/// <summary>
/// Async send the request to the server
/// </summary>
/// <returns>Async</returns>
public async Task <string> SendAsync(DimeloRequest request)
{
// only create HttpClient once for performance
if (_client == null)
{
_client = new HttpClient();
}
// creating the request
StringContent content;
try
{
// construct the json content first
string json = request.GetJson();
content = new StringContent(json, Encoding.UTF8, MEDIATYPE_JSON);
// compute the signature
string signature = SigningHelper.Sign(_accessToken, json);
// set the necessary header(s)
_client.DefaultRequestHeaders.Clear();
_client.DefaultRequestHeaders.Add(SIGNATURE_ATTRIBUTE, signature);
}
catch (Exception ex)
{
throw new ApplicationException($"Error setting the request to send", ex);
}
// send the request
HttpResponseMessage response = null;
try
{
response = await _client.PostAsync(_endpointUrl, content);
}
catch (Exception ex)
{
throw new ApplicationException($"Error sending the request to {_endpointUrl}", ex);
}
// handle the response
try
{
string responseContent = await response.Content.ReadAsStringAsync();
// unsuccesful statuscodes are thrown as exception
if (!response.IsSuccessStatusCode)
{
throw new HttpRequestException($"Sending the request return HTTP status code {(int)response.StatusCode} {response.StatusCode} {responseContent}");
}
return(responseContent);
}
catch (Exception ex)
{
throw new ApplicationException($"Error processing the response", ex);
}
}
