(PureBasic) Egypt ITIDA Generate eReceipt UUID

See more Egypt ITIDA Examples

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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IncludeFile "CkStringBuilder.pb"

Procedure ChilkatExample()

    ; 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.)
    sb.i = CkStringBuilder::ckCreate()
    If sb.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Load the eReceipt JSON into a StringBuilder object.
    success.i = CkStringBuilder::ckLoadFile(sb,"qa_data/itida/EReceipt_ex.json","utf-8")
    If success = 0
        Debug "Failed to load input file."
        CkStringBuilder::ckDispose(sb)
        ProcedureReturn
    EndIf

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

    ; Get the lowercase hex encoded SHA256 hash of the canonicalized JSON
    ; (always use utf-8)
    uuid.s = CkStringBuilder::ckGetHash(sb,"sha256","hex_lower","utf-8")
    Debug "eInvoicing UUID = " + uuid


    CkStringBuilder::ckDispose(sb)


    ProcedureReturn
EndProcedure