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?

patridge · Accepted Answer · 2020-07-17 18:17:19Z

260

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.

edited Jul 17, 2020 at 18:17

patridge

26.6k18 gold badges91 silver badges137 bronze badges

answered Apr 24, 2015 at 9:21

agua from mars

17.5k5 gold badges71 silver badges76 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Roman Pokrovskij Over a year ago

Now AspNetCore.Mcv has no dependencies on Newtonsoft.JSON . Microsoft.AspNet.Mvc.Formatters.Json assembly used for serialization.

agua from mars Over a year ago

@RomanPokrovskij, wrong, : Microsoft.AspNetCore.Mvc.Formatters.Json has a dependency to Microsoft.AspNetCore.JsonPatch which has a dependency to Newtonsoft.Json 9.0.1 nuget.org/packages/Microsoft.AspNetCore.Mvc.Formatters.Json, nuget.org/packages/Microsoft.AspNetCore.JsonPatch

Nuno Ribeiro Over a year ago

You can also use JsonConvert.DeserializeObject<YourClass>(json) to deserialize to an specific class.

jutky · Accepted Answer · 2022-02-12 22:02:28Z

48

.net core

using System.Text.Json;

###To serialize

var jsonStr = JsonSerializer.Serialize(MyObject)

###Deserialize

var weatherForecast = JsonSerializer.Deserialize<MyObject>(jsonStr);

For more information about excluding properties and nulls check out This Microsoft site

edited Feb 12, 2022 at 22:02

jutky

3,9836 gold badges35 silver badges45 bronze badges

answered Feb 16, 2020 at 14:14

NoloMokgosi

1,72816 silver badges10 bronze badges

2 Comments

zolty13 Over a year ago

do you know how to deserialize json to dynamic type?

StingyJack Over a year ago

Be aware that System.Text.Json is a "lossy" serializer and will not include properties that are on base classes.

Collectives™ on Stack Overflow

JSON serialization/deserialization in ASP.Net Core

2 Answers 2

UPDATE ASP.Net Core 3.0

3 Comments

2 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

UPDATE ASP.Net Core 3.0

3 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related