====== 4.1 VBA Grundlagen ======

Datenzugriff per VBA-Code (Excel, Access, Word).

===== HTTP-Anfrage =====

<code vb>
Function GetData(url As String) As String
    Dim http As Object
    Set http = CreateObject("MSXML2.XMLHTTP")

    http.Open "GET", url, False
    http.send

    GetData = http.responseText
End Function
</code>

===== Beispielaufruf =====

<code vb>
Sub TestGateway()
    Dim json As String
    json = GetData("http://localhost:5000/api/v1/dsn/demo/tables")
    Debug.Print json
End Sub
</code>

===== JSON parsen =====

Für JSON-Parsing empfohlen: VBA-JSON Library

<code vb>
Dim data As Object
Set data = JsonConverter.ParseJson(json)
</code>