AutoIt

Google Drive - Resumable Upload

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Demonstrates how to do a resumable upload to Google Drive. AutoIt

Local $bSuccess = False

; This example requires the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$bSuccess = True

; This example uses a previously obtained access token having permission for the 
; Google Drive scope. 
; See Get Google Drive OAuth2 Access Token

$oHttp = ObjCreate("Chilkat.Http")

$oHttp.AuthToken = "GOOGLE_DRIVE_ACCESS_TOKEN"

; First we want to initiate the resumable upload.
; We send a POST to get a session URI, which will be used to upload the file, and resume if needed.

; Our POST will look like this:

; POST https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable HTTP/1.1
; Authorization: Bearer [YOUR_AUTH_TOKEN]          <-- Chilkat automatically adds this header because the AuthToken property was set.
; Content-Length: 38                               <-- Chilkat will automatically add this header.
; Content-Type: application/json; charset=UTF-8    <-- This is the type of this POST, and is specified in the call to HttpJson.
; X-Upload-Content-Type: application/zip           <-- The type of file we'll be uploading
; X-Upload-Content-Length: 1366807                 <-- The size of the file we'll be uploading
; 
; {
;   "name": "myObject"
; }

$oHttp.SetRequestHeader "X-Upload-Content-Type","application/zip"
$oHttp.SetRequestHeader "X-Upload-Content-Length","1366807"

$oJson = ObjCreate("Chilkat.JsonObject")
$oJson.UpdateString("name","myZip")

$oResp = ObjCreate("Chilkat.HttpResponse")
$bSuccess = $oHttp.HttpJson("POST","https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable",$oJson,"application/json",$oResp)
If ($bSuccess = False) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

Local $iStatusCode = $oResp.StatusCode
If ($iStatusCode <> 200) Then
    ConsoleWrite($oResp.BodyStr & @CRLF)
    ConsoleWrite("response status = " & $iStatusCode & @CRLF)
    Exit
EndIf

; The session URI is in the "Location" response header:
$oSbSessionUri = ObjCreate("Chilkat.StringBuilder")
$oSbSessionUri.Append($oResp.GetHeaderField("Location"))
Local $sessionUri = $oSbSessionUri.GetAsString()
ConsoleWrite("Session URI: " & $sessionUri & @CRLF)

; Here's a sample session URI:  https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable&upload_id=AEnB2UrszR8lDqlo3mtXJw_0rYI_Hi1oVh1NPFcLfoyBq9NcSjk85kFopoZaVEgT38OSmLl0XsObPf4iCSJwHlrOvvIJQ_ckIQ

; -----------------------------------------------------------------------------
; The next step is to upload the file using the session URI:

; We'll send a PUT that looks like this:

; PUT https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable&upload_id=xa298sd_sdlkj2 HTTP/1.1
; Content-Length: 1366807
; Content-Type: application/zip
; 
; [BYTES 0-1366806]

; First remove the X-Upload-Content-Type and X-Upload-Content-Length request headers we specified earlier, so they don't get sent with subsequent requests.
$oHttp.ClearHeaders 

; Because the file is likely large, we'll use HttpSReq which allows to to pass an HTTP request object where the body can be streamed directly from a file.
$oReq = ObjCreate("Chilkat.HttpRequest")

$oReq.ContentType = "application/zip"
$oReq.HttpVerb = "PUT"

$oUrl = ObjCreate("Chilkat.Url")
$oUrl.ParseUrl($sessionUri)

$oReq.Path = $oUrl.PathWithQueryParams
ConsoleWrite("Path with Query Param: " & $oUrl.PathWithQueryParams & @CRLF)

; Specify that the request body is to be streamed directly from a file.
$bSuccess = $oReq.StreamBodyFromFile("qa_data/zips/big.zip")
If ($bSuccess = False) Then
    ConsoleWrite($oReq.LastErrorText & @CRLF)
    Exit
EndIf

$bSuccess = $oHttp.HttpSReq($oUrl.Host,$oUrl.Port,$oUrl.Ssl,$oReq,$oResp)
If ($bSuccess = False) Then
    ConsoleWrite($oHttp.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($oResp.BodyStr & @CRLF)
ConsoleWrite("response status = " & $oResp.StatusCode & @CRLF)

; Sample output:

; {
;  "kind": "drive#file",
;  "id": "1rx20i53eurtkVQ-RT7Ry8Ct85PgPYMET",
;  "name": "myZip",
;  "mimeType": "application/zip"
; }
; 
; response status = 200