Category: Uncategorized
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MySQL Optimization in Practice: Fix Slow Queries with Indexes, EXPLAIN, and Pagination
Slow MySQL queries usually do not start as dramatic production incidents. They begin as a page that takes 300 ms longer than expected, then…
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Python Web Scraping in Practice: Extract Product Data with Playwright and BeautifulSoup
We will create a scraper that:
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Docker Best Practices in Practice: Build a Smaller, Safer Node.js Image
Assume we have a small Express API with this structure:
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API Testing in Practice: Test a REST API with Pytest, Requests, and Fixtures
API testing helps you catch broken contracts before users or frontend developers find them. For junior and mid-level developers, the goal is not to…
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FastAPI in Practice: Build Clean Request Validation with Pydantic Models
FastAPI is a strong choice for building APIs because it makes validation, documentation, and type safety feel natural. Instead of manually checking whether a…
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Laravel PHP in Practice: Build a Clean JSON API with Form Requests and API Resources
In this hands-on guide, we will build a small Laravel API for managing projects. The focus is not on a huge architecture. The goal…
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Selenium Automation in Practice: Test a Login Flow and a Dashboard Check
Selenium is useful when you need to test how a real user interacts with a browser: typing into forms, clicking buttons, waiting for pages…
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CI/CD Pipelines in Practice: Test, Build, and Deploy a Node.js API with GitHub Actions
A CI/CD pipeline turns your release process into repeatable steps: install dependencies, run tests, build the app, and deploy only when everything passes. For…
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Angular Components in Practice: Build a Reusable Confirm Dialog
Reusable components are one of the biggest productivity wins in Angular. Instead of copying the same modal, button, and confirmation logic across multiple pages
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Cloudflare CDN in Practice: Cache Static Assets Safely Without Breaking Deploys
Cloudflare CDN can make a small web app feel much faster, but bad caching rules can also serve stale JavaScript, old CSS, or even…