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Articles tagged with #system-text-json
For years the honest advice on how to migrate Newtonsoft.Json to System.Text.Json in ASP.NET Core was "wait". Two features kept teams pinned to AddNewtonsoftJson(): JSON Patch and polymorphic serializ
You called an endpoint that returns an Entity Framework Core entity, and instead of clean JSON you got a wall of red: System.Text.Json.JsonException: A possible object cycle was detected. If you are s
JSON serialization is one of those decisions that looks trivial until it isn't. Every ASP.NET Core application touches it - request bodies, API responses, configuration, event payloads, log enrichment
