Build an Inventory
Management System
A friendly, step-by-step guide to building a complete inventory system. You'll set up secure login, verify users via email, build a product dashboard, and configure automatic alerts when items run low. Choose your preferred tools, we cover all options side-by-side.
What You'll Build
A small-store inventory manager. A shopkeeper signs up, confirms their email, logs in, and manages products. When any product runs low, the system emails them automatically.
- ✓Register & log in securely — passwords hashed with bcrypt, sessions carried by a JWT (a signed login token) in an httpOnly cookie.
- ✓Verify email before access— a one-time signed link confirms the address; unverified users can't log in.
- ✓Add products— name, SKU (a product's unique code), quantity in stock, and a minimum-stock threshold.
- ✓Update & delete products — edit details or restock; remove discontinued items.
- ✓View stock — a dashboard table listing every product and its current quantity.
- ✓Automatic low-stock alerts — when
quantity ≤ minStock, the owner gets a notification email.
Pick Your Stack
Every layer has one job. Choose one option per slot and you have a complete app. This guide shows the code for every option side-by-side, so any combination works.
How This Guide Works
Seven build steps — eight pages counting this overview. Each builds on the last. Use the Next → button at the bottom of every page to move through the build, or jump around from the sidebar.