CODEWITHSUNDEEP
c#asp.net-web-api
riki
riki

Reputation: 2393

How to convert a Stream into an object

How to convert a Stream into an Object.

I have a WebApi 

[HttpGet]
    public AttachmentViewModel DownloadAttachementDetailsByIds(int attachementDetaisId)
    {
        AttachmentViewModel attachment = new AttachmentViewModel
        {
            AttachmentName = "Observe",
            AttachmentType = ".c",
            AttachmentDetailsID = 123,
            AttachmentDetails = Encoding.ASCII.GetBytes("some contant"),
            AttachmentSize = 12 //some valid size
        };

        return attachment;
    }

Now I'm calling this GET method as bellow: 

 WebClient webClient = new WebClient();
 Stream stream = webClient.OpenRead(documentRepositoryApiUrl + "DocRepoApi/DownloadAttachementDetailsById?attachementDetaisId=97");

Well, my call is successful but once I get all data into my stream how can I again retrieve them all as the same AttachmentViewModel object. And if the API returns any error how to read it.

Upvotes: 2

Views: 1454

Answers (1)

Vsevolod Goloviznin
Vsevolod Goloviznin

Reputation: 12324

You can use the DownloadString method from WebClient and deserialize it into your model (by using JSON.NET for example). 

WebClient webClient = new WebClient();
var data = webClient.DownloadString(url);
var deserialized = JsonConvert.DeserializeObject<AttachmentViewModel>(data);

If an error occurs, a corresponding WebException will be thrown.

Upvotes: 4

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