/// <summary>
/// Posts file's content to specified uri
/// </summary>
/// <param name="partialUri">Uri part after server address/fqdn and port</param>
/// <param name="parameters">Request parameters after `?`</param>
/// <param name="headers">Request headers</param>
/// <param name="filePath">File to post</param>
/// <param name="authentificationProvider">Authentification provider</param>
/// <param name="cancellationToken">Task cancellation token</param>
/// <returns></returns>
public static Task <RequestResult <string> > PostFileAsync(string partialUri,
IDictionary <string, string> parameters = null,
IDictionary <string, string> headers = null,
string filePath = null,
Delegates.AuthentificationDataAdder authentificationProvider = null,
CancellationToken cancellationToken = default(CancellationToken))
=> RegularClient.PostFileAsync(partialUri,
parameters,
headers,
filePath,
authentificationProvider,
cancellationToken);