Posting a complex object with ASP.NET WebAPI

Question

How can I use WebClient object to send a POST request like this:

public static void SaveOrUpdateEntity(string url, object data)
{
    using (var client = new WebClient())
    {
        // TODO
    }
}

where its data is a Person object.

This is controller method

[HttpPost]
public void Post([FromBody]Person person)
{
    VeranaWebService.SaveOrUpdatePerson(person);
}

and Person class

public class Person
{
    public string Name { get; set; }
    public string FirstName { get; set; }
    public DateTime? BirthDate { get; set; }
    public byte[] Photo { get; set; }
}

One way is to serialize it using newtonsoft json serialization routines. Then on the API side, if the input is of type Person the binding engine reserializes it. — JWP
– JWP, Commented Jun 7, 2016 at 10:27
I would use HttpClient .. I personally find it easier to use. And yes, serialize your object using NewtonSoft.Json. — Efrain
– Efrain, Commented Jun 7, 2016 at 10:33

Marcus Höglund · Accepted Answer · 2016-06-07 10:44:54Z

6

You can use Newtonsoft.Json which will help you serialize your data to a json object. It can be used like this

using Newtonsoft.Json;

public static void SaveOrUpdateEntity(string url, object data)
{    
    var dataString = JsonConvert.SerializeObject(data);

    using (var client = new WebClient())
    {
        client.Headers.Add(HttpRequestHeader.ContentType, "application/json");
        response = client.UploadString(new Uri(url), "POST", dataString);
    }
}

To learn more about the newtonsoft library, read here

edited Jun 7, 2016 at 10:44

answered Jun 7, 2016 at 10:32

Marcus Höglund

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