JSON serialization deserialization in ASP Net Core

Question

Since there is no JavaScriptSerializer  what native implementation can be used to handle this   I noticed JsonResult and I can format data to JSON with this  but how do I deserialize   Or maybe I am missing some dependencies in project json

User · Accepted Answer

You can use Newtonsoft Json  it s a dependency of Microsoft AspNet Mvc ModelBinding which is a dependency of Microsoft AspNet Mvc  So  you don t need to add a dependency in your project json   using Newtonsoft Json      JsonConvert DeserializeObject json    Note  using a WebAPI controller you don t need to deal with JSON  UPDATE ASP Net Core 3 0 Json NET has been removed from the ASP NET Core 3 0 shared framework  You can use the new JSON serializer layers on top of the high-performance Utf8JsonReader and Utf8JsonWriter  It deserializes objects from JSON and serializes objects to JSON  Memory allocations are kept minimal and includes support for reading and writing JSON with Stream asynchronously  To get started  use the JsonSerializer class in the System Text Json Serialization namespace  See the documentation for information and samples  To use Json NET in an ASP NET Core 3 0 project   Add a package reference to Microsoft AspNetCore Mvc NewtonsoftJson Update ConfigureServices to call AddNewtonsoftJson         services AddMvc            AddNewtonsoftJson     Read Json NET support in Migrate from ASP NET Core 2 2 to 3 0 Preview 2 for more information

User · Answer

net core   using System Text Json   To serialize  var jsonStr   JsonSerializer Serialize MyObject    Deserialize  var weatherForecast   JsonSerializer Deserialize lt MyObject gt  jsonStr     For more information about excluding properties and nulls check out  This Microsoft side

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