dotnet-json-polymorphic

Configure polymorphic JSON serialization using [JsonPolymorphic] and [JsonDerivedType] attributes for type-safe inheritance hierarchies.

When to Use

• Serializing inheritance hierarchies with System.Text.Json
• Adding type discriminators for polymorphic deserialization
• Preparing polymorphic types for AOT-compatible JSON source generation
• Replacing Newtonsoft.Json TypeNameHandling with modern attributes

Requirements

• .NET 7 or higher

Steps

1. Ask scope:
   • Ask user: "Apply to entire solution or specific project?"
   • If specific project, ask which project