How to serialize-deserialize object using HTTP GetAsync method?

Question

After I upgraded the framework of web app from 4.0 to 4.6 I found that there is no more ReadAsAsync() method in HTTP protocol library, instead of ReadAsAsync() there is GetAsync(). I need to serialize my custom object using GetAsync().

The code using ReadAsAsync():

CustomResponse customResponse = client.ReadAsAsync("api/xxx", new StringContent(new JavaScriptSerializer().Serialize(request), Encoding.UTF8, "application/json")).Result;

Another example based on ReadAsAsync()

CustomResponse customResponse = await Response.Content.ReadAsAsync<CustomResponse>();

How to achieve same goal using GetAsync() method ?

TTomer · Accepted Answer · 2016-08-04 15:25:37Z

4

You can use it this way: (you might want to run it on another thread to avoid waiting for response)

using (HttpClient client = new HttpClient())
{
    using (HttpResponseMessage response = await client.GetAsync(page))
    {
        using (HttpContent content = response.Content)
        {
            string contentString = await content.ReadAsStringAsync();
var myParsedObject = (MyObject)(new JavaScriptSerializer()).Deserialize(contentString ,typeof(MyObject));
        }

    }
}

edited Aug 4, 2016 at 15:25

answered Aug 4, 2016 at 14:23

TTomer

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7 Comments

Dmitry Kazakov Over a year ago

I need to serialize my custom object using GetAsync(). Your example use HttpResponseMessage, but I need to use CustomResponse object.

Geoff James Over a year ago

Why do you need to use a CustomResponse, exactly? This is how I create a Http request to an API and then just use my favourite de-serializer on the contentString - I'm pretty sure it's a "standard way" of doing it. What's different with using aCustomResponse?

Dmitry Kazakov Over a year ago

In my app I use custom objects and I want to get the response and serialize it. I would like to have just few lines like in the provided examples.

Geoff James Over a year ago

@DmitryKazakov This is exactly what de/serializers are for - the remote app (usually a WebApp/API etc.), serializes a custom object at one end, and sends the serialized string. Then, the other (your own/local app) can de-serialize this string into the same type of custom object... This is a few lines of code. I use this exact (nearly) method day-in-day-out to get responses from Web Servers, and parse out objects. Again, I don't see how using a CustomResponse would benefit you differently?

Dmitry Kazakov Over a year ago

I have the app built already. I had to upgrade framework version to add some functionality, but I do not want to refactor most of code (moreover it is not possible because few libraries are compiled and there is no source code). I just want to use GetAsync() in the same way like it was with ReadAsAsync() and serialization to keep the app working with compiled dlls.

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