System.Net.Http.Json 10.0.2

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
10.0.2 2 01/13/2026
10.0.1 12 12/13/2025
10.0.0 25 11/12/2025
10.0.0-rc.2.25502.107 40 10/14/2025
10.0.0-rc.1.25451.107 50 09/09/2025
10.0.0-preview.7.25380.108 48 08/14/2025
10.0.0-preview.6.25358.103 58 07/18/2025
10.0.0-preview.5.25277.114 56 06/06/2025
10.0.0-preview.4.25258.110 58 05/17/2025
10.0.0-preview.3.25171.5 70 04/11/2025
10.0.0-preview.2.25163.2 67 04/02/2025
10.0.0-preview.1.25080.5 67 04/02/2025
9.0.12 2 01/13/2026
9.0.11 23 11/12/2025
9.0.10 35 10/14/2025
9.0.9 38 09/09/2025
9.0.8 49 08/05/2025
9.0.7 48 07/09/2025
9.0.6 58 06/12/2025
9.0.5 53 05/17/2025
9.0.4 66 04/11/2025
9.0.3 67 04/02/2025
9.0.2 74 04/02/2025
9.0.1 71 03/31/2025
9.0.0 68 11/14/2024
9.0.0-rc.2.24473.5 63 10/23/2024
9.0.0-rc.1.24431.7 72 09/19/2024
9.0.0-preview.7.24405.7 66 10/23/2024
9.0.0-preview.6.24327.7 70 10/21/2024
9.0.0-preview.5.24306.7 76 09/20/2024
9.0.0-preview.4.24266.19 78 10/21/2024
9.0.0-preview.3.24172.9 74 10/23/2024
9.0.0-preview.2.24128.5 66 10/23/2024
9.0.0-preview.1.24080.9 62 10/23/2024
8.0.1 76 10/21/2024
8.0.0 77 10/21/2024
8.0.0-rc.2.23479.6 77 10/21/2024
8.0.0-rc.1.23419.4 74 10/23/2024
8.0.0-preview.7.23375.6 75 09/20/2024
8.0.0-preview.6.23329.7 77 10/23/2024
8.0.0-preview.5.23280.8 76 09/20/2024
8.0.0-preview.4.23259.5 72 10/23/2024
8.0.0-preview.3.23174.8 70 09/20/2024
8.0.0-preview.2.23128.3 81 09/20/2024
8.0.0-preview.1.23110.8 74 10/23/2024
7.0.1 73 10/21/2024
7.0.0 61 10/21/2024
7.0.0-rc.2.22472.3 72 09/20/2024
7.0.0-rc.1.22426.10 71 10/23/2024
7.0.0-preview.7.22375.6 75 10/21/2024
7.0.0-preview.6.22324.4 69 10/23/2024
7.0.0-preview.5.22301.12 81 10/21/2024
7.0.0-preview.4.22229.4 70 10/23/2024
7.0.0-preview.3.22175.4 76 10/23/2024
7.0.0-preview.2.22152.2 73 09/20/2024
7.0.0-preview.1.22076.8 62 09/20/2024
6.0.2 73 11/14/2024
6.0.1 68 10/21/2024
6.0.0 66 10/21/2024
6.0.0-rc.2.21480.5 72 09/20/2024
6.0.0-rc.1.21451.13 67 10/23/2024
6.0.0-preview.7.21377.19 66 10/21/2024
6.0.0-preview.6.21352.12 76 10/21/2024
6.0.0-preview.5.21301.5 73 10/23/2024
6.0.0-preview.4.21253.7 72 10/23/2024
6.0.0-preview.3.21201.4 74 10/23/2024
6.0.0-preview.2.21154.6 66 10/23/2024
6.0.0-preview.1.21102.12 67 10/21/2024
5.0.0 62 09/20/2024
5.0.0-rc.2.20475.5 74 10/21/2024
5.0.0-rc.1.20451.14 70 10/23/2024
5.0.0-preview.8.20407.11 70 10/21/2024
5.0.0-preview.7.20364.11 82 10/21/2024
5.0.0-preview.6.20305.6 62 10/23/2024
5.0.0-preview.5.20278.1 73 10/23/2024
5.0.0-preview.4.20251.6 70 10/23/2024
5.0.0-preview.3.20214.6 78 09/20/2024
3.2.1 73 10/21/2024
3.2.0 71 10/21/2024
3.2.0-rc1.20217.1 62 10/21/2024
3.2.0-preview5.20210.3 72 10/21/2024
3.2.0-preview3.20175.8 76 09/20/2024