private string ConvertToJson(BodyParameters parameters)
{
var jsonSettings = CreateJsonSerializerSettings();
var jsonString = JsonConvert.SerializeObject(parameters, jsonSettings);
return(jsonString);
}
/// <summary>
/// Executes given HTTP method and saves returned data to file. Method is capable of downloading large files.
/// Data is not stored in memory, but is written directly to file on disk.
/// </summary>
/// <param name="targetFile">Returned data will be written to this file.</param>
/// <param name="url">Full resource URL.</param>
/// <param name="method">HTTP method.</param>
/// <param name="cancellationToken"></param>
/// <param name="queryParameters">URL parameters.</param>
/// <param name="bodyParameters">Parameters, that will be sent in body of the request.</param>
/// <returns></returns>
protected virtual async Task <ApiCallResponse> DownloadToFileAsync(string targetFile, Uri url, HttpMethod method,
CancellationToken cancellationToken, QueryParameters queryParameters = null, BodyParameters bodyParameters = null)
{
using (var requestMessage = ConstructRequestMessage(method, url, queryParameters, bodyParameters))
{
using (var response = await _client.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead,
cancellationToken))
{
var apiCallResponse = await ProcessResponseAsync(response, false);
using (Stream streamToReadFrom = await response.Content.ReadAsStreamAsync())
{
using (Stream streamToWriteTo = File.Open(targetFile, FileMode.Create))
{
await streamToReadFrom.CopyToAsync(streamToWriteTo);
return(apiCallResponse);
}
}
}
}
}
/// <summary>
/// Executes given HTTP method. Does not expect any response content.
/// </summary>
/// <param name="url">Full resource URL.</param>
/// <param name="method">HTTP method.</param>
/// <param name="cancellationToken"></param>
/// <param name="queryParameters">URL parameters.</param>
/// <param name="bodyParameters">Parameters, that will be sent in body of the request.</param>
/// <returns></returns>
protected virtual async Task <ApiCallResponse> SendAsync(Uri url, HttpMethod method, CancellationToken cancellationToken,
QueryParameters queryParameters = null, BodyParameters bodyParameters = null)
{
using (var requestMessage = ConstructRequestMessage(method, url, queryParameters, bodyParameters))
{
using (var response = await _client.SendAsync(requestMessage, cancellationToken))
{
return(await ProcessResponseAsync(response));
}
}
}
private HttpRequestMessage ConstructRequestMessage(HttpMethod method, Uri url, QueryParameters queryParameters, BodyParameters bodyParameters)
{
var urlString = ConstructUrlString(url, queryParameters);
var request = new HttpRequestMessage(method, urlString);
var hasBody = bodyParameters != null && bodyParameters.GetParameters().Any();
if (hasBody)
{
var jsonString = ConvertToJson(bodyParameters);
request.Content = new StringContent(jsonString, Encoding.UTF8, "application/json");
}
return(request);
}
