Cloud Storage Architecture: Managing File Uploads and Signed URLs via Cloud Buckets
File uploads look simple until the application reaches production. A user selects a file. The browser sends it somewhere. The […]
Securing API Endpoints: Best Practices for JWT Authentication, Environment Variables, and CORS
An API can work perfectly and still be insecure. The routes return the correct JSON. Authentication appears to work. The […]
State Management in React Annotation and Canvas Tools: Managing Fabric.js & Canvas Events
Building an annotation tool in React looks straightforward until the canvas becomes interactive. At first, the application may only need […]
PostgreSQL Connection Pooling in Node.js & Python: Preventing Database Connection Exhaustion
A PostgreSQL connection problem rarely starts with an error. It usually starts with an application that works perfectly. One API […]
Deploying Containerized Python & Express Apps to Google Cloud Run: A Production Walkthrough
Getting an application to run inside Docker is usually the easy part. Getting that container into production without exposing secrets, […]
Automating Scheduled Tasks: Comparing CRON, GitHub Actions, and Google Cloud Scheduler
Scheduled automation often begins with a deceptively simple requirement: Run this script every morning at 6:00. At that point, almost […]
Setting Up Webhook Listeners in Express.js: Handling Real-Time Payloads Securely
Webhooks look simple at first. Create a POST endpoint, wait for another service to send JSON, read the payload, and […]
Headless Browser Automation: Playwright vs. Selenium for Data Extraction and Validation
A browser automation script can look perfectly reliable during development and still fail the moment it meets a real production […]
Automating File Processing with Python: Parsing Complex JSON and Nested CSVs at Scale
A file-processing script usually starts innocently. There is a folder. Some JSON files arrive. Python reads them. A few fields […]
REST API Rate Limiting & Exponential Backoff: Writing Resilient Python API Wrappers
Calling a REST API from Python is easy. Building a client that keeps behaving correctly when the API is slow, […]