Alex Merced — Developer and technical writer sharing in-depth insights on data engineering, Apache Iceberg, data lakehouse architectures, Python tooling, and modern analytics platforms, with a strong focus on practical, hands-on learning.
610 articles from this blog
A comprehensive 2022 cheatsheet for ExpressJS covering project setup, middleware, routing, and server configuration.
A beginner-friendly tutorial on building a Todo List web application using Express.js and Node.js, covering setup, routing, templating, and deployment.
Explains the Web Storage API, focusing on synchronous key/value storage using localStorage and sessionStorage for browser-based data.
A tutorial on building a static markdown blog using Next.js, covering setup, components, and rendering posts.
A comprehensive cheatsheet for JavaScript DOM manipulation and jQuery, comparing vanilla JS and jQuery syntax for common web development tasks.
A beginner's guide to Scala 3, covering installation, project setup, and basic syntax like variables and the main function.
Explains SSH (Secure Shell), its purpose for secure remote computer connections, and how to generate and use SSH keys.
A technical guide exploring API protocols like REST, GraphQL, and RPC, with a practical walkthrough of building an RPC API using gRPC and Node.js.
A tutorial on using Docker and Docker Compose to create a consistent, multi-language development environment with databases and VSCode integration.
Explains why Markdown is an essential skill for developers, covering its uses, basic syntax, and benefits for productivity.
A guide outlining a realistic path to becoming a web developer in 2022, covering foundational learning, education options, and job hunting.
A tutorial on implementing a one-to-many database relationship with user authentication using the Masonite framework in Python.
A tutorial on implementing JWT authentication in an Express.js API, with examples using both MongoDB and PostgreSQL databases.
A tutorial on implementing a simple, custom global state management solution in React using Context API and hooks.
A technical guide to modeling one-to-one, one-to-many, and many-to-many relationships in MongoDB using the Mongoose ODM in Node.js.
A technical guide explaining how to implement authentication and authorization in any backend language or framework, covering user models, signup/login routes, and session vs JWT auth.
A tutorial on building a habit tracker using GraphQL, Hasura for the backend API, and React for the frontend.
A guide to essential developer team workflows covering Git branching strategies, Agile methodologies, and CI/CD practices for effective collaboration.
A technical comparison of React Router 5, React Router 6, and React Location, covering installation, setup, and common routing tasks.
A comprehensive cheatsheet for using popular templating engines (LiquidJS, EJS, Mustache, Pug, Handlebars) in Express.js applications.
