/// <summary>
/// Calls the API with the specified resource and method. Retries 3 times on "Unable to connect to the remote server"
/// </summary>
/// <param name="resource">The target resource.</param>
/// <param name="method">The HTTP method to perform on the target resource.</param>
/// <param name="isUsingLoadIds">When true, the target resource is identified by a client specified LoadId.</param>
/// <param name="data">The data body for POST and PUT methods.</param>
/// <param name="callParams">Paramater string to be added to the end of the API call.</param>
/// <returns>The response string from the API call.</returns>
public string CallWithRetry(
string resource,
string method,
bool isUsingLoadIds = false,
IApiEntity data = null,
string callParams = null)
{
var exceptions = new List <Exception>();
int doTries = 5;
for (int retry = 0; retry < doTries; retry++)
{
try
{
return(Call(resource, method, isUsingLoadIds, data, callParams));
}
catch (WebException ex)
{
// If something other than cannot reach server, throw immediately
if (!ex.Message.Contains("Unable to connect to the remote server"))
{
throw;
}
exceptions.Add(ex);
// Pause for increasingly long time (2, 4, 8, 16ish seconds, etc)
Thread.Sleep(new Random().Next(900, 1100) * (retry + 1));
}
}
throw new AggregateException(exceptions);
}
/// <summary>
/// Calls the API with the specified resource and method.
/// </summary>
/// <param name="resource">The target resource.</param>
/// <param name="method">The HTTP method to perform on the target resource.</param>
/// <param name="isUsingLoadIds">When true, the target resource is identified by a client specified LoadId.</param>
/// <param name="data">The data body for POST and PUT methods.</param>
/// <param name="callParams">Paramater string to be added to the end of the API call.</param>
/// <returns>The response string from the API call.</returns>
public string Call(
string resource,
string method,
bool isUsingLoadIds = false,
IApiEntity data = null,
string callParams = null)
{
// Remove whitespace, get rid of leading ? or &
callParams = string.IsNullOrWhiteSpace(callParams)
? ""
: new Regex(@"\s+").Replace(callParams, "").TrimStart('?', '&').Insert(0, "&");
// Add the 'app' paramater if we have it
if (!string.IsNullOrWhiteSpace(App))
{
callParams += string.Concat("&app=", App);
}
var requestUri = string.Format("{0}/{1}?apikey={2}&isloadid={3}{4}", Uri, resource, ApiKey, isUsingLoadIds, callParams);
var req = WebRequest.Create(requestUri) as HttpWebRequest;
req.KeepAlive = false;
req.ContentType = "application/" + _interfaceFormat.ToString().ToLower();
req.Method = method.ToUpper();
if (method == "POST" || method == "PUT")
{
var json = data != null
? data.ToString(_interfaceFormat)
: null;
var buffer = !string.IsNullOrEmpty(json)
? Encoding.UTF8.GetBytes(json)
: new byte[] { };
req.ContentLength = buffer.Length;
using (Stream postData = req.GetRequestStream())
postData.Write(buffer, 0, buffer.Length);
}
try
{
using (var resp = req.GetResponse() as HttpWebResponse)
using (var respStream = new StreamReader(resp.GetResponseStream()))
return(respStream.ReadToEnd());
}
catch (WebException ex)
{
var response = ex.Response as HttpWebResponse;
if (response != null)
{
throw new HttpResourceFaultException(response.StatusCode, response.StatusDescription, ex);
}
throw;
}
}
/// <summary>
/// Calls the API with the specified resource and method.
/// </summary>
/// <param name="resource">The target resource.</param>
/// <param name="method">The HTTP method to perform on the target resource.</param>
/// <param name="isUsingLoadIds">When true, the target resource is identified by a client specified LoadId.</param>
/// <param name="data">The data body for POST and PUT methods.</param>
/// <param name="callParams">Paramater string to be added to the end of the API call.</param>
/// <returns>The response string from the API call.</returns>
public string Call(
string resource,
string method,
bool isUsingLoadIds = false,
IApiEntity data = null,
string callParams = null)
{
// Remove whitespace, get rid of leading ? or &
callParams = string.IsNullOrWhiteSpace(callParams)
? ""
: new Regex(@"\s+").Replace(callParams, "").TrimStart('?', '&').Insert(0, "&");
// Add the 'app' paramater if we have it
if (!string.IsNullOrWhiteSpace(App))
callParams += string.Concat("&app=", App);
var requestUri = string.Format("{0}/{1}?apikey={2}&isloadid={3}{4}", Uri, resource, ApiKey, isUsingLoadIds, callParams);
var req = WebRequest.Create(requestUri) as HttpWebRequest;
req.KeepAlive = false;
req.ContentType = "application/" + _interfaceFormat.ToString().ToLower();
req.Method = method.ToUpper();
if (method == "POST" || method == "PUT")
{
var json = data != null
? data.ToString(_interfaceFormat)
: null;
var buffer = !string.IsNullOrEmpty(json)
? Encoding.UTF8.GetBytes(json)
: new byte[] { };
req.ContentLength = buffer.Length;
using (Stream postData = req.GetRequestStream())
postData.Write(buffer, 0, buffer.Length);
}
try
{
using (var resp = req.GetResponse() as HttpWebResponse)
using (var respStream = new StreamReader(resp.GetResponseStream()))
return respStream.ReadToEnd();
}
catch (WebException ex)
{
var response = ex.Response as HttpWebResponse;
if (response != null)
throw new HttpResourceFaultException(response.StatusCode, response.StatusDescription, ex);
throw;
}
}
/// <summary>
/// Calls the API with the specified resource and method. Retries 3 times on "Unable to connect to the remote server"
/// </summary>
/// <param name="resource">The target resource.</param>
/// <param name="method">The HTTP method to perform on the target resource.</param>
/// <param name="isUsingLoadIds">When true, the target resource is identified by a client specified LoadId.</param>
/// <param name="data">The data body for POST and PUT methods.</param>
/// <param name="callParams">Paramater string to be added to the end of the API call.</param>
/// <returns>The response string from the API call.</returns>
public string CallWithRetry(
string resource,
string method,
bool isUsingLoadIds = false,
IApiEntity data = null,
string callParams = null)
{
var exceptions = new List<Exception>();
int doTries = 5;
for (int retry = 0; retry < doTries; retry++)
try
{
return Call(resource, method, isUsingLoadIds, data, callParams);
}
catch (WebException ex)
{
// If something other than cannot reach server, throw immediately
if (!ex.Message.Contains("Unable to connect to the remote server"))
throw;
exceptions.Add(ex);
// Pause for increasingly long time (2, 4, 8, 16ish seconds, etc)
Thread.Sleep(new Random().Next(900, 1100) * (retry + 1));
}
throw new AggregateException(exceptions);
}
