i was trying to create and run the sample project given in this link.
here is the code:
namespace GmailQuickstart
{
class Program
{
static string[] Scopes = { GmailService.Scope.GmailReadonly };
static string ApplicationName = "Gmail API Quickstart";
static void Main(string[] args)
{
UserCredential credential;
using (var stream =
new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = System.Environment.GetFolderPath(
System.Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
Console.WriteLine("Credential file saved to: " + credPath);
}
// Create Gmail API service.
var service = new GmailService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Define parameters of request.
UsersResource.LabelsResource.ListRequest request = service.Users.Labels.List("me");
// List labels.
IList<Label> labels= request.Execute().Labels;
Console.WriteLine("Labels:");
if (labels != null && labels.Count > 0)
{
foreach (var labelItem in labels)
{
Console.WriteLine("{0}", labelItem.Name);
}
}
else
{
Console.WriteLine("No labels found.");
}
Console.Read();
}
}
}
after i have done everything stated in google's documentation, including issuing a secrets.json file for my application/product, i ran it.
It fails with an exception, containing a "An invalid argument was supplied" inner exception.
I have retried everything with a new acocunt given new api credentials, etc., and still same error occurs. what am i doing wrong?
Try this
ClientSecrets secrets = new ClientSecrets()
{
ClientId = CLIENT_ID,
ClientSecret = CLIENT_SECRET
};
var token = new TokenResponse { RefreshToken = REFRESH_TOKEN };
var credentials = new UserCredential(new GoogleAuthorizationCodeFlow(
new GoogleAuthorizationCodeFlow.Initializer
{
ClientSecrets = secrets
}),
"user",
token);
var service = new GmailService(new BaseClientService.Initializer()
{
HttpClientInitializer = credentials,
ApplicationName = "ApplicationName"
});
Related
This question already has answers here:
What is a NullReferenceException, and how do I fix it?
(27 answers)
Closed 2 months ago.
My overall project is to create a spreadsheet, populate it, move it to a new location and lock it.
So far creating the sheet and populating it is fine. However, when I attempt to move the file I get the following error:
Happens at this part of the code: var getRequest = DriveService.Files.Get(fileId);
System.NullReferenceException
HResult=0x80004003
Message=Object reference not set to an instance of an object.
My code is:
static void Init()
{
UserCredential credential;
//Reading Credentials File...
using (var stream = new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials/sheets.googleapis.com-dotnet-quickstart.json");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.FromStream(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
}
// Creating Google Sheets API service...
SheetsService = new SheetsService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// Create a Drive API service client
DriveService DriveService = new DriveService(new Google.Apis.Services.BaseClientService.Initializer
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
}
static void CreateSheet()
{
// Create a new sheet with a single tab
string sheetName = "Test Create Sheet";
var NewSheet = new Google.Apis.Sheets.v4.Data.Spreadsheet();
NewSheet.Properties = new SpreadsheetProperties();
NewSheet.Properties.Title = sheetName;
var newSheet = SheetsService.Spreadsheets.Create(NewSheet).Execute();
SpreadsheetId = newSheet.SpreadsheetId;
Sheet = "Sheet1";
}
static void MoveSheet()
{
// Get the ID of the sheet you want to move
string sheetId = SpreadsheetId;
// Get the ID of the folder you want to move the sheet to
string folderId = "XXXXXBeNF2rG0PA6bsi89YugahH-XXXX";
// Retrieve the existing parents to remove
string fileId = sheetId;
var getRequest = DriveService.Files.Get(fileId);
getRequest.Fields = "parents";
var file = getRequest.Execute();
var previousParents = String.Join(",", file.Parents);
// Move the file to the new folder
var updateRequest =
DriveService.Files.Update(new Google.Apis.Drive.v3.Data.File(),
fileId);
updateRequest.Fields = "id, parents";
updateRequest.AddParents = folderId;
updateRequest.RemoveParents = previousParents;
//file = updateRequest.Execute();
}
It turns out I had a duplicate word (DriveService):
// Create a Drive API service client
DriveService DriveService = new DriveService(new Google.Apis.Services.BaseClientService.Initializer
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
}
Should have been this:
// Create a Drive API service client
DriveService = new DriveService(new Google.Apis.Services.BaseClientService.Initializer
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
}
I am now beyond that issue and have a new one in the form of:
The service drive has thrown an exception. HttpStatusCode is Forbidden. Insufficient Permission: Request had insufficient authentication scopes.
I wanna get all playlists of a channel
all settings works on API explorer but when I try it in the client it not working
other things of youtube data api3 like channel and playlistitems working, my problem is just with playlist.list
UserCredential credential;
using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
{
credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
// This OAuth 2.0 access scope allows for full read/write access to the
// authenticated user's account.
new[] { YouTubeService.Scope.Youtube },
"user",
CancellationToken.None,
new FileDataStore(this.GetType().ToString())
);
}
var youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = this.GetType().ToString()
});
var channelVids = youtubeService.Playlists.List("snippet");
channelVids.Id = "UCIabPXjvT5BVTxRDPCBBOOQ";
//channelVids.Fields = "items(id,snippet(description,publishedAt,thumbnails/default/url,title)),nextPageToken";
channelVids.MaxResults = 25;
var results = await channelVids.ExecuteAsync();
Console.WriteLine(results.Items.Count + " lists");
I found my solution
it was just a typo
channelVids.Id = "UCIabPXjvT5BVTxRDPCBBOOQ";
to
channelVids.ChannelId = "UCIabPXjvT5BVTxRDPCBBOOQ";
I am trying to create new folder MY_FOLDER in Google Drive using Drive API, using the quick starter example and adding more to it as I read through the https://developers.google.com/drive/v3/web/quickstart/dotnet.
My scope is set as:
static string[] Scopes = { DriveService.Scope.DriveFile };
And I create service like this
private static void CreateService()
{
using (var stream =
new FileStream("client_secret.json", FileMode.Open, FileAccess.ReadWrite))
{
string credPath = System.Environment.GetFolderPath(
System.Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials/drive-dotnet-quickstart.json");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
Console.WriteLine("Credential file saved to: " + credPath);
}
// Create Drive API service.
service = new DriveService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
}
As per example on this page [https://developers.google.com/drive/v3/web/folder], 2, I am creating new folder
var fileMetadata = new File()
{
Name = "MY_FOLDER",
MimeType = "application/vnd.google-apps.folder"
};
var request = driveService.Files.Create(fileMetadata);
request.Fields = "id";
var file = request.Execute();
Console.WriteLine("Folder ID: " + file.Id);
The error I get reads "Insufficient Permissions [403]"
UPDATE
I created credentials as described in same Google tutorial at https://developers.google.com/drive/v3/web/quickstart/dotnet
I have two methods. One is to read data from Google Sheets and the other is to add a value to a single cell (But I actually want to append data to the last row but, I'm gonna start with just 1 record first). The btnLoadAttendance works perfectly but when I input something in the textbox1.Text, in the "UpdateValuesResponse result2 = update.Execute();" I get an error like so:
Request had insufficient authentication scopes. [403]
I found an answer here "Request had insufficient authentication scopes [403] when update cell spreadsheet" that says about commenting some lines. I tried commenting that line but it doesn't work for me. I still get the same error. Below is my code:
WORKING
private void btnLoadAttendance_Click(object sender, EventArgs e)
{
UserCredential credential;
using (var stream =
new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = System.Environment.GetFolderPath(
System.Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials/sheets.googleapis.com-dotnet-quickstart.json");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
Console.WriteLine("Credential file saved to: " + credPath);
}
var service = new SheetsService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
String spreadsheetId = "1b64mhUgdeRzGyJF4NfAPhkFY7br3c0o9rJ9mMnDBTR8";
String range = "Sheet1!A2:D";
SpreadsheetsResource.ValuesResource.GetRequest request =
service.Spreadsheets.Values.Get(spreadsheetId, range);
ValueRange response = request.Execute();
IList<IList<Object>> values = response.Values;
if (values != null && values.Count > 0)
{
foreach (var x in values)
{
dgvAttendance.Rows.Add(x[0], x[1], x[2], x[3]);
}
}
else
{
MessageBox.Show("No data found.");
}
}
NOT WORKING
private void btnAddData_Click(object sender, System.EventArgs e)
{
string[] Scopes = { SheetsService.Scope.SpreadsheetsReadonly };
UserCredential credential;
using (var stream =
new FileStream("client_secret.json", FileMode.Open, FileAccess.Read))
{
string credPath = System.Environment.GetFolderPath(
System.Environment.SpecialFolder.Personal);
credPath = Path.Combine(credPath, ".credentials/sheets.googleapis.com-dotnet-quickstart.json");
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
Console.WriteLine("Credential file saved to: " + credPath);
}
var service = new SheetsService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
String spreadsheetId = "1b64mhUgdeRzGyJF4NfAPhkFY7br3c0o9rJ9mMnDBTR8/edit";
String range = "Sheet1!F5"; // update the F5 cell
//ValueRange response = request.Execute();
ValueRange valueRange = new ValueRange();
valueRange.MajorDimension = "COLUMNS"; //Rows or Columns
var oblist = new List<object>() { textBox1.Text };
valueRange.Values = new List<IList<object>> { oblist };
SpreadsheetsResource.ValuesResource.UpdateRequest update =
service.Spreadsheets.Values.Update(valueRange, spreadsheetId, range);
update.ValueInputOption = SpreadsheetsResource.ValuesResource.UpdateRequest.ValueInputOptionEnum.RAW;
UpdateValuesResponse result2 = update.Execute();
}
You help is very much appreciated.
Firstly delete the credentials files .credentials/sheets.googleapis.com-dotnet-quickstart.json stored at c:\user\Documents.credentials.
Change the scope variable used for reading cells from Google Spreadsheets from
string[] Scopes = { SheetsService.Scope.SpreadsheetsReadonly };
to
static string[] Scopes = { SheetsService.Scope.Spreadsheets };
After execution of code, API will authenticate again and then issue will be resolved.
I just needed to change:
string[] Scopes = { SheetsService.Scope.SpreadsheetsReadonly };
to
static string[] Scopes = { SheetsService.Scope.Spreadsheets };
and it took me all day!
I am building a YouTube app for windows 8.1.
I am having a trouble with, add(Insert) subscription is fail
my code:
var credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
new Uri("ms-appx:///Assets/client_secrets.json"),
new[] { Uri.EscapeUriString(YouTubeService.Scope.Youtube) },
"user",
CancellationToken.None);
var youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
ApiKey = "XXXXXXXXXXXXXXXXXXXXXXXXXXXX",
HttpClientInitializer = credential,
ApplicationName = "AppName"
});
Subscription body = new Subscription();
body.Snippet = new SubscriptionSnippet();
body.Snippet.ChannelId = "UC-kezFAw46x-9ctBUqVe86Q";
try
{
var addSubscriptionRequest = youtubeService.Subscriptions.Insert(body, "snippet");
var addSubscriptionResponse = await addSubscriptionRequest.ExecuteAsync();
}
catch (Exception e)
{
throw e;
}
When I set a breakpoint at the first line.
when execute to last line, breaks this function
Update(2015-11-14):
Error Message:
The subscription resource specified in the request must use the snippet.resorceId property to identify the channel that is being subscribed to [400]
Successful Code:
var credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
new Uri("ms-appx:///Assets/client_secrets.json"),
new[] { Uri.EscapeUriString(YouTubeService.Scope.Youtube) },
"user",
CancellationToken.None);
var youtubeService = new YouTubeService(new BaseClientService.Initializer()
{
//ApiKey = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
HttpClientInitializer = credential,
ApplicationName = "4GameTV"
});
try
{
Subscription body = new Subscription();
body.Snippet = new SubscriptionSnippet();
body.Snippet.ResourceId = new ResourceId();
body.Snippet.ResourceId.ChannelId = "UC-kezFAw46x-9ctBUqVe86Q"; //replace with specified channel id
var addSubscriptionRequest = youtubeService.Subscriptions.Insert(body, "snippet");
var addSubscriptionResponse = await addSubscriptionRequest.ExecuteAsync();
}
catch (Exception e)
{
throw e;
}
Your authentication seems a bit off from what I normally use. Also ApiKey is only needed if you want to access public data.
string[] scopes = new string[] { YouTubeService.Scope.Youtube };
// here is where we Request the user to give us access, or use the Refresh Token that was previously stored in %AppData%
UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(new ClientSecrets { ClientId = clientId, ClientSecret = clientSecret }
, scopes
, "test"
, CancellationToken.None
, new FileDataStore("Daimto.YouTube.Auth.Store")).Result;
YouTubeService service = new YouTubeService(new YouTubeService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "YouTube Data API Sample",
});