We Keep Coding

HttpClient high data usage when getting remote file size

I'm getting the file size of remote urls and I just noticed the difference between HttpClient and httpWebRequest.
I compared and I noticed that httpclient is taking too much data.
this is a big issue for me because, in the Philippines we are only have limited data
Could you please tell me what's wrong with my httpclient class? I can't figure out what is causing the high data usage
HttpClient
HttpClientHandler handler = new HttpClientHandler()
{
Proxy = null,
UseProxy = false,
AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate
};
var client = new HttpClient(handler);
client.DefaultRequestHeaders.Add("Method", "GET");
client.DefaultRequestHeaders.Add("Referer", uriPath.AbsoluteUri);
client.DefaultRequestHeaders.Add("Origin", "https://www.samplesite.com");
client.DefaultRequestHeaders.ConnectionClose = true;
client.DefaultRequestHeaders.UserAgent.ParseAdd("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("gzip"));
client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("deflate"));
using (HttpResponseMessage response = await client.GetAsync(uriPath, HttpCompletionOption.ResponseHeadersRead, token).ConfigureAwait(false))
{
response.EnsureSuccessStatusCode();
return await response.Content.ReadAsStringAsync();
var resultTask = response.Content.ReadAsStringAsync();
var timeoutTask = Task.Delay(3000);
var completed = await Task.WhenAny(resultTask, timeoutTask).ConfigureAwait(false);
if (completed == timeoutTask)
return null;
return await resultTask;
}
HttpWebRequest
var webRequest = (HttpWebRequest)WebRequest.Create(uriPath);
webRequest.Method = "HEAD";
webRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36";
using (var webResponse = await webRequest.GetResponseAsync())
{
return await Task.Run(() => webResponse.Headers.Get("Content-Length"), token);
}

You are using different HTTP methods GET in case of HttpClient & HEAD in case of WebRequest. To get file size you will enough HEAD method in both cases
The HTTP GET method requests a representation of the specified resource. Requests using GET should only retrieve data.
The HTTP HEAD method requests the headers that are returned if the specified resource would be requested with an HTTP GET method. Such a request can be done before deciding to download a large resource to save bandwidth, for example.
You need to change this code line
client.DefaultRequestHeaders.Add("Method", "GET");
it MUST BE
client.DefaultRequestHeaders.Add("Method", "HEAD");
A response to a HEAD method does not have a body in contradistinction to GET
UPD: use SendAsync method (not GetAsync)
HttpClientHandler handler = new HttpClientHandler();
using var client = new HttpClient(handler);
string requestUri = "enter request uri";
HttpRequestMessage message = new HttpRequestMessage(HttpMethod.Head, requestUri);
using var response = await client.SendAsync(message);

Finally it's solved Big thanks to #Dmitry
Here's the HttpClient updated code
public static async Task<string> GetTotalBytes(Uri uriPath)
{
HttpClientHandler handler = new HttpClientHandler();
handler.Proxy = null;
using (var client = new HttpClient(handler))
{
HttpRequestMessage message = new HttpRequestMessage(HttpMethod.Head, uriPath);
using (var response = await client.SendAsync(message))
{
response.EnsureSuccessStatusCode();
var lenght = response.Content.Headers.ContentLength;
return lenght.ToString();
}
}
}
RESULT (HttpClient):
Total URL: 355
Filsize: 1.14 GB
Elapsed Time: 0h 0m 2s 51.3ms
and here's HttpWebRequest (Maybe someone will need)
var webRequest = (HttpWebRequest)WebRequest.Create(uriPath);
webRequest.Method = "HEAD";
webRequest.Proxy = null;
using (var webResponse = await webRequest.GetResponseAsync())
{
return await Task.Run(() => webResponse.Headers.Get("Content-Length"), token);
}

System.Net.Http.HttpRequestException with UnauthorizedException

I am trying to convert my Python code into C# code but I got some exceptions during the translation.
What I want is to fetch json/string data from the url. I am new to C# network programming. I tried several ways, read there documents, google their usages, but I still couldn't find out the correct way, as I keep getting the exceptions in the title.
This is my Python code that works:
url = 'https://c.y.qq.com/soso/fcgi-bin/client_search_cp'
params = {
'ct': 24,
'qqmusic_ver': 1298,
'new_json': 1,
'remoteplace':'sizer.yqq.lyric_next',
'searchid': 63514736641951294,
'aggr': 1,
'cr': 1,
'catZhida': 1,
'lossless': 0,
'sem': 1,
't': 7,
'p': 1,
'n': 1,
'w': keyword,
'g_tk': 1714057807,
'loginUin': 0,
'hostUin': 0,
'format': 'json',
'inCharset': 'utf8',
'outCharset': 'utf-8',
'notice': 0,
'platform': 'yqq.json',
'needNewCode': 0
}
headers = {
'content-type': 'application/json',
'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0',
'referer':'https://y.qq.com/portal/search.html'
}
result = requests.get(url, params = params, headers = headers)
This is the C# code that I have tried:
public static async Task<string> SearchLyrics(string keyword)
{
keyword = Uri.EscapeUriString(keyword);
// method 1
string uri = $"https://c.y.qq.com/soso/fcgi-bin/client_search_cp?ct=24&qqmusic_ver=1298&new_json=1&remoteplace=sizer.yqq.lyric_next&searchid=63514736641951294&aggr=1&cr=1&catZhida=1&lossless=0&sem=1&t=7&p=1&n=1&w={keyword}&g_tk=1714057807&loginUin=0&hostUin=0&format=json&inCharset=utf8&outCharset=utf-8&notice=0&platform=yqq.json&needNewCode=0";
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(uri);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
using (var request = new HttpRequestMessage(HttpMethod.Get, uri))
{
request.Headers.Add("User-Agent", "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0");
request.Headers.Add("referer", "https://y.qq.com/portal/search.html");
var response = await client.SendAsync(request);
//response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
return await response.Content.ReadAsStringAsync();
}
}
// method 2
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("ct", "24");
client.DefaultRequestHeaders.Add("qqmusic_ver", "1298");
client.DefaultRequestHeaders.Add("new_json", "1");
client.DefaultRequestHeaders.Add("remoteplace", "sizer.yqq.lyric_next");
client.DefaultRequestHeaders.Add("searchid", "63514736641951294");
client.DefaultRequestHeaders.Add("aggr", "1");
client.DefaultRequestHeaders.Add("catZhida", "1");
client.DefaultRequestHeaders.Add("lossless", "0");
client.DefaultRequestHeaders.Add("t", "7");
client.DefaultRequestHeaders.Add("p", "1");
client.DefaultRequestHeaders.Add("n", "1");
client.DefaultRequestHeaders.Add("w", keyword);
client.DefaultRequestHeaders.Add("g_tk", "1714057807");
client.DefaultRequestHeaders.Add("loginUin", "0");
client.DefaultRequestHeaders.Add("hostUin", "0");
client.DefaultRequestHeaders.Add("format", "json");
client.DefaultRequestHeaders.Add("inCharset", "utf8");
client.DefaultRequestHeaders.Add("outCharset", "utf-8");
client.DefaultRequestHeaders.Add("notice", "0");
client.DefaultRequestHeaders.Add("platform", "yqq.json");
client.DefaultRequestHeaders.Add("needNewCode", "0");
using (var request = new HttpRequestMessage(HttpMethod.Get, "https://c.y.qq.com/soso/fcgi-bin/client_search_cp"))
{
request.Headers.Add("User-Agent", "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0");
request.Headers.Add("referer", "https://y.qq.com/portal/search.html");
var response = await client.SendAsync(request);
//response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
return await response.Content.ReadAsStringAsync();
}
}
}

The problem is that I didn't enable network access ability for my uwp app. Adding it in the Package.appxmanifest would solve this issue.
My code is right but I have made some improvements according to the Microsoft Document:
public static async Task<string> SearchLyrics(string keyword)
{
string uri = $"https://c.y.qq.com/soso/fcgi-bin/client_search_cp?ct=24&qqmusic_ver=1298&new_json=1&remoteplace=sizer.yqq.lyric_next&searchid=63514736641951294&aggr=1&cr=1&catZhida=1&lossless=0&sem=1&t=7&p=1&n=1&w={Uri.EscapeUriString(keyword)}&g_tk=1714057807&loginUin=0&hostUin=0&format=json&inCharset=utf8&outCharset=utf-8&notice=0&platform=yqq.json&needNewCode=0";
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.UserAgent.TryParseAdd("Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0");
var response = await client.GetAsync(uri);
response.EnsureSuccessStatusCode();
var content = await response.Content.ReadAsStringAsync();
Windows.Data.Json.JsonObject json = Windows.Data.Json.JsonObject.Parse(content);
return json.GetNamedObject("data").GetNamedObject("lyric").GetNamedArray("list").GetObjectAt(0).GetNamedString("content");
}
}

API error 401 Unauthorized laravel C Sharp

I am developing an application using C # that calls a RESTApi de laravel. Through Postman it works correctly, but instead of C# no, it returns error 401.
If I remove the following if in the Laravel controller it works fine:
if ($ request-> isJson ()) {
The header Content-Type is set to application/json
Laravel Code
function getResult(Request $request, $id)
{
if ($request->isJson()) {
// Eloquent
$times = Result::selectRaw('THE SELECT')
->where('ID', $Id)
->get();
$result = [];
foreach($times as $key => $time)
{
...........
}
sort($result);
return response()->json(['results'=>$result], 200);
}
return response()->json(['error' => 'Unauthorized'], 401, []);
}
C#
public static async Task<dynamic> GETTimes(int eventID, int stageID)
{
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(baseUrl);
client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json");
client.DefaultRequestHeaders.TryAddWithoutValidation("cache-control", "no-cache");
client.DefaultRequestHeaders.Add("User-Agent", #"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36");
// Add the Authorization header with the AccessToken.
//client.DefaultRequestHeaders.Add("Authorization", "Bearer " + accessToken);
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
// create the URL string.
string url = string.Format("api/v1/events/{0}/results/{1}", eventID, stageID);
// make the request
HttpResponseMessage response = await client.GetAsync(url);
// parse the response and return the data.
string jsonString = await response.Content.ReadAsStringAsync();
object responseData = JsonConvert.DeserializeObject(jsonString);
return (dynamic)responseData;
}
}

C# HttpClient wont add Cookies from CookieContainer to request

Cookies from CookieContainer are not added to Get or Post requests. Other headers work without a problem. What is the correct way to add cookies? I have done this before without a problem but I can't locate the error here.
var cookieContainer = new CookieContainer();
var handler = new HttpClientHandler();
handler.AllowAutoRedirect = true;
handler.UseCookies = true;
handler.CookieContainer = cookieContainer;
var baseAddress = new Uri("https://www.example.se");
cookieContainer.Add(baseAddress, new Cookie("Testing", "Test"));
//This did not work either
//cookieContainer.Add(baseAddress, new Cookie("Testing", "Test", "/"));
using (var client = new HttpClient(new LoggingHandler(handler)))
{
client.BaseAddress = baseAddress;
client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36");
client.DefaultRequestHeaders.Add("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
client.DefaultRequestHeaders.Add("Accept-Language", "sv-SE,sv;q=0.8,en-US;q=0.6,en;q=0.4");
var getResponse = client.GetAsync("/test").Result;
string responseString = getResponse.Content.ReadAsStringAsync().Result;
}
LoggingHandler:
https://stackoverflow.com/a/18925296/3850405

For some reason cookies aren't in the HttpRequestMessage headers when using CookieContainer. If I checked my CookieContainer object they were there though.
var cookieList = new List<Cookie>();
foreach (Cookie cookie in cookieContainer.GetCookies(baseAddress))
{
cookieList.Add(cookie);
}

The same code works using HttpWebRequest but not using HttpRequestMessage

I've created HttpClient that I'm using for sending requests:
public static void Initialize()
{
handler = new HttpClientHandler() { UseCookies = false, AllowAutoRedirect = true };
http = new HttpClient(handler) { BaseAddress = new Uri("http://csgolounge.com/mytrades") };
http.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36");
}
After that I'm creating instance of custom class that stores the cookies string for an account (something like id=xxxxxxxx; tkz=xxxxxxxxxx; token=xxxxxxxxxxx.
That's how I'm sending a post request:
public async Task Bump()
{
//if (Bumpable)
//{
var req = new HttpRequestMessage(HttpMethod.Post, "http://www.csgolounge.com/ajax/bumpTrade.php");
req.Headers.Add("Cookie", cookieString);
req.Headers.Add("X-Requested-With", "XMLHttpRequest");
req.Headers.Add("Referer", "http://csgolounge.com/mytrades"); //Not really sure if this does anything but I've run out of smart ideas long time ago
/*Dictionary<string, string> postData = new Dictionary<string, string>()
{
{"trade", offer_id}
};
var encoded = new FormUrlEncodedContent(postData);
*/
req.Content = new StringContent("&trade="+Offer_id, Encoding.UTF8, "application/x-www-form-urlencoded"); //Desperation.. decided to change the encoded dictionary to StringContent
var res = await SteamAccount.http.SendAsync(req);
var html = await res.Content.ReadAsStringAsync();
//}
}
I don't get what's wrong with this code. It seems correct to me.
Also, when I set AllowAutoRedirect = false it returns 301: Moved Permanently error, while normally it returns 200 with no HTML no matter what I pass as content.
What am I doing wrong?
Edit: Here's the JavaScript function I'm basing my request on:
function bumpTrade(trade) {
$.ajax({
type: "POST",
url: "ajax/bumpTrade.php",
data: "trade=" + trade
});
}
I've worked with more complex AJAX before, but this just doesn't seem to work no matter what I do.
Edit: I've lost my patience and switched to HttpWebRequest instead.
Now the method looks like this:
public async Task BumpLegacy()
{
while (true)
{
try
{
HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create("http://csgolounge.com/ajax/bumpTrade.php");
var cc = new CookieContainer();
MatchCollection mc = Regex.Matches(Account.CookieString, #"\s?([^=]+)=([^;]+);");
foreach (Match m in mc)
cc.Add(new Cookie(m.Groups[1].Value, m.Groups[2].Value, "/", "csgolounge.com"));
httpWebRequest.CookieContainer = cc;
byte[] bytes = Encoding.ASCII.GetBytes("trade=" + Offer_id);
httpWebRequest.Referer = "http://csgolounge.com/mytrades";
httpWebRequest.Headers.Add("X-Requested-With", "XMLHttpRequest");
httpWebRequest.Method = "POST";
httpWebRequest.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
httpWebRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36";
httpWebRequest.ContentLength = (long)bytes.Length;
var g = await httpWebRequest.GetRequestStreamAsync();
await g.WriteAsync(bytes, 0, bytes.Count());
g.Close();
var res = await httpWebRequest.GetResponseAsync();
res.Close();
break;
}
catch
{
}
}
}
Maybe I'm just dumb but for me it doesn't seem all that different. Are there some key differences that can be the cause?

Here is code from one of my working systems that submits a POST request through an HTTPClient.
[Route("resource")]
public async Task<dynamic> CreateResource([FromBody]Resource resource)
{
if (resource == null) return BadRequest();
dynamic response = null;
resource.Topic = GetDataFromSomewhereElse();
var message = new PostMessage(resource).BodyContent;
dynamic postRequest = new
{
Message = message
};
var post = JsonConvert.SerializeObject(postRequest);
HttpContent content = new StringContent(post, Encoding.UTF8, "application/json");
using (var client = new HttpClient())
{
client.Timeout = TimeSpan.FromMinutes(1);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/json"));
try
{
client.BaseAddress = #"http://localhost:51145/";
HttpResponseMessage postResponse = await client.PostAsync("Resource", content); //"Resource" is a route exposed on the remote host
string json = await postResponse.Content.ReadAsStringAsync();
if (postResponse.StatusCode == HttpStatusCode.BadRequest) return BadRequest();
if (postResponse.StatusCode == HttpStatusCode.InternalServerError) return InternalServerError();
if (postResponse.StatusCode == HttpStatusCode.NotFound) return NotFound();
return json;
}
catch(Exception ex)
{
return InternalServerError(ex);
}
}
}
[Edit]
The "PostMessage" was modified to remove domain-specific details. Here is how BodyContent is defined inside the real "PostMessage" from my solution, to provide you enough context to understand what that "message" actually is and how it works into the sample.
public string BodyContent
{
get
{
string content = "";
Type type = this.GetType();
Assembly assembly = Assembly.GetExecutingAssembly();
string resource = String.Format("{0}.{1}", type.Namespace, this.EmbeddedResourceName);
Stream stream = assembly.GetManifestResourceStream(resource);
StreamReader reader = new StreamReader(stream);
content = reader.ReadToEnd();
return content;
}
}
...and here is PostRequest (again, with domain-specific details trimmed)
public class PostRequest
{
public string Message { get;set; }
}