(Xojo Plugin) List all Pages of Files in Google Drive

Demonstrates how iterate over pages to list files in Google Drive.

See Google Drive Files list for more optional HTTP parameters.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

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

// Provide the authentication credentials (i.e. the access token)
success = rest.SetAuthGoogle(gAuth)

// Get 5 results per page for testing.  (The default page size is 100, with a max of 1000.
success = rest.AddQueryParam("pageSize","5")

Dim json As New Chilkat.JsonObject
Dim i As Int32
Dim numFiles As Int32

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

Dim pageNumber As Int32
pageNumber = 1
Dim pageToken As String
Dim bContinueLoop As Boolean
bContinueLoop = rest.LastMethodSuccess And (rest.ResponseStatusCode = 200)

While bContinueLoop = True

    System.DebugLog("---- Page " + Str(pageNumber) + " ----")

    // Iterate over each file in the response and show the name, id, and mimeType.
    success = json.Load(jsonResponse)

    // See the sample JSON response at the bottom of this example.
    numFiles = json.SizeOfArray("files")
    i = 0
    While i < numFiles
        json.I = i
        System.DebugLog("name: " + json.StringOf("files[i].name"))
        System.DebugLog("id: " + json.StringOf("files[i].id"))
        System.DebugLog("mimeType: " + json.StringOf("files[i].mimeType"))
        System.DebugLog("-")
        i = i + 1
    Wend

    // 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
    bHasMorePages = json.LastMethodSuccess
    If (bHasMorePages = True) Then
        success = rest.ClearAllQueryParams()
        success = rest.AddQueryParam("pageSize","5")
        success = rest.AddQueryParam("pageToken",pageToken)
        jsonResponse = rest.FullRequestNoBody("GET","/drive/v3/files")
        bContinueLoop = rest.LastMethodSuccess And (rest.ResponseStatusCode = 200)
        pageNumber = pageNumber + 1
    End If

Wend

If (rest.LastMethodSuccess <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
End If

// A successful response will have a status code equal to 200.
If (rest.ResponseStatusCode <> 200) Then
    System.DebugLog("response status code = " + Str(rest.ResponseStatusCode))
    System.DebugLog("response status text = " + rest.ResponseStatusText)
    System.DebugLog("response header: " + rest.ResponseHeader)
    System.DebugLog("response JSON: " + jsonResponse)
    Return
End If

// A successful JSON response looks like this:
// {
//  "kind": "drive#fileList",
//  "files": [
//    {
//      "kind": "drive#file",
//      "id": "0B53Q6OSTWYolenpjTEU4ekJlQUU",
//      "name": "test",
//      "mimeType": "application/vnd.google-apps.folder"
//    },
//    {
//      "kind": "drive#file",
//      "id": "0B53Q6OSTWYolRm4ycjZtdXhRaEE",
//      "name": "starfish4.jpg",
//      "mimeType": "image/jpeg"
//    },
//    {
//      "kind": "drive#file",
//      "id": "0B53Q6OSTWYolMWt2VzN0Qlo1UjA",
//      "name": "hamlet2.xml",
//      "mimeType": "text/xml"
//    },
// ...
//    {
//      "kind": "drive#file",
//      "id": "0B53Q6OSTWYolc3RhcnRlcl9maWxlX2Rhc2hlclYw",
//      "name": "Getting started",
//      "mimeType": "application/pdf"
//    }
//  ]
// }