Enumerate REST Response Header Names

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Demonstrates Rest.ResponseHdrName, which returns the field name of the response header at a zero-based index. The example enumerates all headers, pairing each name with its value.

Dim success As Boolean = False

Dim rest As New Chilkat.Rest
Dim bTls As Boolean = True
Dim bAutoReconnect As Boolean = True
success = rest.Connect("example.com",443,bTls,bAutoReconnect)
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


success = rest.SendReqNoBody("GET","/api/items/123")
If (success = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


Dim statusCode As Integer = rest.ReadResponseHeader()
If (statusCode < 0) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


'  Enumerate the response header fields by zero-based index.  ResponseHdrName returns the field name
'  and ResponseHdrValue returns the value at the same index.
Dim numHeaders As Integer = rest.NumResponseHeaders
Dim i As Integer
For i = 0 To numHeaders - 1
    Dim name As String = rest.ResponseHdrName(i)
    If (rest.LastMethodSuccess = False) Then
        Debug.WriteLine(rest.LastErrorText)
        Exit Sub
    End If

    Dim value As String = rest.ResponseHdrValue(i)
    If (rest.LastMethodSuccess = False) Then
        Debug.WriteLine(rest.LastErrorText)
        Exit Sub
    End If

    Debug.WriteLine(name & ": " & value)
Next