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(Lianja) Google Drive Insert Permission

This example demonstrates how to insert a permission for a file (see https://developers.google.com/drive/v2/reference/permissions/insert)

The impetus for creating this example was a need to be able to view files uploaded using a service account key in the Google Drive web interface. When using a service account access token, the files your application will see are those for the service account, and not the files for your main account. For example, the Google Account I use for testing has a username of "support@chilkatcloud.com". (Don't send email to support@chilkatcloud.com, it's just use for testing and not interactively read.) I use "support@chilkatcloud.com" when I log into Google interactively to view files in Google Drive at https://drive.google.com/drive/my-drive.

The files I upload to Google Drive using a service account key won't be visible in the browser UI. To make them visible, you need to insert a permission for the file so that the main user account, which in this case is "support@chilkatcloud.com", is a reader. After the permission is inserted, the file will be visible under "Shared with me" -- as if another Google Drive account shared the file with you.

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llSuccess = .T.

//  It 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)

loRest.AddHeader("Content-Type","application/json; charset=UTF-8")

loJson = createobject("CkJsonObject")
loJson.AppendString("role","reader")
loJson.AppendString("type","user")
loJson.AppendString("value","support@chilkatcloud.com")

//  A note from a Chilkat customer:
// 
//    My coding attempt was frustrated because I tried a role of "owner".
//    Even when providing the extra parameter of ...?transferOwnership=true
//    that approach fails (400, Bad Request).
// 

//  This example is inserting a permission for the file whose fileId is "0By-hrxCCDzSQUGxJY0hzNUFpNmc".
lcJsonResponse = loRest.FullRequestString("POST","/drive/v2/files/0By-hrxCCDzSQUGxJY0hzNUFpNmc/permissions",loJson.Emit())
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()

? "Success."


release loGAuth
release loRest
release loJson

 

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