(PowerBuilder) Dropbox: Access Your Own Account

To programmatically interact with your own Dropbox account, such as for uploading, downloading, listing files, etc., go to the Dropbox app console and create an application. Then generate an access token in the online app console as shown in the screenshot below. The access token does not expire, and can be used to access your own account from your own non-web application.

The example code, located below the screenshot, shows how to list the files in the root folder.

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

integer li_rc
oleobject loo_Rest
integer li_BTls
integer li_Port
integer li_BAutoReconnect
integer li_Success
oleobject loo_Json
string ls_ResponseStr
oleobject loo_JsonResponse
integer li_NumEntries
integer i
oleobject loo_Ckdt
integer li_BLocalDateTime
oleobject loo_Dt

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

loo_Rest = create oleobject
// Use "Chilkat_9_5_0.Rest" for versions of Chilkat < 10.0.0
li_rc = loo_Rest.ConnectToNewObject("Chilkat.Rest")
if li_rc < 0 then
    destroy loo_Rest
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Connect to the www.dropbox.com endpoint.
li_BTls = 1
li_Port = 443
li_BAutoReconnect = 1
li_Success = loo_Rest.Connect("api.dropboxapi.com",li_Port,li_BTls,li_BAutoReconnect)
if li_Success <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    return
end if

loo_Rest.AddHeader("Content-Type","application/json")
loo_Rest.AddHeader("Authorization","Bearer DROPBOX-ACCESS-TOKEN")

loo_Json = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

// The root folder should be an empty string, not "/"
loo_Json.AppendString("path","")
loo_Json.AppendBool("recursive",0)
loo_Json.AppendBool("include_media_info",0)
loo_Json.AppendBool("include_deleted",0)
loo_Json.AppendBool("include_has_explicit_shared_members",0)

ls_ResponseStr = loo_Rest.FullRequestString("POST","/2/files/list_folder",loo_Json.Emit())
if loo_Rest.LastMethodSuccess <> 1 then
    Write-Debug loo_Rest.LastErrorText
    destroy loo_Rest
    destroy loo_Json
    return
end if

// Success is indicated by a 200 response status code.
if loo_Rest.ResponseStatusCode <> 200 then
    // Examine the request/response to see what happened.
    Write-Debug "response status code = " + string(loo_Rest.ResponseStatusCode)
    Write-Debug "response status text = " + loo_Rest.ResponseStatusText
    Write-Debug "response header: " + loo_Rest.ResponseHeader
    Write-Debug "response body (if any): " + ls_ResponseStr
    Write-Debug "---"
    Write-Debug "LastRequestStartLine: " + loo_Rest.LastRequestStartLine
    Write-Debug "LastRequestHeader: " + loo_Rest.LastRequestHeader
    destroy loo_Rest
    destroy loo_Json
    return
end if

loo_JsonResponse = create oleobject
// Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
li_rc = loo_JsonResponse.ConnectToNewObject("Chilkat.JsonObject")

loo_JsonResponse.Load(ls_ResponseStr)

loo_JsonResponse.EmitCompact = 0
Write-Debug loo_JsonResponse.Emit()

// A sample JSON response is shown at the end of this example.
// The following code iterates over the entries.
li_NumEntries = loo_JsonResponse.SizeOfArray("entries")
i = 0
do while i < li_NumEntries
    loo_JsonResponse.I = i
    Write-Debug "----"
    Write-Debug "name: " + loo_JsonResponse.StringOf("entries[i].name")
    Write-Debug "path_lower: " + loo_JsonResponse.StringOf("entries[i].path_lower")
    Write-Debug "path_display: " + loo_JsonResponse.StringOf("entries[i].path_display")
    if loo_JsonResponse.HasMember("entries[i].sharing_info") = 1 then
        Write-Debug "has sharing_info..."
        Write-Debug "read_only: " + loo_JsonResponse.StringOf("entries[i].sharing_info.read_only")
        Write-Debug "shared_folder_id: " + loo_JsonResponse.StringOf("entries[i].sharing_info.shared_folder_id")
    end if

    if loo_JsonResponse.HasMember("entries[i].client_modified") = 1 then
        // Demonstrate how to parse a date/time:
        loo_Ckdt = create oleobject
        // Use "Chilkat_9_5_0.CkDateTime" for versions of Chilkat < 10.0.0
        li_rc = loo_Ckdt.ConnectToNewObject("Chilkat.CkDateTime")

        li_Success = loo_Ckdt.SetFromTimestamp(loo_JsonResponse.StringOf("entries[i].client_modified"))
        // The date/time can now be converted to many other formats, or the individual parts
        // can be accessed.
        li_BLocalDateTime = 1
        loo_Dt = loo_Ckdt.GetDtObj(li_BLocalDateTime)
        Write-Debug string(loo_Dt.Year) + "-" + string(loo_Dt.Month) + "-" + string(loo_Dt.Day)
        destroy loo_Dt
    end if

    i = i + 1
loop

Write-Debug "Success."

// {
//   "entries": [
//     {
//       ".tag": "folder",
//       "name": "chilkat Team Folder",
//       "path_lower": "/chilkat team folder",
//       "path_display": "/chilkat Team Folder",
//       "id": "id:2VqX9RLr-JAAAAAAAAAAAQ",
//       "shared_folder_id": "1210954290",
//       "sharing_info": {
//         "read_only": false,
//         "shared_folder_id": "1210954290"
//       }
//     },
//     {
//       ".tag": "file",
//       "name": "Get Started with Dropbox.pdf",
//       "path_lower": "/get started with dropbox.pdf",
//       "path_display": "/Get Started with Dropbox.pdf",
//       "id": "id:oxE2oMDqH4AAAAAAAAAAAQ",
//       "client_modified": "2016-05-07T11:47:47Z",
//       "server_modified": "2016-05-07T11:47:47Z",
//       "rev": "1483db13f",
//       "size": 692088
//     }
//   ],
//   "cursor": "AAEnZXciJyS4gzC_tlX6K2na4c8o7_09-dxmXKHpkPPyf3Kl0H4N-VYnz424nCrFOJuhMiM5_RgNAersumx9qe7NgCSdlppr80iFk0gf6vPlecM6SBtLcs6OYXL8ILWiZ62pfnOvgC3WKGlG6dqZ-VXH",
//   "has_more": false
// }
// 


destroy loo_Rest
destroy loo_Json
destroy loo_JsonResponse
destroy loo_Ckdt