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Sendgrid dynamic data not being sent to Template

This is how I send my email:
public async System.Threading.Tasks.Task<string> SendInternalEmail(BasicEmailStructureViewModel Structure, List<string> AdditionalVariables, TenantEmailTemplate tenantEmailTemplate, TenantCommunication tenantCommunication, string ReceiverId, string ReceiverEmail, string ReceiverName, string CampaignName)
{
try
{
var client = new SendGridClient(tenantCommunication.SendgridApiKey);
var message = new SendGridMessage();
message.SetFrom(new EmailAddress(tenantCommunication.SendgridPrimarySender, tenantCommunication.SendgridPrimarySenderTag));
message.AddTo(new EmailAddress(ReceiverEmail, $"{ReceiverName}"));
message.Subject = tenantEmailTemplate.Subject;
message.SetTemplateId(tenantEmailTemplate.TemplateId);
List<string> jsonVars = new List<string>();
var subjectString = #$"""subject"":""{tenantEmailTemplate.Subject}""";
jsonVars.Add(subjectString);
foreach (PropertyInfo prop in Structure.GetType().GetProperties())
{
var variableString = #$"""{prop.Name}"":""{prop.GetValue(Structure, null)}""";
}
for (var i = 0; i < AdditionalVariables.Count; i++)
{
jsonVars.Add(AdditionalVariables[i]);
}
var flattenList = "{" + string.Join(",", jsonVars) + "}";
var emailData = Newtonsoft.Json.JsonConvert.DeserializeObject<object>(flattenList);
message.SetTemplateData(emailData);
if (CampaignName != null && CampaignName != "")
{
message.AddCustomArg("CampaignName", CampaignName);
}
var response = await client.SendEmailAsync(message);
if (response.IsSuccessStatusCode == true)
{
return Guid.NewGuid().ToString();
}
else
{
var errorMessage = response.Body.ReadAsStringAsync().Result;
return errorMessage;
}
}
catch(Exception e)
{
if (e != null)
{
return e.Message;
}
}
return "Invalid Email";
}
A typical input to this function will be like this:
var variableString =
#$"""verification_link"":""www.website.com?Key={Input.Key}""";
My email sends normally, however, none of the variables that I have set have been sent through. This is based roughly off the template sample on github: https://github.com/sendgrid/sendgrid-csharp/blob/main/examples/templates/templates.cs
Is there another sample I can use or what is the correct way to send variables dynamically?

I don't think that is the best way to construct the JSON for your dynamic template variables.
Would it be possible for you to build the variables as an object and then serialize them. Like:
var templateData = new {
subject = tenantEmailTemplate.Subjectm
otherVariableName = otherVariable
};
string emailData = JsonConvert.SerializeObject(templateData);
message.SetTemplateData(emailData);

i need to create a csv file with UTF-8-BOM encoding, i am using .NET (C#)

public async Task<IActionResult> DownloadCSVResults([FromBody] ProfilesSearchOptions searchOptions)
{
var report = await profileManager.GetRep(searchOptions);
if (report == null)
{
return NotFound();
}
var result = Encoding.UTF8.GetPreamble().Concat(report.Body).ToArray();
return File(result, "text/csv", $"UserProfiles.{DateTime.Now:yyyy.MM.dd.HH.mm.ss}.csv");
}
public async Task<Report> GetRep(ProfilesSearchOptions searchOptions)
{
if (searchOptions == null)
{
return null;
}
var searchResult = await SearchProfiles(tenantDomain, false, searchOptions);
if (searchResult == null)
{
return null;
}
var report = GenerateReportRecord("Trainee");
var fileAsBytes = CsvService.GetCSVAsBytesWithHeaders(searchResult.UsersProfiles.Select(m => new UserProfileViewModel
{
Id = m.Id,
FirstNameAr = m.FirstNameAr,
FatherNameAr = m.FatherNameAr,
FamilyNameAr = m.FamilyNameAr,
FullNameAr = m.FullNameAr,
Email = m.Tenants?.Select(t => t.Email).Aggregate((t1, t2) => t1 + ", " + t2),
Deleted = m.Deleted.HasValue && m.Deleted.Value ? "Yes" : "No",
}));
report.Body = fileAsBytes;
report.Status = ReportStatus.Success;
return report;
}
public static byte[] GetCSVAsBytesWithHeaders<T>(IEnumerable<T> data)
{
using (var memory = new MemoryStream())
using (var writer = new StreamWriter(memory, new UTF8Encoding(true)))
using (var csvWriter = new CsvWriter(writer))
{
csvWriter.Configuration.RegisterClassMap<AutoClassMapWithApplyDisplayNameAttribute<T>>();
csvWriter.WriteRecords<T>(data);
writer.Flush();
var result = memory.ToArray();
return result;
}
}
private Report GenerateReportRecord(string reportTitle, string reportName)
{
return new Report
{
Id = Guid.NewGuid().ToString(),
ReportTitle = $"{reportTitle}.{DateTime.Now:yyyy.MM.dd.HH.mm.ss}",
Status = ReportStatus.InProgress
};
}
these are the three main functions that I am using the CSV file is created but with UTF-8 Encoding but as I mentioned, I needed it to be UTF-8-BOM...any help? and thanks in advance...
the problem is in my csv file some charater are displaying like that => " الاسم الاول "

How to get Facebook profile Picture C# .Net

I need to get the user´s facebook profile picture and input it in a crop structure. I´m using Asp.NET MVC, jcrop and the facebook SDK. Untill now i can input files from my computer. I also have a function that access the facebook of the user and returns a session with the user Id, and a GetPhoto function that should return the profile picture. Can someone help me?
I use this code to input the files from the computer:
[ValidateAntiForgeryToken]
public ActionResult _Upload(IEnumerable<HttpPostedFileBase> files)
{
if (files == null || !files.Any()) return Json(new { success = false, errorMessage = "No file uploaded." });
var file = files.FirstOrDefault(); // get ONE only
if (file == null || !IsImage(file)) return Json(new { success = false, errorMessage = "File is of wrong format." });
if (file.ContentLength <= 0) return Json(new { success = false, errorMessage = "File cannot be zero length." });
var webPath = GetTempSavedFilePath(file);
//mistertommat - 18 Nov '15 - replacing '\' to '//' results in incorrect image url on firefox and IE,
// therefore replacing '\\' to '/' so that a proper web url is returned.
return Json(new { success = true, fileName = webPath.Replace("\\", "/") }); // success
}
i tried doing this but the GetPhoto() is returning a null element.
public ActionResult RetornoFb()
{
var _fb = new FacebookClient();
FacebookOAuthResult oauthResult;
if (!_fb.TryParseOAuthCallbackUrl(Request.Url, out oauthResult))
{
// Error
}
if (oauthResult.IsSuccess)
{
dynamic parameters = new ExpandoObject();
parameters.client_id = id;
parameters.redirect_uri = "http://localhost:4323/Avatar/RetornoFb/";
parameters.client_secret = secretkey;
parameters.code = oauthResult.Code;
dynamic result = _fb.Get("/oauth/access_token", parameters);
var accessToken = result.access_token;
Session.Add("FbUserToken", accessToken);
}
else
{
}
//return RedirectToAction("Upload");
HttpPostedFileBase objFile = (HttpPostedFileBase)new MemoryPostedFile(GetPhoto());
var webPath = GetTempSavedFilePath(objFile);
return Json(new { success = true, fileName = webPath.Replace("\\", "/") }); // success
}
public byte[] GetPhoto()
{
try
{
string url = "https://graph.facebook.com/" + GetProfileId() + "?fields=picture.width(480).height(480)";
WebClient webClient = new WebClient();
string response = webClient.DownloadString(url);
dynamic json = JObject.Parse(response);
string urlPicture = json.picture.data.url;
return webClient.DownloadData(urlPicture);
}
catch (Exception)
{
return null;
}
}

Resolved changing my GetPhoto Function. I was having permission issues.
private byte[] GetPhoto()
{
try
{
var _fb = new FacebookClient(Session["FbuserToken"].ToString());
dynamic resultMe = _fb.Get(GetProfileId()+"?fields=picture.width(480).height(480)");
WebClient webClient = new WebClient();
string urlPicture = resultMe.picture.data.url;
return webClient.DownloadData(urlPicture);
}
catch (Exception)
{
return null;
}
}

Issue with System.Threading.Tasks.Task.Factory.StartNew() in UWP?

I am working on Windows 10 UWP app and my requirement is to upload 5 images on the server with unique value. So, I have used System.Threading.Tasks.Task.Factory.StartNew().Now, when I checked while debugging, I found that randomly sometimes for 2 images, it sends same unique key. Can someone suggest is it better to use System.Threading.Tasks.Task.Factory.StartNew()?
All the images are sent using a web service. My sample code for this is following
WebServiceUtility serviceUtility = new WebServiceUtility();
List<System.Threading.Tasks.Task> tasks = new List<System.Threading.Tasks.Task>();
var cancelSource = new CancellationTokenSource();
cancellationToken = cancelSource.Token;
System.Threading.Tasks.Task currentTask = null;
List<System.Threading.Tasks.Task> uploadTasks = new List<System.Threading.Tasks.Task>();
List<string> uploadedImageIdList = new List<string>();
foreach (var image in _imageCollection)
{
if (!cancellationToken.IsCancellationRequested)
{
currentTask = await System.Threading.Tasks.Task.Factory.StartNew(async () =>
{
string imageName = string.Empty;
string imagePath = string.Empty;
if (image.IsEvidenceImage)
{
imageName = image.EvidencePath.Split('\\')[1];
imagePath = image.EvidencePath;
}
else
{
imageName = image.EvidencePath.Split('#')[1].Split('\\')[1];
imagePath = image.EvidencePath.Split('#')[1];
}
byte[] _imageAsByteArray = await GetEvidenceFromIsoStore(imagePath);
if (null != _imageAsByteArray && _imageAsByteArray.Length > 0)
{
IRestResponse response = await serviceUtility.UploadImage
(_imageAsByteArray, imageName,
new RequestDataGenerator().generateRequestDataForMediaUpload(
(null != _imageItem.I_IS_PRIMARY && "1".Equals(_imageItem.I_IS_PRIMARY) ? "1" : "0"),
evidenceName
));
if (response != null && response.RawBytes.Length > 0)
{
var successMessage = MCSExtensions.CheckWebserviceResponseCode(response.StatusCode);
if (successMessage.Equals(Constants.STATUS_CODE_SUCCESS))
{
byte[] decryptedevidenceresponse = WebserviceED.finaldecryptedresponse(response.RawBytes);
string responseString = Encoding.UTF8.GetString(decryptedevidenceresponse, 0, decryptedevidenceresponse.Length);
JObject reponseObject = JObject.Parse(responseString);
//Debug.WriteLine("Evidence Upload Response : " + Environment.NewLine);
uploadedimageIdList.Add(reponseObject["P_RET_ID"].ToString());
try
{
if (image.IsEvidenceImage)
{
if (await FileExists(image.EvidencePath))
{
StorageFile file = await localFolder.GetFileAsync(image.EvidencePath);
await file.DeleteAsync();
}
}
else
{
string[] evidenceMedia = image.EvidencePath.Split('#');
foreach (string evidenceItem in evidenceMedia)
{
if (await FileExists(evidenceItem))
{
StorageFile file = await localFolder.GetFileAsync(evidenceItem);
await file.DeleteAsync();
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
else
{
UserMessageUtil.ShowMessage(successMessage);
}
}
}
}, cancellationToken);
uploadTasks.Add(currentTask);
}
}
await System.Threading.Tasks.Task.WhenAll(uploadTasks.ToArray());

Just make it a separate method:
...
foreach (var image in _imageCollection)
{
if (!cancellationToken.IsCancellationRequested)
{
currentTask = UploadAsync(...);
uploadTasks.Add(currentTask);
}
}
await Task.WhenAll(uploadTasks);
async Task UploadAsync(...)
{
string imageName = string.Empty;
string imagePath = string.Empty;
...
}
Or, a bit more simply at the call site:
...
var uploadTasks = _imageCollection.Select(x => UploadAsync(...));
await Task.WhenAll(uploadTasks);

You don't have permission to post in a group

I've finished a program in C# which integrates with Facebook and posts to more than one group in a click
but I am facing a problem right now when there is a group that you don't have a permission to post to I can't complete posting to the rest
here's the post function
I put it in other Class
public static bool PostImage(Frm form,string AccessToken, string Status, string ImagePath)
{
try
{
if (form.listBox2 .SelectedItems .Count > 0)
{
string item;
foreach (int i in form. listBox2.SelectedIndices)
{
item = form.listBox2.Items[i].ToString();
groupid = item;
FacebookClient fbpost = new FacebookClient(AccessToken);
var imgstream = File.OpenRead(ImagePath);
dynamic res = fbpost.Post("/" + groupid + "/photos", new
{
message = Status,
File = new FacebookMediaStream
{
ContentType = "image/jpg",
FileName = Path.GetFileName(ImagePath)
}.SetValue(imgstream)
});
result = true;
}
}
return result;
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message);
return false;
}
}

You need to put a try catch block inside the loop. Then, in the catch block you log the error (or do whatever you want with it) then continue the loop:
foreach (int i in form. listBox2.SelectedIndices)
{
try
{
item = form.listBox2.Items[i].ToString();
groupid = item;
FacebookClient fbpost = new FacebookClient(AccessToken);
var imgstream = File.OpenRead(ImagePath);
dynamic res = fbpost.Post("/" + groupid + "/photos", new
{
message = Status,
File = new FacebookMediaStream
{
ContentType = "image/jpg",
FileName = Path.GetFileName(ImagePath)
}.SetValue(imgstream)
});
result = true;
}
catch(exception excp)
{
//Do something with the exception
}
}
Now I don't know exactly how your code works, but this should give you a rough idea.