(Visual FoxPro) Create a File in a Folder

Creates (uploads) a file to be located in a particular folder.

See Google Drive Files: create for more details.

Also See Google Drive Multipart Upload for more details.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loGAuth
LOCAL loRest
LOCAL lnBAutoReconnect
LOCAL loJson
LOCAL loParents
LOCAL lcFolderId
LOCAL lcFileContents
LOCAL lcJsonResponse

lnSuccess = 0

lnSuccess = 1

* This example 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.

loGAuth = CreateObject('Chilkat.AuthGoogle')
loGAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN"

loRest = CreateObject('Chilkat.Rest')

* Connect using TLS.
lnBAutoReconnect = 1
lnSuccess = loRest.Connect("www.googleapis.com",443,1,lnBAutoReconnect)

* Provide the authentication credentials (i.e. the access token)
loRest.SetAuthGoogle(loGAuth)

* -------------------------------------------------------------------------
* A multipart upload to Google Drive needs a multipart/related Content-Type
loRest.AddHeader("Content-Type","multipart/related")

* Specify each part of the request.

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

loJson = CreateObject('Chilkat.JsonObject')
loJson.AppendString("name","testHello.txt")
loJson.AppendString("description","A simple file that says Hello World.")
loJson.AppendString("mimeType","text/plain")

* To place the file in a folder, we must add a parents[] array to the JSON
* and list the folder id's.  It's possible for a file to be in multiple folders at once
* if it has more than one parent.  If no parents are specified, then the file is created
* in the My Drive folder.  
* Note: We'll assume we already have the id if the folder.  It is the id's that are specified here,
* not the folder names.

loParents = CreateObject('Chilkat.JsonArray')
loJson.AppendArray2("parents",loParents)

lcFolderId = "0B53Q6OSTWYolY2tPU1BnYW02T2c"
loParents.AddStringAt(-1,lcFolderId)

loRest.SetMultipartBodyString(loJson.Emit())

* The 2nd part is the file content, which will contain "Hello World!"
loRest.PartSelector = "2"
loRest.AddHeader("Content-Type","text/plain")

lcFileContents = "Hello World!"
loRest.SetMultipartBodyString(lcFileContents)

lcJsonResponse = loRest.FullRequestMultipart("POST","/upload/drive/v3/files?uploadType=multipart")
IF (loRest.LastMethodSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loGAuth
    RELEASE loRest
    RELEASE loJson
    RELEASE loParents
    CANCEL
ENDIF

* A successful response will have a status code equal to 200.
IF (loRest.ResponseStatusCode <> 200) THEN
    ? "response status code = " + STR(loRest.ResponseStatusCode)
    ? "response status text = " + loRest.ResponseStatusText
    ? "response header: " + loRest.ResponseHeader
    ? "response JSON: " + lcJsonResponse
    RELEASE loGAuth
    RELEASE loRest
    RELEASE loJson
    RELEASE loParents
    CANCEL
ENDIF

* Show the JSON response.
loJson.Load(lcJsonResponse)

* Show the full JSON response.
loJson.EmitCompact = 0
? loJson.Emit()

* A successful response looks like this:
* {
*   "kind": "drive#file",
*   "id": "0B53Q6OSTWYoldmJ0Z3ZqT2x5MFk",
*   "name": "Untitled",
*   "mimeType": "text/plain"
* }

* Get the fileId:
? "fileId: " + loJson.StringOf("id")

RELEASE loGAuth
RELEASE loRest
RELEASE loJson
RELEASE loParents