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Null API Responses and HTTP 204 Results in ASP.NET Core
9 comments
February 24, 2020 - Maui, Hawaii
ASP.NET Core's default API handlers return an HTTP 204 response for null value results. This is meant to be a convenience feature, but if your calling API depends on a proper JSON response or an HTTP 200 result code, it can cause applications to break. In this post I'll describe why this can be a problem and how you can return proper JSON results for null values.