public async Task AnalyzeReceiptOCRAsync()
{
try
{
if (this.ImageUrl != null)
{
this.ReceiptOcrResult = await ReceiptOCRHelper.GetReceiptOCRResult(this.ImageUrl);
}
else if (this.GetImageStreamCallback != null)
{
this.ReceiptOcrResult = await ReceiptOCRHelper.GetReceiptOCRResult(await this.GetImageStreamCallback());
}
ResolveWordsInReceiptFields();
}
catch (Exception)
{
this.ReceiptOcrResult = new AnalyzeResultResponse();
}
}
private async Task <AnalyzeFormResult> GetResultFromResponse(HttpResponseMessage response)
{
// Process operation
if (response.Headers.Contains(this.HEADER_OPERATION_LOCATION_KEY) == false)
{
throw new InvalidOperationException("No operation-location value returned from initial request.");
}
Uri locationUri = new Uri(response.Headers.GetValues(this.HEADER_OPERATION_LOCATION_KEY).First());
var opResult = new AnalyzeResultResponse();
int i = 0;
while (i++ < RETRY_COUNT)
{
// Get the operation result
opResult = await HttpClientUtility.GetAsync <AnalyzeResultResponse>(locationUri, this.RequestHeaders);
// Wait if operation is running or has not started
if (opResult.Status == "notStarted" || opResult.Status == "running")
{
await Task.Delay(RETRY_DELAY);
}
else
{
break;
}
}
if (opResult.Status != "succeeded")
{
throw new Exception($"Form recognition operation was not successful with status: {opResult.Status}");
}
return(opResult.AnalyzeResult);
}