“HttpClient” is a class for sending HTTP requests and receiving HTTP responses from a resource identified by a URI.
Here is a C# code snippet for consuming a POST api method. A custom function “apiPost” which expected a JSON string parameter for POST api.
public async Task<CServiceStatus> apiPost(string data)
{
var token = "[REQUIRED_TOKEN]"; //If Authorization Required
string BaseAddress = "[YOUR_API_ENDPOINT]";
CServiceStatus cServiceStatus = new CServiceStatus(); //Custom Class for holding response
using (var client = new HttpClient())
{
try
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
client.BaseAddress = new Uri(BaseAddress);
client.DefaultRequestHeaders.Authorization
= new AuthenticationHeaderValue("Basic", token); //If Authorization Required
var httpContent = new StringContent(data, Encoding.UTF8, "application/json");
var responseTask = client.PostAsync("", httpContent);
responseTask.Wait();
var result = responseTask.Result;
cServiceStatus.RequestStatus = result.StatusCode;
cServiceStatus.ReturnMessage = result.RequestMessage.ToString();
if (result.IsSuccessStatusCode)
{
var result_data = await result.Content.ReadAsStringAsync();
cServiceStatus.ReturnJson = JsonConvert.DeserializeObject(result_data).ToString();
}
}
catch (Exception ex)
{
cServiceStatus.RequestStatus = HttpStatusCode.ServiceUnavailable;
cServiceStatus.ReturnMessage = ex.Message;
}
}
return cServiceStatus;
}Here i have created a class “CServiceStatus” for holding the response data.
public class CServiceStatus
{
private HttpStatusCode requestStatus = HttpStatusCode.NotFound;
private string returnJson = string.Empty;
private string returnMessage = string.Empty;
public HttpStatusCode RequestStatus
{
get { return requestStatus; }
set { requestStatus = value; }
}
public string ReturnJson
{
get { return returnJson; }
set { returnJson = value; }
}
public string ReturnMessage
{
get { return returnMessage; }
set { returnMessage = value; }
}
}How to use?
String str="{"Id":"123","DateOfRegistration":"2012-10-21T00:00:00+05:30","Status":0}";
apiPost(str);