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How to handle overflow json with system.text.json?


Asked by Kamari Hayes on Dec 06, 2021 JSON



To capture extra data such as these properties, apply the [JsonExtensionData] attribute to a property of type Dictionary<string,object> or Dictionary<string,JsonElement>: The following table shows the result of deserializing the JSON shown earlier into this sample type.
Additionally,
System.Text.Json is the built-in JavaScript Object Notation (JSON) serialization library in .NET for converting from .NET object types to a JSON string, and vice versa, supporting UTF-8 text encoding. It was first added in .NET Core 3.0. A popular type in the library is JsonSerializer, which provides the highest level of functionality ...
Similarly, A converter is a class that converts an object or a value to and from JSON. The System.Text.Json namespace has built-in converters for most primitive types that map to JavaScript primitives. You can write custom converters: To override the default behavior of a built-in converter.
In respect to this,
If there is more than one property on a type with this extension data attribute, or if the property itself is not of the correct IDictionary<TKey,TValue> type, an InvalidOperationException is thrown during the first serialization or deserialization of that type. For more information, see How to handle overflow JSON with System.Text.Json.
Besides,
During deserialization, Newtonsoft.Json ignores comments in the JSON by default. The System.Text.Json default is to throw exceptions for comments because the RFC 8259 specification doesn't include them. For information about how to allow comments, see Allow comments and trailing commas.