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Idempotent APIs protect your application from duplicate requests caused by network issues or even client-side mistakes. Here’s how to create them in ASP.NET Core. When designing your APIs, you should ...

If, however, the first request times out, the client must resend the first request with the same transaction identifier to avoid idempotency (and to avoid being charged for two sales, only one of ...

I'm not asking how to detect duplicate POST requests. I'm asking if we are supposed to. According to RFC 2616 (section 9.5), POST is used to submit some sort of record/resource/data to the server ...