Cloud API – Barcode Reader – VB.NET – Read Barcode From URL

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Cloud API – Barcode Reader – VB.NET – Read Barcode From URL

Cloud API – Barcode Reader – VB.NET – Read Barcode From URL

Module1.vb

Imports System.IO
Imports System.Net
Imports Newtonsoft.Json.Linq
 
Module Module1
 
    ' (!) If you are getting '(403) Forbidden' error please ensure you have set the correct API_KEY
 
    ' The authentication key (API Key).
    ' Get your own by registering at https://secure.bytescout.com/users/sign_up
    Const API_KEY As String = "***********************************"
 
    ' Direct URL of source file to search barcodes in.
    Const SourceFileURL As String = "https://s3-us-west-2.amazonaws.com/bytescout-com/files/demo-files/cloud-api/barcode-reader/sample.pdf"
    ' Comma-separated list of barcode types to search. 
    ' See valid barcode types in the documentation https://secure.bytescout.com/cloudapi.html#api-Default-barcodeReadFromUrlGet
    Const BarcodeTypes As String = "Code128,Code39,Interleaved2of5,EAN13"
    ' Comma-separated list of page indices (or ranges) to process. Leave empty for all pages. Example: '0,2-5,7-'.
    Const Pages As String = ""
 
    Sub Main()
 
        ' Create standard .NET web client instance
        Dim webClient As WebClient = New WebClient()
 
        ' Set API Key
        webClient.Headers.Add("x-api-key", API_KEY)
 
        ' Prepare URL for `Barcode Reader` API call
        Dim query As String = Uri.EscapeUriString(String.Format(
            "https://api.pdf.co/v1/barcode/read/from/url?types={0}&pages={1}&url={2}",
            BarcodeTypes,
            Pages,
            SourceFileURL))
 
        Try
            ' Execute request
            Dim response As String = webClient.DownloadString(query)
 
            ' Parse JSON response
            Dim json As JObject = JObject.Parse(response)
 
            If json("error").ToObject(Of Boolean) = False Then
                 
                ' Display found barcodes in console
                For Each token As JToken In json("barcodes")
                    Console.WriteLine("Found barcode:")
                    Console.WriteLine("  Type: " + token("TypeName").ToString())
                    Console.WriteLine("  Value: " + token("Value").ToString())
                    Console.WriteLine("  Document Page Index: " + token("Page").ToString())
                    Console.WriteLine("  Rectangle: " + token("Rect").ToString())
                    Console.WriteLine("  Confidence: " + token("Confidence").ToString())
                    Console.WriteLine()
                Next
 
            Else
                Console.WriteLine(json("message").ToString())
            End If
             
        Catch ex As WebException
            Console.WriteLine(ex.ToString())
        End Try
 
        webClient.Dispose()
 
 
        Console.WriteLine()
        Console.WriteLine("Press any key...")
        Console.ReadKey()
 
    End Sub
 
End Module

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Cloud API – Barcode Reader – VB.NET – Read Barcode From URL

Cloud API – Barcode Reader – VB.NET – Read Barcode From URL

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