AAD B2C IEF：如何使用 costom 策略将错误代码和消息从 REST API 传递到应用程序？

Question

I'm using custom policy to invoke a REST API to get something from database and return in claims. It works fine but I need to extend the feature to send extra error code and error message in case any exception happens. I already returned such information as requested ("status":409, "userMessage":). But I don't know where I can get it (in HTTP header/body/somewhere else?). I understand that I can return such information in another claim. But since AAD B2C provides the status code and userMessage there must be a way to use it. Could someone please enlighten me? Thanks a lot.

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Answer 1

The error message itself can't be accessed as a claim. If you want processing to continue, then return a HTTP 200 with a JSON representing the error and use preconditions to control the journey in this case.