Tutorials ASP.NET Core Web API Tutorial
Real-time Ecommerce Application using ASP.NET Core Web API and EF Core — Capstone
Real-time Ecommerce Application using ASP.NET Core Web API and EF Core — Capstone: free step-by-step lesson with examples, common mistakes, and interview tips — part of ASP.NET Core Web API Tutorial on Toolliyo Academy.
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ASP.NET Core Web API Tutorial · Lesson 165 of 175
Real-time Ecommerce Application using ASP.NET Core Web API and EF Core
Beginner ✓ → Intermediate ✓ → Advanced ✓ → Professional
Professional · 4 — E-commerce capstone · ~10 min · Module 16: E-Commerce Real-Time Application
What is this?
Capstone overview: build ShopNest e-commerce API end-to-end — customers, catalog, cart, orders, payments, refunds, feedback.
Why should you care?
One deployed multi-module API on GitHub is worth more than 175 lessons without a finished project.
See it live — copy this example
Create a Web API (dotnet new webapi), paste the example, run dotnet run, test in Swagger.
ShopNest.ECommerce.sln
├── ShopNest.Api (controllers, DTOs)
├── ShopNest.Domain (entities)
├── ShopNest.Infrastructure (EF Core, repos)
└── ShopNest.Application (services, validators)Run Example »
This lesson uses terminal or setup steps. Run commands on your computer — the live editor appears on coding lessons.
What happened?
- Follow the practice steps below on ShopNest.API — typing code yourself is the fastest way to learn.
Try it yourself
- Clone or create solution structure.
- Complete modules in order: Customer → Product → Cart → Order → Payment.
- Add Swagger + JWT + README with architecture diagram.
- Change a route URL or DTO property and save — test again in Swagger or curl.
- Return the wrong status code on purpose (404 instead of 200) and see what the client shows.
Remember
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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