internal static PassportDocumentInfo CreateFromDocumentUrl(string documentUrl)
{
var document = new PassportDocumentInfo();
document.DocumentUrl = documentUrl;
var xDoc = XDocument.Load(documentUrl);
var ns = xDoc.Root.GetDefaultNamespace();
var fieldElements = xDoc.Descendants(ns + "field").ToDictionary(xe => xe.Attribute("type").Value);
var propertyInfos = typeof(PassportDocumentInfo).GetProperties().Where(pi => pi.Name != nameof(DocumentUrl)).ToDictionary(pi => pi.Name);
foreach (var field in fieldElements)
{
var fieldName = field.Key;
if (propertyInfos.TryGetValue(fieldName, out var prop))
{
var valueElement = field.Value.Element(ns + "value");
var fieldValue = prop.PropertyType == typeof(bool)
? (object)(bool)valueElement
: (string)valueElement;
prop.SetValue(document, fieldValue);
}
}
return(document);
}
public async Task <PassportParseResult> ParsePassport(Stream passportImage)
{
var result = new PassportParseResult();
try
{
// TODO: Reusing last task's result (if exists) to spare executions during dev -to be removed in deployed
var task = ocrClient.ListTasks().LastOrDefault() ?? ocrClient.ProcessMrz(passportImage);
result.TaskId = task.Id.ToString();
while (task.IsTaskActive())
{
await ThreadTask.Delay(1000);
task = ocrClient.GetTaskStatus(task.Id);
}
// Sample response file content: /SampleResponse/OcrMrzTaskDocument.xml
var documentUrl = task.DownloadUrls.Single();
result.PassportDocument = PassportDocumentInfo.CreateFromDocumentUrl(documentUrl);
}
catch (Exception ex)
{
result.SetError(ex);
}
return(result);
}