Visual Basic 6.0

Set a Multipart Part Body from a StringBuilder

Demonstrates Rest.SetMultipartBodySb, which sets the text body of the selected multipart part from a StringBuilder.

Background. A multipart request is assembled part by part: the part selector chooses the part being built, header fields describe it, and a SetMultipartBody method supplies its content. The request is then sent with a multipart send or full-request method.

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Visual Basic 6.0

Dim success As Long
success = 0

Dim rest As New ChilkatRest
Dim bTls As Long
bTls = 1
Dim bAutoReconnect As Long
bAutoReconnect = 1
success = rest.Connect("example.com",443,bTls,bAutoReconnect)
If (success = 0) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

'  Select the multipart part to build, and set its header fields.
rest.PartSelector = "1"
success = rest.AddHeader("Content-Disposition","form-data; name=""field1""")
success = rest.AddHeader("Content-Type","application/json")

'  Set the text body of the selected part from a StringBuilder.
Dim sbBody As New ChilkatStringBuilder
success = sbBody.Append("{ ""key"": ""value"" }")
success = rest.SetMultipartBodySb(sbBody)
If (success = 0) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

Dim responseText As String
responseText = rest.FullRequestMultipart("POST","/api/upload")
If (rest.LastMethodSuccess = 0) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

Debug.Print responseText