VBScript

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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VBScript

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

set rest = CreateObject("Chilkat.Rest")
bTls = 1
bAutoReconnect = 1
success = rest.Connect("example.com",443,bTls,bAutoReconnect)
If (success = 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

success = rest.SendReqNoBody("GET","/api/items/123")
If (success = 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

statusCode = rest.ReadResponseHeader()
If (statusCode < 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

'  Return the value of a response header field by name.  Header field names are case-insensitive.
contentType = rest.ResponseHdrByName("Content-Type")
If (rest.LastMethodSuccess = 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

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

outFile.Close