VB.NET

Get a REST Response Header by Name

Demonstrates Rest.ResponseHdrByName, which returns the value of a response header field by name. Header field names are case-insensitive.

Background. Response headers are available after ReadResponseHeader has read the status line and headers. Lookup by name is convenient when a specific header, such as Content-Type, is needed.

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VB.NET

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


'  Return the value of a response header field by name.  Header field names are case-insensitive.
Dim contentType As String = rest.ResponseHdrByName("Content-Type")
If (rest.LastMethodSuccess = False) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Debug.WriteLine("Content-Type: " & contentType)