JsonDocument Represents the structure of a JSON value in a lightweight, read-only form.

 JsonException Defines a custom exception object that is thrown when invalid JSON text is encountered, when the defined maximum depth is passed, or the JSON text is not compatible with the type of a property on an object.

 JsonSerializerOptions Provides options to be used with .

 Utf8JsonWriter Provides a high-performance API for forward-only, non-cached writing of UTF-8 encoded JSON text.

 JsonDocumentOptions Provides the ability for the user to define custom behavior when parsing JSON to create a .

 JsonElement Represents a specific JSON value within a .

 JsonEncodedText Provides a way to transform UTF-8 or UTF-16 encoded text into a form that is suitable for JSON.

 JsonProperty Represents a single property for a JSON object.

 JsonReaderOptions Provides the ability for the user to define custom behavior when reading JSON.

 JsonReaderState Defines an opaque type that holds and saves all the relevant state information which must be provided to the to continue reading after processing incomplete data. This type is required to support reentrancy when reading incomplete data, and to continue reading once more data is available. Unlike the , which is a ref struct, this type can survive across async/await boundaries and hence this type is required to provide support for reading in more data asynchronously before continuing with a new instance of the .

 JsonWriterOptions Provides the ability for the user to define custom behavior when writing JSON using the . By default, the JSON is written without any indentation or extra white space. Also, the will throw an exception if the user attempts to write structurally invalid JSON.

 Utf8JsonReader Provides a high-performance API for forward-only, read-only access to the UTF-8 encoded JSON text. It processes the text sequentially with no caching and adheres strictly to the JSON RFC by default (https://tools.ietf.org/html/rfc8259). When it encounters invalid JSON, it throws a JsonException with basic error information like line number and byte position on the line. Since this type is a ref struct, it does not directly support async. However, it does provide support for reentrancy to read incomplete data, and continue reading once more data is presented. To be able to set max depth while reading OR allow skipping comments, create an instance of and pass that in to the reader.

 JsonCommentHandling This enum defines the various ways the can deal with comments.

 JsonSerializerDefaults Signifies what default options are used by .

 JsonTokenType This enum defines the various JSON tokens that make up a JSON text and is used by the when moving from one token to the next. The starts at 'None' by default. The 'Comment' enum value is only ever reached in a specific mode and is not reachable by default.

 JsonValueKind Specifies the data type of a JSON value.

 JsonSerializer Provides functionality to serialize objects or value types to JSON and deserialize JSON into objects or value types.

 JsonNamingPolicy Determines the naming policy used to convert a string-based name to another format, such as a camel-casing format.