Using: Drive v2: 1.5.0.99 Beta, .NET Framework: 4.5
The authentication takes place properly (using impersonation) - via service account (AssertionFlowClient).
Access token is obtained. Service account has been granted domain wide privileges
I am able to get the parent folder - ID (strRootFolder) via Service.Files.List();
byte[] byteArray = System.IO.File.ReadAllBytes(FileName);
Google.Apis.Drive.v2.Data.File flUpload = new Google.Apis.Drive.v2.Data.File();
flUpload.Title = Title;
flUpload.Description = Description;
flUpload.MimeType = MimeType;
flUpload.Parents = new List<ParentReference>() { new ParentReference() { Id = strRootFolder } };
Google.Apis.Drive.v2.FilesResource.InsertMediaUpload drvRequest = drvService.Files.Insert(flUpload, new System.IO.MemoryStream(byteArray), "text/plain");
drvRequest.Upload();
However Upload method does not send any request. No exception is thrown. Fiddler trace shows no request has been sent and hence request.responsebody is always null.
Am I missing something ?
If some exception occur during the upload, the return object (IUploadProgress) should contain the exception (take a look at the Exception property).
Please check what is the exception.
You should also consider using UploadAsync which doesn't block your code (but first you should understand what is the exception)
You should look into Exception from your upload, that will give you a better idea of the actual problem.
Sample code:
var progress = request.Upload();
if (progress.Exception != null)
{
//Log execption, or break here to debug
YourLoggingProvider.Log(progress.Exception.Message.ToString());
}
Related
I built a login/register system, and I want that when you create a username it checks if email exists, it works fine and it shows the message box "Email exists", but when it is a new user and there is no email that exists, it crashes.
Here is the exception message:
(System.NullReferenceException) Message=The object reference was not set to an object instance
Code:
FirebaseResponse response = await client.GetTaskAsync("Information/" + Emailtextbox.TextName);
Data result = response.ResultAs<Data>();
if (Emailtextbox.TextName == result.Email)
{
MessageBox.Show("Email exists");
} else
{
var data = new Data
{
Email = Emailtextbox.TextName,
Fullname = Fullnametextbox.TextName,
Password = EncryptSHA.GetShaData(PasswordTextbox.TextName)
}
};
Updating this based on the screenshot of the error as well as the information provided in the following comments.
It looks like your error has to do with what's being returned from your client.GetTaskAsync("Information/" + Emailtextbox.Textname); call.
My recommendation would be to try and understand what it is you're receiving from that call (what's stored in your response object). With the latest screenshot I see that the Body is null, and that might be part of the problem. Try expanding what you see in the Response object in your response and see if you're even receiving any kind of data you can use and go from there.
I have a method which converts Email to .eml format.
However, the statement of EmailMessage.Bind suddenly stops working without any error.
Below is my code snippet:
public static string convertEmailToEml(EmailMessage emailMessage, string caseNumber, string EMLSaveFilePath)
{
Console.WriteLine(emailMessage.Subject); //correct value
Console.WriteLine(caseNumber); //correct value
Console.WriteLine(EMLSaveFilePath); //correct value
Console.WriteLine(emailMessage.Id); //correct value
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2007_SP1);
PropertySet props = new PropertySet(EmailMessageSchema.MimeContent);
var email = EmailMessage.Bind(service, emailMessage.Id, props); //not executed
string emlFullPath = EMLSaveFilePath + caseNumber + ".eml"; //not executed
Console.WriteLine(emlFullPath); //code not reached
Console.ReadKey();
using (FileStream fs = new FileStream(emlFullPath, FileMode.Create, FileAccess.Write))
{
fs.Write(email.MimeContent.Content, 0, email.MimeContent.Content.Length);
}
return emlFullPath;
}
May I know if there are any places that I can look into?
There were warning messages upon solution building as follows, not sure if they are linked:
Found conflicts between different versions of the same dependent
assembly that could not be resolved. These reference conflicts are
listed in the build log when log verbosity is set to detailed.
Exception Thrown during Debug Mode:
'Microsoft.Exchange.WebServices.Data.ServiceLocalException' in
Microsoft.Exchange.WebServices.dll("The Url property of the
ExchangeService object must be set.")
I have verified that service, emailMessage.Id, and props values are not null.
Based on the documentation for `EmailMessage.Bind(...), it states that this method results in a call to Exchange Web Services (EWS).
You create an instance of ExchangeService but you do not provide a URL to it (documentation). This is a requirement. The exception that is thrown is pointing you directly at the missing data.
Using Visual Studio, and AWS .NET V 3.0.
I'm trying to perform a real-time Predict operation, and to verify the basic setup works, I first perform a GetMLModel() which works and returns the endpoint (Somewhere in the documentation is was mentioned to use that result as the service endpoint, but it's the same that is listed in the console). Is has status "READY", so far so good.
The exception occurs below on the line below "Prediction P = RTP.Predict(Data)". Data contains a Dictionary with all the prediction values.
Error: Error making request with Error Code UnknownOperationException and Http Status Code BadRequest. No further error information was returned by the service.
public static APIResult GetRealTimePrediction(Dictionary<string, string> Data, string PayloadJSON = null) {
AmazonMachineLearningConfig MLConfig = new AmazonMachineLearningConfig();
MLConfig.RegionEndpoint = Amazon.RegionEndpoint.USEast1;
MLConfig.Validate();
AmazonMachineLearningClient MLClient = new AmazonMachineLearningClient("xxx", "xxx", MLConfig);
GetMLModelResponse MLMOdelResp = MLClient.GetMLModel("xxx"); // <-- WORKS
MLConfig.ServiceURL = MLMOdelResp.EndpointInfo.EndpointUrl;
Console.WriteLine(MLConfig.ServiceURL);
MLConfig.Validate();
Amazon.MachineLearning.Util.RealtimePredictor RTP = new Amazon.MachineLearning.Util.RealtimePredictor(MLClient, "xxx");
Prediction P = RTP.Predict(Data); // <----------------EXCEPTION HERE
}
(Obviously replace xxx with relevant values) :)
It turns out that this line:
MLConfig.ServiceURL = MLMOdelResp.EndpointInfo.EndpointUrl;
cases the MLConfig.RegionEndpoint to be reset. Even though the documentation indicates the RegionEndpoint can be determined from the ServiceURL (I'm pretty sure I read that), the RegionEndpoint needs to be set again before the RTP.Predict(Data) call.
Once I figured that out, I was able to reduce the code to just this, in case anyone else needs help. I guess adding too much information to the Configuration is NOT a good thing, as the AWS. NET library seems to figure all this out on its own.
public static APIResult GetRealTimePrediction(Dictionary<string, string> Data, string PayloadJSON = null) {
AmazonMachineLearningConfig MLConfig = new AmazonMachineLearningConfig();
MLConfig.RegionEndpoint = Amazon.RegionEndpoint.USEast1;
MLConfig.Validate(); // Just in case, not really needed
AmazonMachineLearningClient MLClient = new AmazonMachineLearningClient("xxx", "xxx", MLConfig);
Amazon.MachineLearning.Util.RealtimePredictor RTP = new Amazon.MachineLearning.Util.RealtimePredictor(MLClient, "xxx");
Prediction P = RTP.Predict(Data);
}
I want to check whether a facebook user liked my facebook page or not. I got so many solutions using javascript but I want to implement this requirement in ASP.Net.
I copied the code from the below link:
http://duanedawnrae.com/Blog/post/2012/02/29/Determine-if-a-Facebook-user-Likes-your-page-with-ASPNET.aspx
I got the below ASP.Net code which works for the same.
ASP.Net code:
public class WebService : System.Web.Services.WebService
{
[WebMethod()]
public string GetFacebookLikeStatus(string fbpageid, string fbappid, string fbtoken, string fburl)
{
string strReturn = null;
// Placeholder for the Facbook "like" API call
string strURL = null;
strURL = "https://graph.facebook.com/me/likes?access_token=" + fbtoken;
// Placeholder for the Facebook GET response
WebRequest objGETURL = null;
objGETURL = WebRequest.Create(strURL);
// Declare response stream
Stream objStream = null;
// Declare The Facebook response
string strLine = null;
// Declare a count on the search term
int intStr = 0;
try
{
// Create an instance of the StreamReader
StreamReader objReader = new StreamReader(objStream);
// Get the response from the Facebook API as a JSON string.
// If access_token is not correct for the logged
// on user Facebook returns (400) bad request error
objStream = objGETURL.GetResponse().GetResponseStream();
// If all is well
try
{
// Execute the StreamReader
strLine = objReader.ReadToEnd().ToString();
// Check if Facebook page Id exists or not
intStr = strLine.IndexOf(fbpageid); // if valid return a value
if (intStr > 0)
{
strReturn = "1";
// if not valid return a value
}
else
{
strReturn = "0";
}
objStream.Dispose();
}
catch (Exception ex)
{
// For testing comment out for production
strReturn = ex.ToString();
// Uncomment below for production
//strReturn = "Some friendly error message"
}
}
catch (Exception ex)
{
// For testing comment out for production
strReturn = ex.ToString();
// Uncomment below for production
//strReturn = "Some friendly error message"
}
return strReturn;
}
}
The above code contains a webservice which contains a single function. The function contains four input parameters and returns a single output string.
But when I run this webservice I got the error, “Value cannot be null. Parameter name: stream”. This error is coming because the “objStream” variable is set to null. Please fix the issue so that I can get my correct output as I dont know how to implement my requirement.
Like Gating is not allowed on Facebook, and neither is incentivizing users to like your Page. Users must like something only because they really want to, you can´t reward them in any way.
That being said, you would need the user_likes permission to use /me/likes, and you would need to get it approved by Facebook. Which will not happen just for checking if the user liked your Page.
Btw, that article is from 2012. A lot of stuff changed since then.
I know this question can be interpreted as a duplicate, but I can simply not get the blop service working. I have followed the standard example on msdn. I have implemented in my code but followed the example. I can get my MobileService, with the supplied script in the example, to insert a blob with open properties. I then use this code to upload an image to the blob storage:
BitmapImage bi = new BitmapImage();
MemoryStream stream = new MemoryStream();
if (bi != null)
{
WriteableBitmap bmp = new WriteableBitmap((BitmapSource)bi);
bmp.SaveJpeg(stream, bmp.PixelWidth, bmp.PixelHeight, 0, 100);
}
if (!string.IsNullOrEmpty(uploadImage.SasQueryString))
{
// Get the URI generated that contains the SAS
// and extract the storage credentials.
StorageCredentials cred = new StorageCredentials(uploadImage.SasQueryString);
var imageUri = new Uri(uploadImage.ImageUri);
// Instantiate a Blob store container based on the info in the returned item.
CloudBlobContainer container = new CloudBlobContainer(
new Uri(string.Format("https://{0}/{1}",
imageUri.Host, uploadImage.ContainerName)), cred);
// Upload the new image as a BLOB from the stream.
CloudBlockBlob blobFromSASCredential = container.GetBlockBlobReference(uploadImage.ResourceName);
await blobFromSASCredential.UploadFromStreamAsync(stream);//error!
// When you request an SAS at the container-level instead of the blob-level,
// you are able to upload multiple streams using the same container credentials.
stream = null;
}
I am getting an error in this code at the point marked error, with the following error:
+ ex {Microsoft.WindowsAzure.Storage.StorageException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound. ---> System.Net.WebException: The remote server returned an error: NotFound.
Which I do not understand since the code that returns the string from the script is:
// Generate the upload URL with SAS for the new image.
var sasQueryUrl = blobService.generateSharedAccessSignature(item.containerName,
item.resourceName, sharedAccessPolicy);
// Set the query string.
item.sasQueryString = qs.stringify(sasQueryUrl.queryString);
// Set the full path on the new new item,
// which is used for data binding on the client.
item.imageUri = sasQueryUrl.baseUrl + sasQueryUrl.path;
Of course this also depicts that I do not completely grasp the construction of the blob storage. And therefore any help would be appreciated.
Comment elaborations
From the server code it should create a public note for at least 5 minutes. And therefore not be an issue. My server script is the same as the link. But replicated here:
var azure = require('azure');
var qs = require('querystring');
var appSettings = require('mobileservice-config').appSettings;
function insert(item, user, request) {
// Get storage account settings from app settings.
var accountName = appSettings.STORAGE_ACCOUNT_NAME;
var accountKey = appSettings.STORAGE_ACCOUNT_ACCESS_KEY;
var host = accountName + '.blob.core.windows.net';
if ((typeof item.containerName !== "undefined") && (
item.containerName !== null)) {
// Set the BLOB store container name on the item, which must be lowercase.
item.containerName = item.containerName.toLowerCase();
// If it does not already exist, create the container
// with public read access for blobs.
var blobService = azure.createBlobService(accountName, accountKey, host);
blobService.createContainerIfNotExists(item.containerName, {
publicAccessLevel: 'blob'
}, function(error) {
if (!error) {
// Provide write access to the container for the next 5 mins.
var sharedAccessPolicy = {
AccessPolicy: {
Permissions: azure.Constants.BlobConstants.SharedAccessPermissions.WRITE,
Expiry: new Date(new Date().getTime() + 5 * 60 * 1000)
}
};
// Generate the upload URL with SAS for the new image.
var sasQueryUrl =
blobService.generateSharedAccessSignature(item.containerName,
item.resourceName, sharedAccessPolicy);
// Set the query string.
item.sasQueryString = qs.stringify(sasQueryUrl.queryString);
// Set the full path on the new new item,
// which is used for data binding on the client.
item.imageUri = sasQueryUrl.baseUrl + sasQueryUrl.path;
} else {
console.error(error);
}
request.execute();
});
} else {
request.execute();
}
}
The idea with the pictures is that other users of the app should be able to access them. As far as I understand I have made it public, but only write public for 5 minutes. The url for the blob I save in a mobileservice table, where the user needs to be authenticated, I would like the same safety on the storage. But do not know if this is accomplished? I am sorry for all the stupid questions, but I have not been able to solve it on my own so I have to "seem" stupid :)
If someone ends up in here needing help. The problem for me was the uri. It should have been http and not https. Then there were no error uploading.
But displaying the image even on a test image control from the toolbox, did not succeed. The problem was I had to set the stream to the begining:
stream.Seek(0, SeekOrigin.Begin);
Then the upload worked and was able to retrieve the data.