configuration
2026/08/19·8 min readLearn how to fix image loading issues when deploying Next.js applications to Netlify, understand what netlify.toml is, and configure redirects like HTTP to HTTPS using best practices.
C# CancellationToken Best Practices for Web API
2026/05/15·12 min readLearn the best practices for using CancellationToken in ASP.NET Core Web APIs, with real-world code samples, client/server demos, and practical guidance for robust cancellation handling.
Modern C# Language Features: Pattern Matching, Records, and More
2026/05/05·18 min readExplore modern C# features from C# 7 to 13, including pattern matching, records, collection expressions, and primary constructors for cleaner, more expressive code.
Claude Code - Anthropic's AI Agent That Lives in Your Terminal
2026/05/04·7 min readAn introduction to Claude Code — Anthropic's agentic AI coding tool that runs in your terminal, reads your codebase, and executes multi-step tasks autonomously.
GitHub Copilot - The AI Coding Assistant That Changes How You Write Code
2026/05/04·8 min readA practical guide to GitHub Copilot — what it is, how to set it up in VS Code, and tips for getting the most out of AI-assisted coding.
Lighthouse Pipeline - Automate Performance Testing in CI/CD
2026/05/04·8 min readImplement automated Lighthouse performance testing in your CI/CD pipeline to catch performance regressions early. Learn the problems, challenges, and solutions for integrating Lighthouse into GitHub Actions or other CI systems.
Front-End
View all →Claude Code - Anthropic's AI Agent That Lives in Your Terminal
2026/05/04·7 min readAn introduction to Claude Code — Anthropic's agentic AI coding tool that runs in your terminal, reads your codebase, and executes multi-step tasks autonomously.
GitHub Copilot - The AI Coding Assistant That Changes How You Write Code
2026/05/04·8 min readA practical guide to GitHub Copilot — what it is, how to set it up in VS Code, and tips for getting the most out of AI-assisted coding.
How to Fix 502 and 503 Gateway Errors on AWS EC2 with an Application Load Balancer
2026/02/14·12 min readA deep-dive into why 502 and 503 errors appear on a Node.js app hosted on AWS EC2 behind an ALB, what causes them, and how to fix them properly with an Auto Scaling Group and a robust bootstrap script.
Get Start with Web Worker
2024/03/09·1 min readHow to get start with Web Worker
How to Test GCP Function Locally with Node.js
2023/06/01·1 min readThis blog shows how to test GCP Cloud Function locally with Node.js.
Deploy GCP Cloud Function with Event Trigger via PubSub
2023/04/06·2 min readThis blog shows how to create a simple Node.js app and deploy it to GCP Cloud Functions as a Pub/Sub event trigger.
Back-End
View all →C# CancellationToken Best Practices for Web API
2026/05/15·12 min readLearn the best practices for using CancellationToken in ASP.NET Core Web APIs, with real-world code samples, client/server demos, and practical guidance for robust cancellation handling.
Modern C# Language Features: Pattern Matching, Records, and More
2026/05/05·18 min readExplore modern C# features from C# 7 to 13, including pattern matching, records, collection expressions, and primary constructors for cleaner, more expressive code.
C# ValueTask vs Task in Three-Tier APIs — When to Use Each
2026/03/02·16 min readUnderstand when to use Task vs ValueTask in ASP.NET Core three-tier APIs, with practical examples for cache-heavy, always-I/O, and batch aggregation scenarios.
C# Task Combinators: Task.WhenAll, Task.WhenAny, Task.WhenEach, and Parallel.ForEachAsync
2026/02/18·13 min readLearn when to use Task.WhenAll, Task.WhenAny, Task.WhenEach, and Parallel.ForEachAsync, including practical patterns for primary/fallback concurrency in real apps.
C# Configuration & Options Pattern - Cheatsheet
2026/02/04·3 min readOne-page quick reference for ASP.NET Core configuration, Options pattern, and DI registration patterns.
ConfigureAwait(false) in C# and ASP.NET Core: Deadlocks, 3-Tier API, and Library Rules
2026/01/18·20 min readLearn exactly what ConfigureAwait(false) does, when it prevents deadlocks, why ASP.NET Core usually does not need it, and how to apply it correctly in reusable library code.
Cloud
View all →How to Fix 502 and 503 Gateway Errors on AWS EC2 with an Application Load Balancer
2026/02/14·12 min readA deep-dive into why 502 and 503 errors appear on a Node.js app hosted on AWS EC2 behind an ALB, what causes them, and how to fix them properly with an Auto Scaling Group and a robust bootstrap script.
How to Create AWS EC2 by Terraform
2023/02/03·10 min readThis blog demonstrates how to set up a production-ready AWS infrastructure with EC2, ALB, Route 53, and HTTPS using Terraform.
How to Setup Node.JS Web Server to AWS with ECS and Fargate
2022/10/11·6 min readThis blog will focus on how to create a simple Node.js app using Docker, then push the Docker image to AWS ECR and ECS and use AWS Fargate to serve this Node.js web server.
How to Setup Node.JS Web Server to AWS with ECS
2022/10/11·6 min readThis blog will focus on how to create a simple Node.js app using Docker, then push the Docker image to AWS ECR and ECS and use AWS Fargate to serve this Node.js web server.
How to Change DNS Nameservers from Godaddy to Point to AWS Route 53
2022/08/09·2 min readThis blog shows how to change your DNS nameservers from GoDaddy to point to AWS Route 53. Assuming you have registered a DNS domain at GoDaddy but want to host a website at AWS, this guide provides steps on how to achieve this goal.
Setting Up Next.js on AWS EC2 Instance
2021/10/02·2 min readNext.js is a React-based web application framework built on top of Node.js. AWS EC2 is Amazon's cloud computing service which hosts VMs in the cloud. In this tutorial, we will manually create an EC2 instance, SSH into it, and install and set up Next.js.
Machine Learning & AI
View all →ML Regression — House Price Prediction with Python
2026/02/24·10 min readA step-by-step guide to building a Linear Regression model for house price prediction using Python, scikit-learn, and pandas — covering EDA, feature engineering, training, and evaluation.
How to Build Your First Vertex AI Model Using AutoML
2026/01/02·5 min readA practical guide to predicting housing prices using GCP Vertex AI with AutoML Tabular.
How to Get Started with Python with Visual Studio Code
2023/03/04·2 min readThis blog describes how to get started with Python quickly so you can use Python with your work tomorrow.
How to Get Started with Python
2021/02/08·1 min readAs an experienced developer with C# and JavaScript who hasn't done any work with Python yet, my main motivation for learning Python is to learn AI and ML, as many courses require basic Python knowledge. As a beginner starting to learn Python, I searched around for good resources and will share them here.
Generate PokemonGo RPC Protos to C#
2016/07/13·2 min readHow to generate Pokemon Proto API to C# types
Python Hello World
2015/07/09·1 min readGet started with Python with a simple Hello World example.