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didof.dev Blog

Run n8n and SearXNG Locally with Docker: Build Your Own No-Code AI Playground

Discover how to set up n8n and SearxNG to build a private AI agent for web searches. You'll have an AI agent that fetches information online without tracking your data. Ideal for those interested in automation and privacy!
Optimize Three.js: 4 Key Techniques

Practical tips for improving performance when working with Three.js scenes in real-world projects.
Built-in-like Range in JavaScript

Make it possible to generate any range of integers with built-in-like syntax.
Penetration and Security in JavaScript

Are you sure you are ensuring your code to be used as intended? Are you preventing it from beeing used in a malicious way? If what comes your way is putting guards in your functions, this post will open up a world for you. Using checks is not enough.
OAuth popup ~ Practical Guide

Enhance your GitHub OAuth implementation by using a popup approach for authentication in single-page applications (SPAs). This guide walks you through the process of spawning a popup for user authentication and securely handling the access token.
Cache-Control max-age, stale-while-revalidate

Until now, thanks to Last-Modified/If-Modified-Since or ETag/If-None-Match we mainly saved on bandwidth. However, the server always had to process each request.
CORS, Preflight request and OPTIONS Method

This post is intended to be a light reading with the purpose to give a minimum of context and instill some curiosity towards a topic often considered opaque - CORS are a simple HTTP-header mechanism that every web developer can easily understand.
ETag/If-None-Match

we explored the usefulness of the Last-Modified Response Header and If-Modified-Since Request Header. They work really well when dealing with an endpoint returning a file. What about data retrieved from a database or assembled from different sources?
GitHub App and OAuth ~ Disjointed flow

Discover how to integrate GitHub App functionality into an existing OAuth-based authentication system. This guide explains how to authenticate as a GitHub App using JWT, retrieve installation IDs, and access repositories associated with the app.
GitHub App and OAuth ~ Practical Kick-Starter

Learn how to build an interface that allows GitHub-authenticated users to view which repositories have a specific GitHub App installed. This guide covers creating a GitHub App, implementing OAuth authentication, and querying the GitHub REST API for installations and repositories.
Headers for large files

HTTP headers Content-Length, Content-Encoding, and Transfer-Encoding impact the transmission of large files in web applications. With a practical Node.js server example, learn about header combinations and the importance of the Content-Length header and gzip compression for optimizing web performance.
How to Use a Reverse Trie for Fast Disposable Email Domain Detection

Learn how to use a reverse Trie to efficiently detect disposable email domains. Optimize your domain lookups with a scalable, memory-efficient solution tailored for fast and precise results.
Throttling Explained: A Guide to Managing API Request Limits

Learn how to implement a simple and effective throttling system in TypeScript to protect your APIs from overload. This guide covers rate-limiting strategies, IP tracking, and periodic cleanup to manage stale records and optimize performance.