Idempotent APIs play a crucial role in maintaining the reliability and fault tolerance of applications. An operation is considered idempotent when executing it multiple times yields the same result. For instance, pressing an elevator button multiple times does not change the outcome of its trip. In scenarios like an online shopping cart, users may need to retry API calls without creating duplicate orders. This article provides insights on building idempotent APIs in ASP.NET Core, along with practical code examples for developers using Visual Studio 2022.
Idempotent APIs ensure that duplicate requests will yield one and the same result, making them robust and fault-tolerant.
In a shopping cart application, idempotent APIs prevent the duplication of orders when a user retries creating the same order.
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