Why should you care?

You need Circuit Breaker in ASP.NET Core Web API when moving from one API to many services that deploy independently.

See it live — copy this example

Create a Web API project (dotnet new webapi), paste the code, then run dotnet run.

// Circuit Breaker in ASP.NET Core Web API
dotnet new webapi -n ShopNest.Service
// Apply this lesson pattern in Program.cs

Run Example »

This lesson uses terminal or setup steps. Run commands on your computer — the live editor appears on coding lessons.

What happened?

• Read the example line by line.
• Each part connects to Circuit Breaker in ASP.NET Core Web API.

Try it yourself

1. Create or open the ShopNest service project.
2. Apply the pattern from this lesson.
3. Run dotnet build && dotnet run.
4. Change a string or route in the example and save — watch Swagger or the RabbitMQ Management UI update.
5. Break the code on purpose (remove a semicolon), read the error message, then fix it.

Remember

You learned Circuit Breaker in ASP.NET Core Web API in plain terms. Practice on ShopNest before moving on.