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Lianja Examples

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(Lianja) 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.

Chilkat Lianja Extension Download

Chilkat Lianja Extension

llSuccess = .T.

//  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("CkAuthGoogle")
loGAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN"

loRest = createobject("CkRest")

//  Connect using TLS.
llBAutoReconnect = .T.
llSuccess = loRest.Connect("www.googleapis.com",443,.T.,llBAutoReconnect)

//  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("CkJsonObject")
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 = loJson.AppendArray("parents")
lcFolderId = "0B53Q6OSTWYolY2tPU1BnYW02T2c"
loParents.AddStringAt(-1,lcFolderId)
release loParents

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 <> .T.) then
    ? loRest.LastErrorText
    release loGAuth
    release loRest
    release loJson
    return
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
    return
endif

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

//  Show the full JSON response.
loJson.EmitCompact = .F.
? 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

 

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