Azure Document Intelligence / client.AnalyzeDocumentAsync не работает

Были обнаружены ошибки, когда метод AnalyzeDocumentAsync не возвращает ни одного поля при анализе документа из потока, хотя при анализе из URI он работает нормально. Вы можете изменить свой код, чтобы обеспечить правильное положение потока.

• Использование URL-адреса и локального пути — это два разных метода.
• Нам не следует использовать оба, если мы не хотим получать результаты как из локальных источников, так и из URL-адресов. URL-адрес должен быть действительным. Например, я использую этот пример URL-адреса и URL-адреса SAS Azure Storage Blob.

С URL-адресом:

Imports System
Imports System.IO
Imports System.Threading.Tasks
Imports Azure
Imports Azure.AI.FormRecognizer
Imports Azure.AI.FormRecognizer.DocumentAnalysis
Imports Azure.AI.FormRecognizer.Models

Module Program
    Sub Main(args As String())
        MainAsync().GetAwaiter().GetResult()
    End Sub

    Async Function MainAsync() As Task
        Dim endpoint As String = "<endpoint>" ' Replace <endpoint> with your Form Recognizer endpoint
        Dim apiKey As String = "<apiKey>" ' Replace <apiKey> with your Form Recognizer API key

        Dim client As New DocumentAnalysisClient(New Uri(endpoint), New AzureKeyCredential(apiKey))

        ' Analyzing document from URI
        Dim invoiceUri As Uri = New Uri("https://")
        Dim operation As AnalyzeDocumentOperation = Await client.AnalyzeDocumentFromUriAsync(WaitUntil.Completed, "prebuilt-invoice", invoiceUri)
        Dim result As AnalyzeResult = operation.Value

        ' Displaying results
        Console.WriteLine("Results from analyzing document from URI:")
        Console.WriteLine($"Document count: {result.Documents.Count}")
        For Each document As AnalyzedDocument In result.Documents
            Console.WriteLine($"Document of type: {document.DocumentType}")
            For Each field In document.Fields
                Console.WriteLine($"Field '{field.Key}': ")
                Console.WriteLine($"  Content: '{field.Value.Content}'")
                Console.WriteLine($"  Confidence: '{field.Value.Confidence}'")
            Next
        Next
    End Function
End Module

Выход:

Без URL-адреса из локального пути:

Imports System
Imports System.IO
Imports System.Threading.Tasks
Imports Azure
Imports Azure.AI.FormRecognizer
Imports Azure.AI.FormRecognizer.DocumentAnalysis
Imports Azure.AI.FormRecognizer.Models

Module Program
    Sub Main(args As String())
        Dim filePath As String = "C://Users//sample-1.pdf" ' Replace <filePath> with the actual path to your file

        If Not File.Exists(filePath) Then
            Console.WriteLine($"File not found: {filePath}")
            Return
        End If

        Dim endpoint As String = "<endpoint>" ' Replace <endpoint> with your Form Recognizer endpoint
        Dim apiKey As String = "<apiKey>" ' Replace <apiKey> with your Form Recognizer API key

        Dim client As New DocumentAnalysisClient(New Uri(endpoint), New AzureKeyCredential(apiKey))

        Using stream As New FileStream(filePath, FileMode.Open)
            Dim operation As AnalyzeDocumentOperation = client.AnalyzeDocumentAsync(WaitUntil.Completed, "prebuilt-invoice", stream).Result
            Dim result As AnalyzeResult = operation.Value

            ' Add your processing logic here
            ' For example, accessing the extracted data:
            For Each document As AnalyzedDocument In result.Documents
                Console.WriteLine($"Document of type: {document.DocumentType}")

                For Each field In document.Fields
                    Console.WriteLine($"Field '{field.Key}': ")
                    Console.WriteLine($"  Content: '{field.Value.Content}'")
                    Console.WriteLine($"  Confidence: '{field.Value.Confidence}'")
                Next
            Next
        End Using
    End Sub
End Module