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Languages & runtimes · #nodejs
Kraken.js moved Express middleware order into JSON config via the meddleware module. Here's how priority-based pipelines work, how to verify them, and when the indirection isn't worth it.
Deciding between global app.use() middleware and route-specific middleware in Express comes down to scope, cost, and failure modes. This guide compares both and shows a validated implementation.
PM2 cluster mode uses all your CPU cores and `pm2 reload` deploys without dropping requests — but only if your app honors the shutdown contract. Here's the config, the code, and how to verify it.
Stop drowning in error alerts by using Sentry’s Release Health. Tag each deployment, view new‑issue spikes per release, and set alerts that focus on regressions. A Node.js example shows the exact SDK call and CI step needed.
Stop broadcasting to every client. Learn how to use Socket.IO rooms to target specific groups of users and how to scale that logic using the Redis adapter.
Make a multi-write AdonisJS operation atomic with a Lucid transaction: pass one client to every query, throw domain errors to roll back, and prove it with a failure-forcing test.
Stop the cycle of random bot restarts. Learn how to properly configure discloud.config to align your RAM limits with your runtime and avoid OOM crashes.
Build safe, dynamic SQL filters in Knex.js using conditional .where() calls and parameterized values. Avoid string concatenation and SQL injection.
Sequelize transactions let you bundle database operations into an atomic unit. Learn how to start, commit, rollback, and use nested transactions with async/await, including pitfalls and best‑practice patterns.
express
krakenjs
pm2
redis
adonisjs
knexjs
sequelize