Engineering notes
Articles for people who
ship the stack
Rewrites on React, Node.js, TypeScript and AI. A translated body is shown when it exists. If it does not, you see the English text and a note that says so.
Tagged: backend-development
Beyond the API Wrapper: A Middleware Layer for Production LLM Integration
Direct LLM API calls break under real traffic. A middleware layer adds model abstraction, fallback routing, event-driven agents and cost-aware model choice.
6 min readPostgreSQL MCP in Practice: Architecture, Security, Best
PostgreSQL MCP in practice: stop giving AI raw database access, what makes the server different, where it fits next to a REST API, security and best practices.
15 min readCannot Find Module: Debugging Express Imports and Route Params
A TypeScript Express weather API fails on a missing controller import. Trace paths, casing, and exports, then validate :city before calling live weather APIs.
4 min read
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Yes. Each piece is an original English rewrite prepared for this site. Structure and code examples follow the source material; prose is rewritten and checked for overlap before export.
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