ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Developer tools · #mongoose
Use Mongoose skip() and limit() with countDocuments() for stable, index-aware page-based pagination in Node.js.
Mongoose middleware gives a single enforcement point for data integrity across all entry points, but only as a local trust boundary not an authorization layer. Maps hook types to jobs, failure modes, and a verification script.
Learn how Mongoose pre('save') middleware centralizes field normalization for regular saves, why bulk operations bypass it, and how to handle the gap safely.
Learn how to add a Mongoose pre‑save hook that hashes passwords with bcrypt only when they are changed, keeping plaintext credentials out of MongoDB.
Stop repeating data sanitization logic in your controllers. Learn how to use Mongoose pre and post hooks to centralize password hashing and side effects.
Learn how to centralize validation and side‑effects in Mongoose using schema pre‑ and post‑save hooks, with a concrete password‑hashing example and guidance on testing and performance trade‑offs.
When defining a Mongoose schema, decide between built‑in validators and custom functions. This guide compares options, explains trade‑offs, and provides a concrete example with performance checks.
Use Mongoose’s .lean() to skip document hydration on read‑heavy endpoints, saving CPU and memory. Learn when it’s safe, how to enable virtuals, and benchmark the benefit.
Mongoose middleware lets you run code automatically on document lifecycle events. This guide shows how to use pre‑save hooks for data normalization, post‑save hooks for side effects, and query middleware for updates. It also covers common pitfalls and when to avoid middleware.
nodejs
mongodb