Xamarin PCL C# - Deserialize string to a JSONObject/JSONArray

Question

I've worked a lot with Android but today I have to work with Xamarin. I'm making a PCL class and I'm trying to create a JSON object from a string (HttpWebResponse converted into a string) for calling from an Android wrapper.

After some research I wasn't able to find anything which really answers my question.

Ultimately I want be able to just call something like this:

string value = jsonObject.get("key").getAsString();

I get a string from http response and then I want to convert it into a JSON object. When the JSON object is created, I want to extract a value like in the example. However, I'm making it in a PCL, so is it possible to do this in Xamarin/C# from a PCL?

Thank for the help and reading!

Giorgi · Accepted Answer · 2016-04-13 17:32:42Z

5

You can deserialize the string into an object using Newtonsoft.Json library:

Account account = JsonConvert.DeserializeObject<Account>(jsonFromServer);

You can also use HttpClient class instead of HttpWebRequest and automatically deserialize response into your object:

var client = new HttpClient();
var response = await client.GetAsync("/accounts");

Account account = await response.Content.ReadAsAsync<Account>();

If you server returns different StatusCode when error happens you can use HttpResponseMessage.IsSuccessStatusCode to decide which type to deserialize the response into. If not you can use var jsonObject = JObject.Parse(jsonText); and access the properties like this: jsonObject["someKey"]

You'll need Microsoft.AspNet.WebApi.Client library from Nuget

edited Apr 13, 2016 at 17:32

answered Apr 13, 2016 at 17:08

Giorgi

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1 Comment

Emixam23 Over a year ago

Thank for this fast answer ! I already saw that I can make it like you did, so maybe I didn't understand something. We are ok that I can, sometime, get an error response and then, it's not the same object as Account (if I take your code as example). So it can be either an Account object like or an Error object like? Do you understand what I mean?

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