Automatically Recognize Invoices from Different Vendors using C#

private static void RecognizeForms()  

{  

 Console.WriteLine("Loading Templates...");  

 using TemplatesCollection templates = new TemplatesCollection.Builder()  

   .FromSourceFolder(templatesDirectory)  

   .Build();  

  

 Console.WriteLine("Creating Classifier...");  

 using TemplateClassifier classifier = new TemplateClassifier.Builder()  

   .SetTemplatesSource(templates)  

   .SetRuntimeFolder(@".\TemplateExtraction1.0\Runtimes")  

   .SetLicense([license, licenseKey])  

   .Build();  

  

 Console.WriteLine("Creating Extractor...");  

 using TemplateExtractor extractor = new TemplateExtractor.Builder()  

   .SetTemplatesSource(templates)  

   .SetRuntimeFolder(@".\TemplateExtraction1.0\Runtimes")  

   .SetLicense([license, licenseKey])  

   .Build();  

  

 Console.WriteLine("Begin recognizing forms...\n");  

 string[] formsToRecognize = Directory.GetFiles(filledFormsDirectory, "*.pdf", SearchOption.AllDirectories);  

 foreach (string form in formsToRecognize)  

 {  

   using var fileStream = new FileStream(form, FileMode.Open, FileAccess.Read, FileShare.Read);  

   var inputStream = new InputStream(fileStream);  

   Result<ClassifyResult> classifyResult = classifier.Classify(inputStream);  

   if (!classifyResult.IsSuccess)  

   {  

    Console.WriteLine("Unable to classify file...");  

   }  

   else  

   {  

    Console.WriteLine($"Form {Path.GetFileName(form)}  has been recognized as a {classifyResult.Value.ClassName}");  

     }  

}