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Issues with Cefsharp and foreach loop

I'm new to working with async and I'm trying to build a Cefsharp application that collects data from an external API, stores it in local variables and then exports these through JavaScript to HTML. It's not a beautiful implementation and I'm sure my code is pretty awful but here goes:
My application performs a tick every 5 seconds, where it executes a HTTP Post request and stores the result in a QuickType (app.quicktype.io) list. This is the tick:
private async void timer1_Tick(object sender, EventArgs e)
{
await chromeBrowser.WaitForInitialLoadAsync();
if (httpPost.ConnectionSuccesful())
{
var devtoolsContext = await chromeBrowser.CreateDevToolsContextAsync();
var postResult = await httpPost.SendPost("robot_info");
try {
var result = Welcome.FromJson(postResult);
foreach (var robot in result.Result.Robots.Select((value, i) => (value, i)))
{
Console.WriteLine(robot.value.Id);
if (robot.value.ChargingStateCode == 9 || robot.value.ChargingStateCode == 12)
await devtoolsContext.EvaluateFunctionAsync("function setBatteryCharge() { var batteryLevel = jQuery('#robot" + robot.i + "Charge'); batteryLevel.css('width', "+ robot.value.StateOfCharge + " + '%'); batteryLevel.text('Charging'); batteryLevel.addClass('high'); batteryLevel.removeClass('medium'); batteryLevel.removeClass('low'); }");
else if (robot.value.StateOfCharge > 75)
await devtoolsContext.EvaluateFunctionAsync("function setBatteryHigh() { var batteryLevel = jQuery('#robot" + robot.i + "Charge'); batteryLevel.css('width', " + robot.value.StateOfCharge + " + '%'); batteryLevel.text(" + robot.value.StateOfCharge + " + '%'); batteryLevel.addClass('high'); batteryLevel.removeClass('medium'); batteryLevel.removeClass('low'); }");
else if (robot.value.StateOfCharge >= 50)
await devtoolsContext.EvaluateFunctionAsync("function setBatteryMedium() { var batteryLevel = jQuery('#robot" + robot.i + "Charge'); batteryLevel.css('width', " + robot.value.StateOfCharge + " + '%'); batteryLevel.text(" + robot.value.StateOfCharge + " + '%'); batteryLevel.addClass('medium'); batteryLevel.removeClass('high'); batteryLevel.removeClass('low'); }");
else
await devtoolsContext.EvaluateFunctionAsync("function setBatteryLow() { var batteryLevel = jQuery('#robot" + robot.i + "Charge'); batteryLevel.css('width', " + robot.value.StateOfCharge + " + '%'); batteryLevel.text(" + robot.value.StateOfCharge + " + '%'); batteryLevel.addClass('low'); batteryLevel.removeClass('high'); batteryLevel.removeClass('medium'); }");
}
}
catch (ArgumentNullException Nex) {
Console.Write("[Error] - " + Nex.Message);
}
catch (Exception ex)
{
Console.WriteLine("[Error] - " + ex.Message);
}
}
else
Console.WriteLine("[Error] - Check connection or access to API server.");
}
I'm currently trying to update the battery level and it successfully does this for the first tick (the JavaScript works as intended and both the css, classes and text is changed). Then it stops working. I've checked that the correct results are coming in from the HTTP Post and that the data is stored properly in the local variables. The problem seems to occur in the foreach. I've tried to read up about async a bit but I can't seem to find the culprit. After the first execution of the code, something seems to be blocking the iteration of the for each. I'm using Cefsharp.Winforms and Cefsharp.Puppeteer.
Any idea on why this is happening? Also thankful for any pointers or tips on how to improve the code.
EDIT: This is the Console Output
[Query] Sending post request to xxx with method 'robot_info'
[Success] - API Post Request was succesful.
PR1#11
PR1#15
[Query] Sending post request to xxx with method 'robot_info'
[Success] - API Post Request was succesful.
PR1#11
[Query] Sending post request to xxx with method 'robot_info'
[Success] - API Post Request was succesful.
PR1#11
The first iteration goes through fine.
EDIT2: This is the timer
public void InitTimer()
{
timer1 = new Timer();
timer1.Tick += new EventHandler(timer1_Tick);
timer1.Interval = 5000;
timer1.Start();
}
EDIT3: Method SendPost
public async Task<string> SendPost(string method)
{
HttpClient httpClient = new HttpClient();
string data = new JavaScriptSerializer().Serialize(new
{
jsonrpc = "2.0",
method = method,
id = Guid.NewGuid().ToString()
});
StringContent content = new StringContent(data, System.Text.Encoding.UTF8, "application/json");
try
{
Console.WriteLine("[Query] Sending post request to " + url.ToString() + " with method '" + method + "'");
HttpResponseMessage response = await httpClient.PostAsync(url, content).ConfigureAwait(false);
string result = await response.Content.ReadAsStringAsync();
if (IsValidJson(result))
{
Console.WriteLine("[Success] - API Post Request was succesful.");
return result;
}
else
return null;
} catch (HttpRequestException hre)
{
Console.WriteLine("[Error]: " + hre);
return null;
}
}
EDIT4: Structure of Welcome
public partial class Welcome
{
[JsonProperty("jsonrpc")]
public string Jsonrpc { get; set; }
[JsonProperty("result")]
public Result Result { get; set; }
[JsonProperty("id")]
public string Id { get; set; }
}
public partial class Result
{
[JsonProperty("timestamp")]
public long Timestamp { get; set; }
[JsonProperty("robots")]
public List<Robot> Robots { get; set; }
}
Robots is a list with a bunch of longs and ints.

Binance API place order

How do I place an order for futures? I am getting two errors: "The required timestamp parameter was not sent, was empty / null, or is not well formed." OR "The signature for this request is not valid."
public static async void Order()
{
string base_uri = "https://fapi.binance.com/fapi/v1/order?";
string API_Key = "bSQQlu2k5tf0oSUGZsNGptisIxXLux8wb............................";
string Secret_Key = "gWPKP66geFL0ryijnlU3TTepS61.............................";
string symbol = "XRPUSDT";
string side = "BUY";
string type = "MARKET";
string timeInForce = "GTC";
decimal quantity = 20;
long recvWindow = 5000;
long timestamp = GetServerTime();
string queryString = "symbol=" + symbol + "&side=" + side + "type=" + type + "&timeInForce=" + timeInForce;
string signature = HMACHASH(queryString, Secret_Key);
var Payload = new Credentials
{
Quantity = quantity,
RecvWindow = recvWindow,
Timestamp = timestamp,
Signature = signature
};
var stringPayload = JsonConvert.SerializeObject(Payload);
var httpContent = new StringContent(stringPayload, Encoding.UTF8, "application/json");
httpContent.Headers.Add("X-MBX-APIKEY", API_Key);
using (var httpClient = new HttpClient())
{
var httpResponse = await httpClient.PostAsync(base_uri + queryString, httpContent);
if (httpResponse.Content != null)
{
var responseContent = await httpResponse.Content.ReadAsStringAsync();
Console.WriteLine(responseContent);
}
}
}
This is how I get the timestamp
public static long GetServerTime()
{
string str = BinanceResponse("https://fapi.binance.com/fapi/v1/time");
string[] arr = str.Split('\"');
str = arr[2].Trim(':', '}');
return long.Parse(str);
}
Credentials class
internal class Credentials
{
[JsonProperty("quantity")]
public decimal Quantity { get; set; }
[JsonProperty("recvWindow")]
public long RecvWindow { get; set; }
[JsonProperty("timestamp")]
public long Timestamp { get; set; }
[JsonProperty("signature")]
public string Signature { get; set; }
}
After serialization
stringPayload = "{"quantity":20.0,"recvWindow":5000,"timestamp":1625061703897,"signature":"2794e66d4e5b5b6338782e058747a567db523.........................."}"
If I try like this:
string queryString = "symbol=" + symbol + "&side=" + side + "&type=" + type +
"&timeInForce=" + timeInForce + "&quantity=" + quantity + "&recvWindow=" +
recvWindow + "&timestamp=" + timestamp;
string signature = HMACHASH(queryString, Secret_Key);
queryString += "&signature=" + signature;
Error: "The signature for this request is not valid."
Resolved!
Thank you guys! I used Fiddler and found out that the "timeInForce" parameter is not needed for a type = "MARKET". All the problems were because of him.
string queryString = "symbol=" + symbol + "&side=" + side + "&type=" + type +
̶"̶&̶t̶i̶m̶e̶I̶n̶F̶o̶r̶c̶e̶=̶"̶ ̶+̶ ̶t̶i̶m̶e̶I̶n̶F̶o̶r̶c̶e̶ + "&quantity=" + quantity + "&recvWindow=" +
recvWindow + "&timestamp=" + timestamp;

I highly recommend the Binance Postman collection on GitHub to see how to structure your requests:
Binance Postman Collection
Following this I also recommend the Binance Signature Examples found here: Binance Signature Examples
It looks like your signature is being generated without including all of the parameters of the request.
Binance supports setting your parameters for a post request either in the body or in the URL. Personally I've only used everything in the URL, but the signature has to verify all of the parameters, whereas your queryString variable is being converted into a signature, but other data is being sent in the payload afterwards and is not included in the signature.

The response is in the error report. The Binance API require you to send an timestamp.
So you are probably not sending a correct timestamp or not correctly name it.
You can check your requests with an http sniffer like Fiddler.
It's possible that the API is case sensitive so, timestamp should not be "Timestamp" after the serialization. Check it
EDIT: Can you provide the documentation that you used to create the request ? Because the official binance API is asking for POST parameters only

Need help to find where does API takes data from in ASP.NET MVC

I am a begginer and i work in a MVC project which I cant understand it well yet.
I can't understand where does the API takes data from when I try to connect in Login Screen.
It doesn't use Entity Framework and there isn't a json with the data.
When I enter Id and Pass it calls an API (GetAPIResponse) which somehow finds that is correct.
Need help to understand the code and the logic behind it.
LoginBL class contains:
public bool IsAuthenticated(LoginEntity user)
{
string url = string.Empty;
string callType = string.Empty;
string server = string.Empty;
try
{
// get URL, Call type, Server from config file
url = ConfigurationManager.AppSettings["login_url"].ToString();
callType = ConfigurationManager.AppSettings["calltype"].ToString();
server = ConfigurationManager.AppSettings["server"].ToString();
// Encrypt password
string password = Scrambler.GenerateMD5Hash(user.Password);
// Prepare content for the POST request
string content = #"calltype=" + callType + "&server=" + server + "&user=" + user.UserName + "&pass=" + password + "";
Debug.WriteLine("Callcenter login url: " + content);
HttpResponseMessage json_list = ApiCallBL.GetAPIResponse(url, content);
LoginResponseEntity obj = new LoginResponseEntity();
obj = JsonConvert.DeserializeObject<LoginResponseEntity>(json_list.Content.ReadAsStringAsync().Result);
Debug.WriteLine(callType + " Response: " + json_list.Content.ReadAsStringAsync().Result);
//if API resultCode return 0 then user details and token save in session for further use
if (obj.ResultCode == 0)
{
int restrict = obj.UserInfo.RestrictCallType.HasValue ?
obj.UserInfo.RestrictCallType.Value : 0;
HttpContext.Current.Session["user_id"] = obj.UserInfo.usr_id;
HttpContext.Current.Session["user_name"] = obj.UserInfo.usr_username;
HttpContext.Current.Session["user_group_id"] = obj.UserInfo.UserGroupID;
HttpContext.Current.Session["groupid"] = obj.UserInfo.groupid;
HttpContext.Current.Session["token"] = obj.Token;
HttpContext.Current.Session["web_server_url"] = obj.ServerInfo.web_server_url;
HttpContext.Current.Session["centerX"] = obj.ServerInfo.DefaultGeoX;
HttpContext.Current.Session["centerY"] = obj.ServerInfo.DefaultGeoY;
HttpContext.Current.Session["dateFormat"] = obj.ServerInfo.dateFormat;
HttpContext.Current.Session["currency"] = obj.ServerInfo.currency;
HttpContext.Current.Session["customer_img"] = obj.ServerInfo.customer_img;
HttpContext.Current.Session["groups"] = obj.groups;
HttpContext.Current.Session["restrict_call_type"] = restrict ;
Debug.WriteLine("obj.UserInfo.UserGroupID " + obj.UserInfo.UserGroupID);
Debug.WriteLine("obj.UserInfo.groups " + obj.groups);
//HttpContext.Current.Session["defaultLanguage"] = obj.ServerInfo.defaultLanguage;
HttpCookie cookie = new HttpCookie("Login");
// if remember me checked then user name and password stored in cookie else cookes is expired
if (user.RememberMe)
{
cookie.Values.Add("user_name", obj.UserInfo.usr_username);
cookie.Values.Add("pwd", user.Password);
cookie.Expires = DateTime.Now.AddDays(15);
HttpContext.Current.Response.Cookies.Add(cookie);
}
else
{
cookie.Expires = DateTime.Now.AddDays(-1);
HttpContext.Current.Response.Cookies.Add(cookie);
}
return true;
}
else
{
//ResultCode -5 :Invalid Login ,-1:Database Error ,-2:Server Error ,-3:Invalid Parameter specified ,-4:Invalid Token
return false;
}
}
catch
{
throw;
}
finally
{
url = string.Empty;
callType = string.Empty;
server = string.Empty;
}
}
Okay here after converts pass to MD5 creates a "string content" with the information given.
Then in next line (HttpResponseMessage json_list = ApiCallBL.GetAPIResponse(url, content);) calls the API with the url and content as parameters where it finds if the data exists.
API code:
public static HttpResponseMessage GetAPIResponse(string url, string content)
{
StringBuilder traceLog = null;
HttpContent httpContent = null;
try
{
traceLog = new StringBuilder();
traceLog.AppendLine("Start: BusinessLayer getAPIResponse() Request Data:- " + DateTime.Now + "URL = " + url + "&content = " + httpContent);
using (HttpClient client = new HttpClient())
{
httpContent = new StringContent(content);
httpContent.Headers.ContentType = new MediaTypeHeaderValue("application/x-www-form-urlencoded");
var resp = client.PostAsync(url, httpContent).Result;
Debug.WriteLine("resp: " + resp.Content.ReadAsStringAsync().Result);
traceLog.AppendLine("End: BusinessLayer getAPIResponse() call completed HttpResponseMessage received");
return resp;
}
}
catch
{
throw;
}
finally
{
traceLog = null;
httpContent.Dispose();
url = string.Empty;
content = string.Empty;
}
}
In the following line, console prints the result that I cant understand where it cames from (Debug.WriteLine("resp: " + resp.Content.ReadAsStringAsync().Result);)
Sorry for the confusion , I am in my first job with zero work experience and I am called to learn how this works alone without proper education on ASP.NET from them.

You will not go very far without debbugger. Learn how to debug in Visual Studio (YouTube tutorials might be fastest way). Place debug points along critical points in code (for example moment when client sends and receives response is line var resp = client.PostAsync...) and check variables.
Url for API server is actually defined in the line
url = ConfigurationManager.AppSettings["login_url"].ToString();
ConfigurationManager means Web.config file, check it's appSettings section for login_url entry, there is your url.
Btw, using (HttpClient client = new HttpClient()) is not a good way to use a HttpClient and will lead to port exhaustion. It's ok for small number of requests, but for larger ones you must reuse it, or use HttpClientFactory (for .NET Core).

How do invoke the Paypal IPN using the REST API c# .net

I am having problems invoking the PayPal IPN. I dont know which URL to give or which URL i am meant to give. I have looked all over the internet for help but there does not seem to be anything available hence why i have come here.
So firstly, i have the PaymentWithPaypal Action
public ActionResult PaymentWithPaypal(int? id, Page page)
{
//getting the apiContext as earlier
APIContext apiContext = Models.Configuration.GetAPIContext();
try
{
string payerId = Request.Params["PayerID"];
if (string.IsNullOrEmpty(payerId))
{
string baseURI = Request.Url.Scheme + "://" + Request.Url.Authority + "/ControllerName/PaymentWithPayPal?";
var guid = Guid.NewGuid().ToString();
//CreatePayment function gives us the payment approval url
//on which payer is redirected for paypal acccount payment
var createdPayment = this.CreatePayment(apiContext, baseURI + "guid=" + guid);
//get links returned from paypal in response to Create function call
var links = createdPayment.links.GetEnumerator();
string paypalRedirectUrl = null;
while (links.MoveNext())
{
Links lnk = links.Current;
if (lnk.rel.ToLower().Trim().Equals("approval_url"))
{
//saving the payapalredirect URL to which user will be redirected for payment
paypalRedirectUrl = lnk.href;
}
}
// saving the paymentID in the key guid
Session.Add(guid, createdPayment.id);
return Redirect(paypalRedirectUrl);
}
else
{
// This section is executed when we have received all the payments parameters
// from the previous call to the function Create
// Executing a payment
var guid = Request.Params["guid"];
var executedPayment = ExecutePayment(apiContext, payerId, Session[guid] as string);
if (executedPayment.state.ToLower() != "approved")
{
return View("FailureView");
}
}
}
catch (Exception ex)
{
Logger.Log("Error" + ex.Message);
return View("FailureView");
}
return View("SuccessView");
}
This is the code for the IPN.
[HttpPost]
public HttpStatusCodeResult Receive()
{
//Store the IPN received from PayPal
LogRequest(Request);
//Fire and forget verification task
Task.Run(() => VerifyTask(Request));
//Reply back a 200 code
return new HttpStatusCodeResult(HttpStatusCode.OK);
}
private void VerifyTask(HttpRequestBase ipnRequest)
{
var verificationResponse = string.Empty;
try
{
var verificationRequest = (HttpWebRequest)WebRequest.Create("https://www.sandbox.paypal.com/cgi-bin/webscr");
//Set values for the verification request
verificationRequest.Method = "POST";
verificationRequest.ContentType = "application/x-www-form-urlencoded";
var param = Request.BinaryRead(ipnRequest.ContentLength);
var strRequest = Encoding.ASCII.GetString(param);
//Add cmd=_notify-validate to the payload
strRequest = "cmd=_notify-validate&" + strRequest;
verificationRequest.ContentLength = strRequest.Length;
//Attach payload to the verification request
var streamOut = new StreamWriter(verificationRequest.GetRequestStream(), Encoding.ASCII);
streamOut.Write(strRequest);
streamOut.Close();
//Send the request to PayPal and get the response
var streamIn = new StreamReader(verificationRequest.GetResponse().GetResponseStream());
verificationResponse = streamIn.ReadToEnd();
streamIn.Close();
}
catch (Exception exception)
{
Logger.Log("Error" + exception.Message);
//Capture exception for manual investigation
}
ProcessVerificationResponse(verificationResponse);
}
private void LogRequest(HttpRequestBase request)
{
// Persist the request values into a database or temporary data store
}
private void ProcessVerificationResponse(string verificationResponse)
{
if (verificationResponse.Equals("VERIFIED"))
{
Logger.Log("Verified");
// check that Payment_status=Completed
// check that Txn_id has not been previously processed
// check that Receiver_email is your Primary PayPal email
// check that Payment_amount/Payment_currency are correct
// process payment
}
else if (verificationResponse.Equals("INVALID"))
{
Logger.Log(verificationResponse);
}
else
{
//Log error
}
}
Now to clear things up. My understanding of the IPN is that when a customer purchases an item, the SELLER will get an email telling them that they have sold a product and then from this you can access transactionId etc.
So in my view i have a form with a button that looks like this.
#Html.ActionLink("Buy Now", "PaymentWithPaypal", new { Id = Model.Id, #class = "" })
This is what takes the customer to paypal where they can then purchase but this is where i am stuck because im not sure how to call the IPN or if it needs its own view.
ANY CLARITY WOULD BE OF MUCH HELP AT THIS MOMENT IN TIME.

One way is to put this under PayPal account settings. Once you click on your "App", below it you see the redirect url option. Just add it there. Paypal .net sdk doesn't have the option to pass notify_url. All other modes have. Because, paypal.net sdk accepts return_url which is usually the same action method as also mentioned in your code.
Check this:
https://developer.paypal.com/docs/classic/ipn/integration-guide/IPNSetup/#
In case you want to achieve real time events, you need to use webhooks now. Documentation below:
https://github.com/paypal/PayPal-NET-SDK/wiki/Webhook-Event-Validation

Programmatically unsubscribe a YouTube user C#

Here is my code for a mass unsubscriber i am making, currently everything works - other than the unsubscribe feature.. (Typical huh)
public void UnSubUsers()
{
string feedUrl = "http://gdata.youtube.com/feeds/api/users/" + username.Text + "/subscriptions";
YouTubeQuery query = new YouTubeQuery(feedUrl);
subFeed = service.GetSubscriptions(query);
YouTubeRequestSettings yts = new YouTubeRequestSettings("Unsubscriber", DEVKEY, username.Text, password.Text);
YouTubeRequest request = new YouTubeRequest(yts);
int i = 0;
int x = 0;
x = (listBox1.Items.Count);
for (i=0;i<x ;i++ )
{
string uname = listBox1.Items[i].ToString();
uname=uname.Substring(42);
uname = uname.Remove(uname.LastIndexOf("/"));
Subscription s = new Subscription();
s.Type = SubscriptionEntry.SubscriptionType.channel;
s.UserName = uname;
//MessageBox.Show(uname); //Displays the username so that we know if it is correct
try
{
s.AtomEntry.EditUri = "http://gdata.youtube.com/feeds/api/users/" + username.Text + "/subscriptions";
s.SubscriptionEntry.EditUri = "http://gdata.youtube.com/feeds/api/users/" + username.Text + "/subscriptions";
request.Delete(s);
}
catch (ArgumentNullException e)
{
MessageBox.Show(e.ToString(), "Error");
}
catch (GDataRequestException e)
{
MessageBox.Show(e.ToString(), "Error");
}
}
}
(Also available at http://pastebin.com/LnKMYCJp)
When the code "reaches" request.Delete(s) it gives me this error:
Google.GData.Client.GDataRequestException: Execution of request failed: http://gdata.youtube.com/feeds/api/users/iWinterHD/subscriptions --->System.Net.WebException: The remote server returned an error: (400) Bad Request.
at System.Net.HttpWebRequest.GetResponse()
at Google.GData.Client.GDataRequest.Execute()
--- End of inner exception stack trace ---
at Google.GData.Client.GDataRequest.Execute()
at Google.GData.Client.GDataGAuthRequest.Execute(Int32 retryCounter)
at Google.GData.Client.GDataGAuthRequest.Execute()
at Google.GData.Client.Service.Delete(Uri uriTarget, String eTag)
at Google.GData.Client.FeedRequest1.Delete[Y](Y entry)
at Unsubscriber.SubForm.UnSubUsers() in C:\Users\iWinterHD\documents\visual studio 2010\Projects\Unsubscriber\Unsubscriber\SubForm.cs:line 112
Does anybody know how to fix this, I have been trying to get this working for around 2 hours and I am still getting this error, no matter what I try
When i used fiddler to find out info about the connection this was the header:
DELETE /feeds/api/users/iWinterHD/subscriptions HTTP/1.1
Content-Type: application/atom+xml; charset=UTF-8
User-Agent: G-Unsubscriber/GDataGAuthRequestFactory-CS-Version=2.1.0.0--IEnumerable
X-GData-Key: key=DEVELOPER_KEY
Authorization: GoogleLogin auth=DQAAAMgAAAAfAWmos6z7rpaY8JrK2RNK4Urf7Riu_putKeGgV1KFH5OEmAYA2t5w0DWXbVQJnizQiPmLSl-4D0eCozYn5jVp4DWs4Rpao3udc3eTIC9wibBGRe640m7zZjl96UnFMyf-fJDk0VrTIcAw74S7_WhwBaRDjLS77EOWfERw066NmcYO-2QB_6WZ4Y0o3Y4haVn_pRokm8ckyuTRWJf6cES1yVlZ4fP5diUySVsH7EaHLiUcAquUl7GWCMdF_JbjRVVxvgeMW1zV757JW8l841uk
GData-Version: 2.0
Host: gdata.youtube.com
Connection: Keep-Alive
However the Google Developers example is this:
DELETE /feeds/api/users/default/subscriptions/SUBSCRIPTION_ID HTTP/1.1
Host: gdata.youtube.com
Content-Type: application/atom+xml
Authorization: Bearer ACCESS_TOKEN
GData-Version: 2
X-GData-Key: key=DEVELOPER_KEY
Hopefully that gives a little heads up :)

After a bit of playing around with the API I think I've found the solution.
The AtomEntry.EditUri needs to be the same as the URI to the individual subscription. As it happens this is already stored in the SubscriptionEntry object (which you're overwriting).
Your code should look something like:
itemToRemove.AtomEntry.EditUri = itemToRemove.SubscriptionEntry.EditUri;
Here's the code I used to test this:
var subscriptionsUrl =
"http://gdata.youtube.com/feeds/api/users/warmthonthesoul/subscriptions";
var settings = new YouTubeRequestSettings([...]);
var request = new YouTubeRequest(settings);
var query = new YouTubeQuery(subscriptionsUrl);
var feed = request.GetSubscriptionsFeed("warmthonthesoul").Entries;
var itemToRemove = feed.SingleOrDefault(x =>
x
.SubscriptionEntry
.Title.Text.Contains("Triforcefilms"));
if(itemToRemove != null)
{
itemToRemove.AtomEntry.EditUri = itemToRemove
.SubscriptionEntry
.EditUri;
request.Delete(itemToRemove);
Console.WriteLine("Item removed");
}
Console.ReadLine();
}

After searching through all the variables for around 4 hours i ended up stumbling upon the ID variable, which i later discovered needed to be passed to the final URL in order to remove the subscription WITH that ID, I tested it and it worked perfectly!
public void ListSubs()
{
string feedUrl = "http://gdata.youtube.com/feeds/api/users/" + username.Text + "/subscriptions";
YouTubeQuery query = new YouTubeQuery(feedUrl);
try
{
subFeed = service.GetSubscriptions(query);
foreach (SubscriptionEntry entry in subFeed.Entries)
{
string id = entry.Id.AbsoluteUri;
id = id.Substring(id.LastIndexOf(":")+1);
listBox1.Items.Add(id);
string usrname = entry.Content.Src.Content;
usrname = usrname.Substring(42);
usrname = usrname.Remove(usrname.LastIndexOf("/"));
listBox2.Items.Add(usrname);
}
}
catch(GDataRequestException e)
{
MessageBox.Show(e.ToString(), "Error:");
}
}
public void UnSubUsers()
{
YouTubeRequestSettings yts = new YouTubeRequestSettings("Unsubscriber", DEVELOPER_KEY, username.Text, password.Text);
YouTubeRequest request = new YouTubeRequest(yts);
int i = 0;
int x = 0;
x = (listBox1.Items.Count);
for (i=0;i<x ;i++ )
{
string uname = listBox1.Items[i].ToString();
yts = new YouTubeRequestSettings("Unsubscriber", DEVELOPER_KEY, username.Text, password.Text);
request = new YouTubeRequest(yts);
Subscription s = new Subscription();
s.Type = SubscriptionEntry.SubscriptionType.channel;
s.UserName = uname;
s.Id = listBox1.Items[i].ToString()
try
{
s.AtomEntry.EditUri = "http://gdata.youtube.com/feeds/api/users/" + username.Text + "/subscriptions" + "/" + listBox1.Items[i].ToString();
request.Delete(s);
}
catch (ArgumentNullException e)
{
}
catch (GDataRequestException e)
{
}
}
}
I had to add the subscription ID to the URL i was using to delete the subscription, here is my code to add the subscription ID to the listbox i originally used to store usernames, it turns out you can't pass usernames to the Delete method, but this works just as well because i added a second listbox to find the usernames of the subscription IDs
string id = entry.Id.AbsoluteUri;
id = id.Substring(id.LastIndexOf(":")+1);
listBox1.Items.Add(id);
This code gets the subscription ID from the entry variable, you then add the subscription ID to the EditUri variable:
s.AtomEntry.EditUri = "http://gdata.youtube.com/feeds/api/users/" + username.Text + "/subscriptions" + "/" + listBox1.Items[i].ToString();
request.Delete(s);
My mass unsubscriber is now complete!
Many thanks to #JamieDixon for all his wonderful help!