Xbase++

Create a File in a Folder

See more Google Drive Examples

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.

Xbase++

LOCAL nSuccess
LOCAL oGAuth
LOCAL oRest
LOCAL nBAutoReconnect
LOCAL oJson
LOCAL oParents
LOCAL cFolderId
LOCAL cFileContents
LOCAL cJsonResponse

nSuccess := 0

nSuccess := 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.

oGAuth := CreateObject("Chilkat.AuthGoogle")
oGAuth:AccessToken := "GOOGLE-DRIVE-ACCESS-TOKEN"

oRest := CreateObject("Chilkat.Rest")

//  Connect using TLS.
nBAutoReconnect := 1
nSuccess := oRest:Connect("www.googleapis.com", 443, 1, nBAutoReconnect)

//  Provide the authentication credentials (i.e. the access token)
oRest:SetAuthGoogle(oGAuth)

//  -------------------------------------------------------------------------
//  A multipart upload to Google Drive needs a multipart/related Content-Type
oRest:AddHeader("Content-Type", "multipart/related")

//  Specify each part of the request.

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

oJson := CreateObject("Chilkat.JsonObject")
oJson:AppendString("name", "testHello.txt")
oJson:AppendString("description", "A simple file that says Hello World.")
oJson: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.

oParents := CreateObject("Chilkat.JsonArray")
oJson:AppendArray2("parents", oParents)

cFolderId := "0B53Q6OSTWYolY2tPU1BnYW02T2c"
oParents:AddStringAt(-1, cFolderId)

oRest:SetMultipartBodyString(oJson:Emit())

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

cFileContents := "Hello World!"
oRest:SetMultipartBodyString(cFileContents)

cJsonResponse := oRest:FullRequestMultipart("POST", "/upload/drive/v3/files?uploadType=multipart")
IF (oRest:LastMethodSuccess == 0)
    ? oRest:LastErrorText
    oGAuth:destroy()
    oRest:destroy()
    oJson:destroy()
    oParents:destroy()
    RETURN
ENDIF

//  A successful response will have a status code equal to 200.
IF (oRest:ResponseStatusCode != 200)
    ? "response status code = " + Str(oRest:ResponseStatusCode)
    ? "response status text = " + oRest:ResponseStatusText
    ? "response header: " + oRest:ResponseHeader
    ? "response JSON: " + cJsonResponse
    oGAuth:destroy()
    oRest:destroy()
    oJson:destroy()
    oParents:destroy()
    RETURN
ENDIF

//  Show the JSON response.
oJson:Load(cJsonResponse)

//  Show the full JSON response.
oJson:EmitCompact := 0
? oJson:Emit()

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

//  Get the fileId:
? "fileId: " + oJson:StringOf("id")

oGAuth:destroy()
oRest:destroy()
oJson:destroy()
oParents:destroy()