(VB.NET) Egypt ITIDA Generate eReceipt UUID

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Demonstrates how to generate the eReceipt UUID for Egypt ITIDA.

Note: This example requires Chilkat v9.5.0.92 or greater.

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' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.


' Note: This example requires Chilkat v9.5.0.92 or greater.
' (In v9.5.0.92, the "itida" encoding was added to StringBuilder's Encode method.)
Dim sb As New Chilkat.StringBuilder

' Load the eReceipt JSON into a StringBuilder object.
Dim success As Boolean = sb.LoadFile("qa_data/itida/EReceipt_ex.json","utf-8")
If (success = False) Then
    Debug.WriteLine("Failed to load input file.")
    Exit Sub
End If


' Convert the contents of sb to the ITIDA canonical form.
' Always pass utf-8 for the 2nd arg.
sb.Encode("itida","utf-8")

' Get the lowercase hex encoded SHA256 hash of the canonicalized JSON
' (always use utf-8)
Dim uuid As String = sb.GetHash("sha256","hex_lower","utf-8")
Debug.WriteLine("eInvoicing UUID = " & uuid)