Tutorials ADO.NET Core Tutorial
ADO.NET with ASP.NET Core Web API — Complete Guide
ADO.NET with ASP.NET Core Web API — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of ADO.NET Core Tutorial on Toolliyo Academy.
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ADO.NET Core Tutorial · Lesson 52 of 100
ADO.NET with ASP.NET Core Web API
Foundations ✓ → SQL & safety ✓ → Production → Projects
Production · 3 — ASP.NET & enterprise · ~6 min · Module 6: ASP.NET Core Integration
What is this?
Minimal/API controllers call ADO.NET repositories and return DTOs/ProblemDetails.
Why should you care?
ShopNest public/order APIs are Web API + SqlClient under the hood.
See it live — copy this example
Use a .NET console or API project with SQL Server LocalDB. Run dotnet run after pasting.
app.MapGet("/orders/pending", async (IOrderRepository repo, CancellationToken ct)
=> Results.Ok(await repo.GetPendingAsync(ct)));What happened?
- Map endpoints to repos.
- Use ProblemDetails for SqlException mapping.
- Health checks ping SQL.
Practice next
- MapGet pending.
- Return DTOs.
- Add health check.
- MapPost insert order.
- Return 201 with id.
Remember
API → repo → ADO.NET. DTO responses. Health checks.
ShopNest orders API
GET pending uses ADO.NET.
Outcome: Mobile clients consume clean JSON.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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