VBScript

Send a Staged Multipart REST Request

Demonstrates Rest.SendReqMultipart, which sends a multipart request using the parts configured on the object, then reads the response in separate steps.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

Chilkat VBScript Downloads

Download Chilkat for VBScript

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

'  Configure one multipart part before sending.
rest.PartSelector = "1"
success = rest.AddHeader("Content-Type","text/plain")
success = rest.AddHeader("Content-Disposition","form-data; name=""field1""")
success = rest.SetMultipartBodyString("value1")
If (success = 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

'  Send the multipart request using the configured parts.
success = rest.SendReqMultipart("POST","/api/upload")
If (success = 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

'  After sending, read the response status line and header fields.  The return value is the HTTP
'  status code, or -1 if no response was received.
statusCode = rest.ReadResponseHeader()
If (statusCode < 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Response status code: " & statusCode)

'  Read the response body as text.
responseBody = rest.ReadRespBodyString()
If (rest.LastMethodSuccess = 0) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine(responseBody)

outFile.Close