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How to customize property names and values in JSON?
This is why the JSON property name Wind in the example is not camel case. To use a custom JSON property naming policy, create a class that derives from JsonNamingPolicy and override the ConvertName method, as shown in the following example: Then set the JsonSerializerOptions.PropertyNamingPolicy property to an instance of your naming policy class:
Is the JSON property naming policy upper case?
The JSON property naming policy: Applies to serialization and deserialization. Is overridden by [JsonPropertyName] attributes. This is why the JSON property name Wind in the example is not upper case. If a property of an object to be serialized is of type Dictionary , the string keys can be converted to camel case.
How to use camel case for all JSON property names?
To use camel case for all JSON property names, set JsonSerializerOptions.PropertyNamingPolicy to JsonNamingPolicy.CamelCase, as shown in the following example: Here’s an example class to serialize and JSON output: The camel case property naming policy: Applies to serialization and deserialization. Is overridden by [JsonPropertyName] attributes.
How to change the name of a field in JSON?
System.Text.Json shall accept property names and string values only in double-quotes as per RFC 8259 specification. JsonPropertyNameAttribute helps you overriding the property name that is present in the JSON when serializing and deserializing in a simple way using attribute annotation.
Why is JSON property name wind not upper case?
Is overridden by [JsonPropertyName] attributes. This is why the JSON property name Wind in the example is not upper case. If a property of an object to be serialized is of type Dictionary , the string keys can be converted to camel case.
How to serialize enum names in JSON file?
If you deserialize a dictionary, the keys will match the JSON file even if you specify JsonNamingPolicy.CamelCase for the DictionaryKeyPolicy. By default, enums are serialized as numbers. To serialize enum names as strings, use the JsonStringEnumConverter.