JsonTextWriter

JsonTextWriter is a class found in the Newtonsoft.Json library, a popular .NET JSON framework. Its primary purpose is to provide a way to programmatically write JSON text. Unlike higher-level abstractions that might create entire JSON objects or arrays at once, JsonTextWriter operates at a lower level, allowing for fine-grained control over the JSON output.

It allows developers to write JSON tokens such as properties, values, array elements, and object delimiters sequentially. This is useful for constructing JSON strings piece by piece, especially when dealing with large or dynamically generated JSON structures. The writer handles the correct formatting, ensuring that quotes, commas, and brackets are placed appropriately according to JSON syntax rules.

Commonly used methods include WriteStartObject, WriteEndObject, WritePropertyName, WriteValue, WriteStartArray, and WriteEndArray. By calling these methods in the correct order, developers can build complex JSON documents. The JsonTextWriter is often used in conjunction with other parts of the Newtonsoft.Json library for serialization and deserialization tasks. It can also be used directly when manual JSON construction is required, offering efficiency and flexibility.