Helpful MEAN Stack Tutorials
September 9, 2026 · StackPilots
A step-by-step passkey (WebAuthn) implementation for the MEAN stack: credential and challenge models in MongoDB 8, registration and authentication endpoints on Express 5, an Angular 22 signals service with conditional UI autofill, credential management, and Playwright virtual-authenticator tests.
Read moreSeptember 9, 2026 · StackPilots
Stop guessing where the six seconds go. Instrument an Express 5/Mongoose 8 API and an Angular 22 client with OpenTelemetry, get one connected trace per user action, then use the MongoDB profiler and explain() to turn a slow span into a fixed index.
Read moreSeptember 9, 2026 · StackPilots
How we build multi-tenant MEAN apps: a tenant resolved once per request, carried in AsyncLocalStorage, and enforced by a Mongoose 8 plugin so no query can leak across customers — plus indexes, tests and the Angular 22 switcher.
Read moreSeptember 9, 2026 · StackPilots
MongoDB is schemaless; your Mongoose models are not. A step-by-step tutorial for versioned, reversible data migrations in a MEAN app: migrate-mongo scripts, the expand/contract pattern for zero-downtime field renames, batched backfills with bulkWrite, schema versioning, transactions, and CI gates.
Read moreSeptember 9, 2026 · StackPilots
Tracing tells you which request is slow. This tutorial tells you why: reading Mongoose 8 explain plans, using the ESR rule to design compound indexes, fixing COLLSCAN-heavy aggregations, and proving the win with the MongoDB 8 slow query log.
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