ADVANCED • Observability and Operations

Reliability Sprint: enforce strict input validation #17

This lesson targets enforce strict input validation in a realistic payments status gateway workflow. You will practice commands: npm install ioredis bullmq pino | docker compose up -d | prom-client register.metrics(). The code example is specific to backend API engineering tasks for this lesson objective.

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If this never completes: start PostgreSQL, check DATABASE_URL and DIRECT_URL in .env, run npx prisma db push. Optional: set SKIP_RUNTIME_CATALOG_SEED=1 to skip heavy catalog seed while debugging.