Modular Express Routing With Router and mergeParams
Express.Router splits routes across files, but mounting order and param inheritance can trip you up. This post shows a concrete setup and the one flag you need.
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Express trust proxy: architecture note for IP, protocol and hostname behind a reverse proxy
An architecture note on Express trust proxy: how req.ip, req.protocol and req.hostname change behind a reverse proxy, the smallest safe trust setting, spoofing and rate-limit failure modes, and when to redesign.
Modularize Express Routes with Router Instances
Split growing Express route files into modules, mount routers with prefixes, and scope middleware to specific route groups.
nodejsPlotly Express vs. Graph Objects: When to Choose Which API for Interactive Charts
Choosing between Plotly Express and Graph Objects: a quick guide for data analysts and developers. Learn when to use the high‑level API for rapid charts and when to switch to granular Graph Objects for custom dashboards.
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plotlySwitching to express.json(): A Practical Guide for Modern Express Apps
Learn how to replace the old body‑parser with Express’s built‑in express.json() middleware. Understand defaults, limits, custom types, and how to verify raw bodies for secure webhooks. Follow the migration checklist to keep your API safe and efficient.
KrakenJS Configuration: Environment‑Specific JSON, Secrets, and Engineering Trade‑offs
KrakenJS’s JSON‑based config system lets you merge base and environment files, inject secrets via ${ENV_VAR}, and make settings available through app.kraken. Learn how to set up, verify, and avoid common pitfalls in a practical example.
krakenjsExpress Built‑in JSON Parsing: Limits, Errors, and Safe Migration
Learn how Express 4.16+'s built‑in express.json() middleware handles JSON bodies, why the default 100 KB limit triggers 413 errors, and how to raise the limit safely with security mitigations.
jsonManaging Cross‑Cutting Concerns with Express Middleware
Stop duplicating authentication and validation logic in your Express routes. Learn how to implement custom middleware to handle cross‑cutting concerns and keep your handlers lean.
Adding Username/Password Login to an Express App with Passport.js Local Strategy
Step‑by‑step guide to add username/password login with Passport.js local strategy, session handling, and route protection in a Node.js Express app.