How to deserialize JSON to .NET object using JSON.NET?

Question

I have a JSON object like the following

{
   "data": [
      {
         "id": "18128270850211_49239570772655",
         "from": {
            "name": "Someone Unimportant",
            "id": "57583427"
         }
         /* more stuff */
      }
   ]
}

I want to parse it using JSON.NET,

FacebookResponse<FacebookPost> response = JsonConvert.DeserializeObject<FacebookResponse<FacebookPost>>(json);

internal class FacebookResponse<T> where T : class
{
    public IList<T> Data { get; set; }
    public FacebookResponsePaging Paging { get; set; }
}

public class FacebookPost
{
    public string Id { get; set; }

    [JsonProperty("to.data.id")]
    public string FeedId { get; set; }

    [JsonProperty("from.id")]
    public string UserId { get; set; }

    [JsonProperty("created_time")]
    public DateTime CreatedTime { get; set; }

    [JsonProperty("updated_time")]
    public DateTime UpdatedTime { get; set; }

    public string Type { get; set; } // TODO: Type enum??

    public string Message { get; set; }
    public string Link { get; set; }
    public string Name { get; set; }
    public string Caption { get; set; }
    public string Description { get; set; }
}

Everything comes through except for the FeedId and the UserId properties. How should I be mapping these?

You need to define a "from" class to match the json data. Same thing for "to" (if it differs from "from" in structure) and "data" — Egor
– Egor, Commented Aug 17, 2012 at 20:14
If you don't like having a lot of classes around you can use structs as well. I prefer them because they are just data like the JSON. — BlargleMonster
– BlargleMonster, Commented Aug 17, 2012 at 20:29
How about dynamic obj = JsonConvert.DeserializeObject(json); var name = obj.data[0].from.name; ? — L.B
– L.B, Commented Aug 18, 2012 at 20:56

Durgaprasad Budhwani · Accepted Answer · 2012-08-17 20:30:15Z

1

public class From
{
    public string name { get; set; }
    public string id { get; set; }
}

public class Datum
{
    public string id { get; set; }
    public From from { get; set; }
}

public class FacebookPost
{
    public List<Datum> data { get; set; }
}

internal class FacebookResponse<T> where T : class
{
    public IList<T> Data { get; set; }
    public FacebookResponsePaging Paging { get; set; }
}

FacebookResponse<FacebookPost> response = JsonConvert.DeserializeObject<FacebookResponse<FacebookPost>>(json);

Try below code :)

answered Aug 17, 2012 at 20:30

Durgaprasad Budhwani

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AD.Net · Accepted Answer · 2012-08-17 20:15:43Z

0

Use this site to get the object for .net

Then you can use JSON.Net to deserialize: ex.JsonConvert.DeserializeObject(input) iirc

answered Aug 17, 2012 at 20:15

AD.Net

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1 Comment

bevacqua Over a year ago

can't I do this directly? I was more interested in an attribute-based approach using JSON.NET features

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