I need to call a WebApi using WebClient
where have to pass an object as parameter. I have my WebApi method as similar to bellow code:
example URI: localhost:8080/Api/DocRepoApi/PostDoc
[HttpPost]
public string PostDoc (DocRepoViewModel docRepo)
{
return string.enpty;
}
and then DocRepoViewModel is:
public class DocRepoViewModel
{
public string Roles { get; set; }
public string CategoryName { get; set; }
public List<AttachmentViewModel> AttachmentInfo { get; set; }
}
AttachmentViewModel is:
public class AttachmentViewModel
{
public string AttachmentName { get; set; }
public byte[] AttachmentBytes { get; set; }
public string AttachmentType { get; set; }
}
New I need to call PostDoc
method from my MVC controller (not javascript ajax). How can I pass this specific parameter that I can make the call and get all data in my WebApi method. Can we do it by WebClient
? Or there are better way. Please help.
You could use the PostAsJsonAsync
method as follows:
static async Task RunAsync()
{
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("localhost:8080/");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
// HTTP POST
var docViewModel = new DocRepoViewModel() { CategoryName = "Foo", Roles= "role1,role2" };
var attachmentInfo = new List<AttachmentViewModel>() { AttachmentName = "Bar", AttachmentType = "Baz", AttachmentBytes = File.ReadAllBytes("c:\test.txt" };
docViewModel.AttachmentInfo = attachmentInfo;
response = await client.PostAsJsonAsync("DocRepoApi/PostDoc", docViewModel);
if (response.IsSuccessStatusCode)
{
// do stuff
}
}
}
Check out following code.
string url = "Your Url";
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
request.KeepAlive = false;
request.ContentType = "application/json";
request.Method = "POST";
var entity = new Entity(); //your custom object.
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(JsonConvert.SerializeObject(entity));
request.ContentLength = bytes.Length;
Stream data = request.GetRequestStream();
data.Write(bytes, 0, bytes.Length);
data.Close();
using (WebResponse response = request.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
string message = reader.ReadToEnd();
var responseReuslt = JsonConvert.Deserialize<YourDataContract>(message);
}
}
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