public async Task <IHttpActionResult> Get(string street)
{
if (string.IsNullOrEmpty(street))
{
return(BadRequest());
}
int minCharacterCount = Convert.ToInt32(ConfigurationManager.AppSettings["MinimumCharacterCount"]);
if (street.Count() <= minCharacterCount)
{
return(Ok(new AddressCandidatesReturnResult()));
}
string encodedAddress = System.Web.HttpUtility.UrlEncode(street);
var service = new AddressCandidatesServiceClient();
service.AddressCandidatesApiUrl = ConfigurationManager.AppSettings["AddressCandidatesApiUrl"];
HttpStatusCode[] httpStatusCodesWorthRetrying =
{
HttpStatusCode.RequestTimeout, // 408
HttpStatusCode.InternalServerError, // 500
HttpStatusCode.BadGateway, // 502
HttpStatusCode.ServiceUnavailable, // 503
HttpStatusCode.GatewayTimeout // 504
};
var retryPolicy = Policy
.HandleResult <AddressCandidatesReturnResult>(r => httpStatusCodesWorthRetrying.Contains(r.HttpResponseStatusCode))
.OrResult(r => r == null)
.RetryAsync(3);
var results = await retryPolicy.ExecuteAsync(async() => await GetResultFromFindAddressCandidates(encodedAddress, service));
if (results == null)
{
var response = new HttpResponseMessage(HttpStatusCode.NotFound)
{
Content = new StringContent(string.Format("No record found for {0}", street)),
ReasonPhrase = "Address Not Found"
};
throw new HttpResponseException(response);
}
if (results.HttpResponseStatusCode != HttpStatusCode.OK)
{
throw new HttpResponseException(results.HttpResponseStatusCode);
}
return(Ok(results));
}
private async Task <AddressCandidatesReturnResult> GetResultFromFindAddressCandidates(string encodedAddress, AddressCandidatesServiceClient service)
{
return(await service.GetAsync(encodedAddress));
}
