System.Net.Http.Json 10.0.0-rc.2.25502.107

About

Provides extension methods for System.Net.Http.HttpClient and System.Net.Http.HttpContent that facilitate serialization and deserialization of HTTP requests using System.Text.Json.

Key Features

  • Extension methods for deserializing HTTP response JSON bodies.
  • Extension methods for serializing HTTP request JSON bodies.
  • Extension methods for deserializing JSON from HttpContent instances.

How to Use

using System.Net.Http.Json;

using var client = new HttpClient();

// Get the list of all books
Book[] books = await client.GetFromJsonAsync<Book[]>("https://api.contoso.com/books");

// Send a POST request to add a new book
var book = new Book(id: 42, "Title", "Author", publishedYear: 2023);
HttpResponseMessage response = await client.PostAsJsonAsync($"https://api.contoso.com/books/{book.id}", book);

if (response.IsSuccessStatusCode)
    Console.WriteLine("Book added successfully.");
else
    Console.WriteLine($"HTTP request failed with status code: {response.StatusCode}");

public record Book(int id, string title, string author, int publishedYear);

Main Types

The main types provided by this library are:

  • HttpClientJsonExtensions
  • HttpContentJsonExtensions

Additional Documentation

Feedback & Contributing

System.Net.Http.Json is released as open source under the MIT license. Bug reports and contributions are welcome at the GitHub repository.

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.NET Framework 4.6.2

.NET Standard 2.0

.NET 10.0

  • No dependencies.

.NET 8.0

.NET 9.0

Version Downloads Last updated
10.0.0-rc.2.25502.107 7 10/14/2025
10.0.0-rc.1.25451.107 19 09/09/2025
10.0.0-preview.7.25380.108 18 08/14/2025
10.0.0-preview.6.25358.103 22 07/18/2025
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9.0.0-rc.2.24473.5 34 10/23/2024
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9.0.0-preview.7.24405.7 37 10/23/2024
9.0.0-preview.6.24327.7 44 10/21/2024
9.0.0-preview.5.24306.7 41 09/20/2024
9.0.0-preview.4.24266.19 43 10/21/2024
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8.0.1 43 10/21/2024
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8.0.0-rc.2.23479.6 38 10/21/2024
8.0.0-rc.1.23419.4 40 10/23/2024
8.0.0-preview.7.23375.6 40 09/20/2024
8.0.0-preview.6.23329.7 44 10/23/2024
8.0.0-preview.5.23280.8 45 09/20/2024
8.0.0-preview.4.23259.5 43 10/23/2024
8.0.0-preview.3.23174.8 41 09/20/2024
8.0.0-preview.2.23128.3 36 09/20/2024
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7.0.1 46 10/21/2024
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7.0.0-rc.2.22472.3 38 09/20/2024
7.0.0-rc.1.22426.10 38 10/23/2024
7.0.0-preview.7.22375.6 38 10/21/2024
7.0.0-preview.6.22324.4 41 10/23/2024
7.0.0-preview.5.22301.12 39 10/21/2024
7.0.0-preview.4.22229.4 37 10/23/2024
7.0.0-preview.3.22175.4 39 10/23/2024
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6.0.2 40 11/14/2024
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6.0.0-rc.2.21480.5 38 09/20/2024
6.0.0-rc.1.21451.13 41 10/23/2024
6.0.0-preview.7.21377.19 35 10/21/2024
6.0.0-preview.6.21352.12 44 10/21/2024
6.0.0-preview.5.21301.5 44 10/23/2024
6.0.0-preview.4.21253.7 42 10/23/2024
6.0.0-preview.3.21201.4 44 10/23/2024
6.0.0-preview.2.21154.6 40 10/23/2024
6.0.0-preview.1.21102.12 38 10/21/2024
5.0.0 34 09/20/2024
5.0.0-rc.2.20475.5 38 10/21/2024
5.0.0-rc.1.20451.14 39 10/23/2024
5.0.0-preview.8.20407.11 42 10/21/2024
5.0.0-preview.7.20364.11 41 10/21/2024
5.0.0-preview.6.20305.6 36 10/23/2024
5.0.0-preview.5.20278.1 37 10/23/2024
5.0.0-preview.4.20251.6 38 10/23/2024
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3.2.1 42 10/21/2024
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