Full-stack catalogue for machinery, spare parts and service – an ASP.NET Core API with a Next.js front end and an admin area for managing categories, subcategories and image galleries.
An own project without a real client: a Turkish-language product catalogue for machinery, spare parts and services. Back end and front end are separate – a REST API in ASP.NET Core and a Next.js front end. All catalogue content is managed in the admin area.
What I built
Public catalogue with categories, subcategories and image galleries, each image with a title and description
Admin area with login: create, edit and delete categories and subcategories
Several images per subcategory – upload, caption and remove each one
Uploads of images and PDFs up to 10 MB, stored in Cloudinary or on the server volume
Company and contact pages
Technical details
REST API with ASP.NET Core 9 and Entity Framework Core on PostgreSQL; every write route requires the Admin role (JWT)
Passwords hashed with BCrypt; admin credentials and the JWT key come only from environment variables and are reconciled on every start – a password change takes effect with the next deploy
When an entry is deleted or an image replaced, the API also removes the file from storage
Next.js 16 with the App Router, catalogue pages rendered on the server
Two-stage Docker image and a Render blueprint; the API reads Render’s database URL and enables SSL for Render hosts
Health endpoints for the API and the database to troubleshoot in production
