How do I fix a 400 Bad Request error in .Net Core POST operation? Asked 6 years, 11 months ago Modified 5 years, 3 months ago Viewed 78k times How do I fix a 400 Bad Request error in .Net Core POST operation? Late last week, our Azure-based RAG chat service started returning HTTP 400 Bad Request errors.

Understanding the Context

We are running a web API on ASP.NET Core 8. Nothing in the code changed, and I have verified that our...