Chilkat Examples

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Visual Basic 6.0 Examples

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(Visual Basic 6.0) Google Drive Multipart Upload String

Demonstrates a file upload to Google Drive where the contents of the file are contained in a string variable.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

'  This example will upload a file to Google Drive.
Dim success As Long
success = 1

'  It requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

Dim gAuth As New ChilkatAuthGoogle
gAuth.Scope = "https://www.googleapis.com/auth/drive"
gAuth.SubEmailAddress = "some.user@example.com"
gAuth.ExpireNumSeconds = 3600

'  Obtain an access token as shown in one of the following examples:
'  See Get Access Token using a Service Account JSON Key
'  See Get Access Token using a P12 File

Dim rest As New ChilkatRest

'  Connect using TLS.
Dim bAutoReconnect As Long
bAutoReconnect = 1
success = rest.Connect("www.googleapis.com",443,1,bAutoReconnect)

'  Provide the authentication credentials (i.e. the access key)
success = rest.SetAuthGoogle(gAuth)

'  A multipart upload to Google Drive needs a multipart/related Content-Type
success = rest.AddHeader("Content-Type","multipart/related")

'  Specify each part of the request.

'  The 1st part is JSON with information about the file.
rest.PartSelector = "1"
success = rest.AddHeader("Content-Type","application/json; charset=UTF-8")

Dim json As New ChilkatJsonObject
success = json.AddStringAt(-1,"title","helloWorld.txt")
success = json.AddStringAt(-1,"description","A simple text file that says Hello World.")
success = json.AddStringAt(-1,"mimeType","text/plain")
success = rest.SetMultipartBodyString(json.Emit())

'  The 2nd part is the file content.
'  In this case, we'll upload a simple text file containing "Hello World!"
rest.PartSelector = "2"
success = rest.AddHeader("Content-Type","text/plain")
success = rest.SetMultipartBodyString("Hello World!")

'  POST https://www.googleapis.com/upload/drive/v2/files
Dim jsonResponse As String
jsonResponse = rest.FullRequestMultipart("POST","/upload/drive/v2/files?uploadType=multipart")
If (rest.LastMethodSuccess <> 1) Then
    Text1.Text = Text1.Text & rest.LastErrorText & vbCrLf
    Exit Sub
End If

'  Show the JSON response.
Text1.Text = Text1.Text & "Response Status Code: " & rest.ResponseStatusCode & vbCrLf
Text1.Text = Text1.Text & "Json Response: " & jsonResponse & vbCrLf

 

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