Why should you care?

You care about this when Payment API goes down for 30 seconds and you do not want Order to hang forever or crash.

See it live — copy this example

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

// Failover Strategies — ShopNest.InventoryService.Api
builder.Services.AddScoped<IInventoryServiceService, InventoryServiceService>();

app.MapGet("/health", () => Results.Ok(new { status = "healthy", service = "Inventory Service" }));

Run Example »

Edit the code and click Run — like W3Schools Try it Yourself.

What happened?

• The example shows Failover Strategies wired into Inventory Service.
• Read each line, run it locally, then change one setting and observe what breaks or improves.
• That is how teams learn in production too — small experiments, not big bang rewrites.

Try it yourself

1. Open or create the ShopNest project area for Inventory Service.
2. Apply the Failover Strategies pattern from the lesson example.
3. Run dotnet build && dotnet run (or docker compose up when the lesson uses containers).
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

Failover Strategies connects to Inventory Service in ShopNest Cloud-Native. Practice by editing the example yourself — do not only read. Move on when you can explain this topic in your own words without looking.

Real-world: HDFC-style fund transfer

Transfer, ledger, fraud check, and SMS run as separate services with idempotency keys. Saga compensates if fraud blocks after debit.

Outcome: Salary-day load handled without duplicate debits or shared-database locks.