(VB.NET) Delete All Files

Permanently deletes all files owned by the user without moving it to the trash.

This example works by first getting a list of all fileIds, and then iterating over the list to delete each file.

See Google Drive Files delete for more information.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

Dim success As Boolean = True

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

' This example uses a previously obtained access token having permission for the 
' Google Drive scope.

Dim gAuth As New Chilkat.AuthGoogle
gAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN"

Dim rest As New Chilkat.Rest

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

' Provide the authentication credentials (i.e. the access token)
rest.SetAuthGoogle(gAuth)

' Get 10 results per page for testing.  (The default page size is 100, with a max of 1000.
rest.AddQueryParam("pageSize","10")

Dim json As New Chilkat.JsonObject
Dim i As Integer
Dim numFiles As Integer

' Send the request for the 1st page.
Dim jsonResponse As String = rest.FullRequestNoBody("GET","/drive/v3/files")

Dim pageNumber As Integer = 1
Dim pageToken As String
Dim bContinueLoop As Boolean = rest.LastMethodSuccess And (rest.ResponseStatusCode = 200)

Dim fileId As String
Dim saFileIds As New Chilkat.StringArray

While bContinueLoop = True

    Debug.WriteLine("---- Page " & pageNumber & " ----")
    json.Load(jsonResponse)

    numFiles = json.SizeOfArray("files")
    i = 0
    While i < numFiles
        json.I = i
        fileId = json.StringOf("files[i].id")
        Debug.WriteLine("name: " & json.StringOf("files[i].name"))
        Debug.WriteLine("id: " & fileId)
        saFileIds.Append(fileId)
        i = i + 1
    End While

    ' Get the next page of files.
    ' If the "nextPageToken" is present in the JSON response, then use it in the "pageToken" parameter
    ' for the next request.   If no "nextPageToken" was present, then this was the last page of files.
    pageToken = json.StringOf("nextPageToken")
    bContinueLoop = False
    Dim bHasMorePages As Boolean = json.LastMethodSuccess
    If (bHasMorePages = True) Then
        rest.ClearAllQueryParams()
        rest.AddQueryParam("pageSize","10")
        rest.AddQueryParam("pageToken",pageToken)
        jsonResponse = rest.FullRequestNoBody("GET","/drive/v3/files")
        bContinueLoop = rest.LastMethodSuccess And (rest.ResponseStatusCode = 200)
        pageNumber = pageNumber + 1
    End If


End While

' Before actually deleting, check for errors...
If (rest.LastMethodSuccess <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' A successful response will have a status code equal to 200.
If (rest.ResponseStatusCode <> 200) Then
    Debug.WriteLine("response status code = " & rest.ResponseStatusCode)
    Debug.WriteLine("response status text = " & rest.ResponseStatusText)
    Debug.WriteLine("response header: " & rest.ResponseHeader)
    Debug.WriteLine("response JSON: " & jsonResponse)
    Exit Sub
End If


' OK, we have the full list of files.  Delete each..
Dim sbPath As New Chilkat.StringBuilder
numFiles = saFileIds.Count
i = 0
While i < numFiles
    fileId = saFileIds.GetString(i)

    rest.ClearAllQueryParams()

    sbPath.Clear()
    sbPath.Append("/drive/v3/files/")
    sbPath.Append(fileId)

    jsonResponse = rest.FullRequestNoBody("DELETE",sbPath.GetAsString())
    If (rest.LastMethodSuccess <> True) Then
        Debug.WriteLine(rest.LastErrorText)
        Exit Sub
    End If


    ' A successful response will have a status code equal to 204 and the response body is empty.
    ' (If not successful, then there should be a JSON response body with information..)
    If (rest.ResponseStatusCode <> 204) Then
        Debug.WriteLine("response status code = " & rest.ResponseStatusCode)
        Debug.WriteLine("response status text = " & rest.ResponseStatusText)
        Debug.WriteLine("response header: " & rest.ResponseHeader)
        Debug.WriteLine("response JSON: " & jsonResponse)
        Exit Sub
    End If


    i = i + 1
    Debug.WriteLine(i & ": Deleted " & fileId)
End While

Debug.WriteLine("All Files Deleted.")