I have some method to comunity with server, But when i use www in a function in class -> it doesn't run , to check i use www like with code i use in class --> it run.. I don't know what's happening, please help me!
Create a new class that does inherit MonoBehaviour, then call that.
Example of Javascript(unity) way
// Get the latest webcam shot from outside "Friday's" in Times Square
var url = "http://images.earthcam.com/ec_metros/ourcams/fridays.jpg";
function Start () {
// Start a download of the given URL
var www : WWW = new WWW (url);
// Wait for download to complete
yield www;
// assign texture
renderer.material.mainTexture = www.texture;
}
[EDIT] Example of C# way
/// Gets the response.
///
/// <param name="StrURL">The URL.
/// HTML source
public string GetResponse(string StrURL)
{
string strReturn = "";
HttpWebRequest objRequest = null;
IAsyncResult ar = null;
HttpWebResponse objResponse = null;
StreamReader objs = null;
try
{
objRequest = (HttpWebRequest)WebRequest.Create(StrURL);
ar = objRequest.BeginGetResponse(new AsyncCallback(GetScrapingResponse), objRequest);
//// Wait for request to complete
ar.AsyncWaitHandle.WaitOne(1000 * 60, true);
if (objRequest.HaveResponse == false)
{
throw new Exception("No Response!!!");
}
objResponse = (HttpWebResponse)objRequest.EndGetResponse(ar);
objs = new StreamReader(objResponse.GetResponseStream());
strReturn = objs.ReadToEnd();
}
catch (Exception exp)
{
throw exp;
}
finally
{
if (objResponse != null)
objResponse.Close();
objRequest = null;
ar = null;
objResponse = null;
objs = null;
}
return strReturn;
}
/// Gets the scraping response.
///
/// <param name="result">The result.
protected void GetScrapingResponse(IAsyncResult result)
{
//here you will need to cast/parse the response into what ever type you require e.g. a texture, an xml file, an asset bundle, ect.
}
Call like so
GetResponse('http://images.earthcam.com/ec_metros/ourcams/fridays.jpg');
[Edit]
Basicly Javascript files in Unity automatically inherit from MonoBehavior.
If you are absolutly certain you cant/wont just create a class that inherits monobehaviour (Example #1) to do the work for you, then your asking how to do a normal XMLHttpRequest to a url.
Javascript Example here:
var xmlHttp = null;
function GetServerInfo()
{
var Url = "http://localhost";
xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = ProcessRequest;
xmlHttp.open( "GET", Url, true );
xmlHttp.send( null );
}
function ProcessRequest()
{
if ( xmlHttp.readyState == 4 && xmlHttp.status == 200 )
{
if ( xmlHttp.responseText == "Not found" )
{
}
else
{
var info = eval ( "(" + xmlHttp.responseText + ")" );
//Here is where it will get super tricky. You will need to parse these objects into unity objects.
}
}
}
The really complicated part of this is you will need to parse your http response into unity objects...
Related
I'm developing the service within ASP.NET Boilerplate engine and getting the error from the subject. The nature of the error is not clear, as I inheriting from ApplicationService, as documentation suggests. The code:
namespace MyAbilities.Api.Blob
{
public class BlobService : ApplicationService, IBlobService
{
public readonly IRepository<UserMedia, int> _blobRepository;
public BlobService(IRepository<UserMedia, int> blobRepository)
{
_blobRepository = blobRepository;
}
public async Task<List<BlobDto>> UploadBlobs(HttpContent httpContent)
{
var blobUploadProvider = new BlobStorageUploadProvider();
var list = await httpContent.ReadAsMultipartAsync(blobUploadProvider)
.ContinueWith(task =>
{
if (task.IsFaulted || task.IsCanceled)
{
if (task.Exception != null) throw task.Exception;
}
var provider = task.Result;
return provider.Uploads.ToList();
});
// store blob info in the database
foreach (var blobDto in list)
{
SaveBlobData(blobDto);
}
return list;
}
public void SaveBlobData(BlobDto blobData)
{
UserMedia um = blobData.MapTo<UserMedia>();
_blobRepository.InsertOrUpdateAndGetId(um);
CurrentUnitOfWork.SaveChanges();
}
public async Task<BlobDto> DownloadBlob(int blobId)
{
// TODO: Implement this helper method. It should retrieve blob info
// from the database, based on the blobId. The record should contain the
// blobName, which should be returned as the result of this helper method.
var blobName = GetBlobName(blobId);
if (!String.IsNullOrEmpty(blobName))
{
var container = BlobHelper.GetBlobContainer();
var blob = container.GetBlockBlobReference(blobName);
// Download the blob into a memory stream. Notice that we're not putting the memory
// stream in a using statement. This is because we need the stream to be open for the
// API controller in order for the file to actually be downloadable. The closing and
// disposing of the stream is handled by the Web API framework.
var ms = new MemoryStream();
await blob.DownloadToStreamAsync(ms);
// Strip off any folder structure so the file name is just the file name
var lastPos = blob.Name.LastIndexOf('/');
var fileName = blob.Name.Substring(lastPos + 1, blob.Name.Length - lastPos - 1);
// Build and return the download model with the blob stream and its relevant info
var download = new BlobDto
{
FileName = fileName,
FileUrl = Convert.ToString(blob.Uri),
FileSizeInBytes = blob.Properties.Length,
ContentType = blob.Properties.ContentType
};
return download;
}
// Otherwise
return null;
}
//Retrieve blob info from the database
private string GetBlobName(int blobId)
{
throw new NotImplementedException();
}
}
}
The error appears even before the app flow jumps to 'SaveBlobData' method. Am I missed something?
Hate to answer my own questions, but here it is... after a while, I found out that if UnitOfWorkManager is not available for some reason, I can instantiate it in the code, by initializing IUnitOfWorkManager in the constructor. Then, you can simply use the following construction in your Save method:
using (var unitOfWork = _unitOfWorkManager.Begin())
{
//Save logic...
unitOfWork.Complete();
}
I have a list of files to send from my device to my server.
List<myFiles> list = new List<myFiles>() { "[long list of files...]" };
For that I want to create a list of tasks: for each file I should invoke a function that sends to my webapi that file via PUT
public async Task<bool> UploadPhoto(byte[] photoBytes, int PropertyId, string fileName)
{
bool rtn = false;
if (CrossConnectivity.Current.IsConnected)
{
var content = new MultipartFormDataContent();
var fileContent = new ByteArrayContent(photoBytes);
fileContent.Headers.ContentType =
MediaTypeHeaderValue.Parse("multipart/form-data");
fileContent.Headers.ContentDisposition =
new ContentDispositionHeaderValue("attachment")
{
FileName = fileName + ".jpg"
};
content.Add(fileContent);
string url = RestURL() + "InventoriesPicture/Put";
try
{
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Add("authenticationToken", SyncData.Token);
HttpResponseMessage response = await client.PutAsync(url, content);
if (response.IsSuccessStatusCode)
{
rtn = true;
Debug.WriteLine($"UploadPhoto response {response.ReasonPhrase}");
}
else
{
Debug.WriteLine($"UploadPhoto response {response.ReasonPhrase}");
}
}
}
catch (Exception ex)
{
Debug.WriteLine($"UploadPhoto exception {ex.Message}");
}
Debug.WriteLine($"UploadPhoto ends {fileName}");
}
return rtn;
}
In a function I have a foreach that calls UploadPhoto. I think there are too many tasks at the same time then I want to send a file, wait the result from the webapi and then send next file and so on.
What can I do? What is the best practice for that? Or in any case how can I resolve my problem? :)
Thank you in advance
I want to make Twitter Sentiment Analysis Windows Phone Application.
the application works by retrieving all the related tweets based on what query terms that users entered. for example, if I enter "Windows Phone" in input search box, the results will show all the tweet that contains "windows phone" terms.
here's the code (that I get from Arik Poznanski's Blog)
/// <summary>
/// Searches the specified search text.
/// </summary>
/// <param name="searchText">The search text.</param>
/// <param name="onSearchCompleted">The on search completed.</param>
/// <param name="onError">The on error.</param>
public static void Search(string searchText, Action<IEnumerable<Twit>> onSearchCompleted = null, Action<Exception> onError = null, Action onFinally = null)
{
WebClient webClient = new WebClient();
// register on download complete event
webClient.OpenReadCompleted += delegate(object sender, OpenReadCompletedEventArgs e)
{
try
{
// report error
if (e.Error != null)
{
if (onError != null)
{
onError(e.Error);
}
return;
}
// convert json result to model
Stream stream = e.Result;
DataContractJsonSerializer dataContractJsonSerializer = new DataContractJsonSerializer(typeof(TwitterResults));
TwitterResults twitterResults = (TwitterResults)dataContractJsonSerializer.ReadObject(stream);
App thisApp = Application.Current as App;
thisApp.klasifikasi = new Klasifikasi();
foreach (Twit Tweet in twitterResults.results)
{
try
{
thisApp.klasifikasi.UploadData(Tweet); //requesting
break;
}
finally
{
// notify finally callback
if (onFinally != null)
{
onFinally();
}
}
}
//thisApp.klasifikasi.UploadDatas(twitterResults.results);
//thisApp.PositiveTweetModel = new PositiveTweetModel("Positive", twitterResults.results);
// notify completed callback
if (onSearchCompleted != null)
{
onSearchCompleted(twitterResults.results);
/// Divide the list here
}
}
finally
{
// notify finally callback
if (onFinally != null)
{
onFinally();
}
}
};
string encodedSearchText = HttpUtility.UrlEncode(searchText);
webClient.OpenReadAsync(new Uri(string.Format(TwitterSearchQuery, encodedSearchText)));
}
and to call the method
TwitterService.Search(
text,
(items) => { PositiveList.ItemsSource = items; },
(exception) => { MessageBox.Show(exception.Message); },
null
);
to upload POST Data into the API
public void UploadData(Twit tweetPerSend)
{
if (NetworkInterface.GetIsNetworkAvailable())
{
chatterbox.Headers[HttpRequestHeader.ContentType] = "application/x-www- form-urlencoded";
chatterbox.Headers["X-Mashape-Authorization"] = "MXBxYmptdjhlbzVnanJnYndicXNpN2NwdWlvMWE1OjA0YTljMWJjMDg4MzVkYWY2YmIzMzczZWFkNDlmYWRkNDYzNGU5NmI=";
var Uri = new Uri("https://chatterboxco-sentiment-analysis-for-social-media---nokia.p.mashape.com/sentiment/current/classify_text/");
StringBuilder postData = new StringBuilder();
postData.AppendFormat("{0}={1}", "lang", HttpUtility.UrlEncode("en"));
postData.AppendFormat("&{0}={1}", "text", HttpUtility.UrlEncode(tweetPerSend.DecodedText));
postData.AppendFormat("&{0}={1}", "exclude", HttpUtility.UrlEncode("is")); // disesuaikan
postData.AppendFormat("&{0}={1}", "detectlang", HttpUtility.UrlEncode("0"));
chatterbox.UploadStringAsync(Uri, "POST", postData.ToString());
chatterbox.UploadStringCompleted += new UploadStringCompletedEventHandler(chatterbox_UploadStringCompleted);
}
}
void chatterbox_UploadStringCompleted(object sender, UploadStringCompletedEventArgs e)
{
var chatterbox = sender as WebClient;
chatterbox.UploadStringCompleted -= chatterbox_UploadStringCompleted;
string response = string.Empty;
if (!e.Cancelled)
{
response = HttpUtility.UrlDecode(e.Result);
nilaiKlasifikasi = ParsingHasil(response);
MessageBox.Show(nilaiKlasifikasi.ToString()); //just testing
//textBlock1.Text = response;
}
}
private double ParsingHasil(String response)
{
var result = Regex.Match(#response, #"(?<=""value"": )(-?\d+(\.\d+)?)(?=,|$)");
Debug.WriteLine(result);
double hasil = Convert.ToDouble(result.ToString());
//return Convert.ToInt32(result);
return hasil;
}
However, there isn't only 1 tweet to retrieve, there'll be many tweets, so the main problem is, after I retrieve all the tweet and request the result to the API, I get this error "WebClient does not support concurrent I/O operations"
Does anyone know how to solve this problem?
any help would be appreciated
You'll have to execute UploadStringAsync synchronously one at a time. (i.e. chain execution of the next UploadStringAsync in the UploadStringCompleted handler.
Or, create a new WebClient for each UploadStringAsync.
I'm attempting to build a GET webservice that would from website 1 initiate a GET request...sending that request to website 2 and website two would respond by sending a list of objects. I using Json.net to serialize and deserialize the List of objects.
I've put together a POST webservice with the assistance of this question.. WebService ASP.NET MVC 3 Send and Receive
But I've been unsuccessful so far at adapting that example for my new requirement.
Here is what I have so far from website 1..
public static List<ScientificFocusArea> ScientificFocusAreas()
{
string apiURL = "http://localhost:50328/Api/GetAPI";
//Make the post
ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, errors) => true;
//var bytes = Encoding.Default.GetBytes(body);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(apiURL);
Stream stream = null;
try
{
request.KeepAlive = false;
request.ContentType = "application/x-www-form-urlencoded";
request.Timeout = -1;
request.Method = "GET";
}
finally
{
if (stream != null)
{
stream.Flush();
stream.Close();
}
}
List<ScientificFocusArea> listSFA = WebService.GetResponse_ScientificFocusArea(request);
return listSFA;
}
public static List<ScientificFocusArea> GetResponse_ScientificFocusArea(HttpWebRequest request)
{
List<ScientificFocusArea> listSFA = new List<ScientificFocusArea>();
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (Stream responseStream = response.GetResponseStream())
{
if (response.StatusCode != HttpStatusCode.OK && response.StatusCode != HttpStatusCode.Created)
{
throw new HttpException((int)response.StatusCode, response.StatusDescription);
}
var end = string.Empty;
using (StreamReader reader = new StreamReader(responseStream))
{
end = reader.ReadToEnd();
reader.Close();
listSFA = JsonConvert.DeserializeObject<List<ScientificFocusArea>>(end);
}
response.Close();
}
}
return listSFA;
}
Then on the website 2...
public class GetAPIController : Controller
{
//
// GET: /Api/GetAPI/
[AcceptVerbs(HttpVerbs.Get)]
public ActionResult GetScientificFocusAreas()
{
//Get list of SFAs
List<ScientificFocusArea> ListSFA = CreateList.ScientificFocusArea();
string json = JsonConvert.SerializeObject(ListSFA, Formatting.Indented);
//Send the the seralized object.
return Json(json);
}
}
Also, on website 2, I've registered this route for the incoming request...
context.MapRoute(
"GetScientificFocusAreas",
"Api/GetAPI/",
new
{
controller = "GetAPI",
action = "GetScientificFocusAreas",
id = UrlParameter.Optional
}
);
I'm currently getting the error.. he remote server returned an error: (404) Not Found.
Any help would me greatly appreciated.
The problem seems like a routing issue. I would start with the RouteDebugger which can be found here. This tool gives insight into which routes your URL is hitting.
The code I use for a HTTP GET is a bit different that what you have above. It's included below.
public T Get<T>(string url)
{
try
{
HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
using (Stream responseStream = response.GetResponseStream())
{
if (response.StatusCode != HttpStatusCode.OK && response.StatusCode != HttpStatusCode.Created)
{
throw new HttpException((int)response.StatusCode, response.StatusDescription);
}
var end = string.Empty;
using (StreamReader reader = new StreamReader(responseStream))
{
end = reader.ReadToEnd();
reader.Close();
}
responseStream.Close();
response.Close();
JsonSerializer serializer = new JsonSerializer();
serializer.Binder = new DefaultSerializationBinder();
JsonReader jsonReader = new JsonTextReader(new StringReader(end));
T deserialize = serializer.Deserialize<T>(jsonReader);
return deserialize;
}
}
catch (Exception ex)
{
throw new ApiException(string.Format("An error occured while trying to contact the API. URL: {0}", url), ex);
}
}
The other issue I see is in the GetScientificFocusAreas() method. On the second line of the code the objects are converted to JSON. Which is fine, but the last line of code the json is passed into the Json() method. Which converts the string into Json yet again. When using the JSON.Net library use the Content() method in the return instead of Json() and set the content type to application/json
The reasoning for using an external Json converter rather than the internal converter is simply the internal json converter has a few known issues. JSON.Net has been around for years and is solid.
I'm trying to make an app for windows phone 7 mango, to parse the content of a website. I managed to write all the code, but it was like a war zone ;). When i tried to rearrange the code in a better way, i start facing a very strange problem.
The problem is when i made a custom class called "MedinetMySchedule" inside my project and use breakpoint to step through this class. I found out that the app steps throught the first method getrequest() then return back to the mainpage for few steps, then returns back to the second methods GetRequestStreamCallback(). This jump to the mainpage leaves me with a string having a value of null to parse. Then it jump back to the third method ReadWebRequestCallback(). This last jump gives me nothing important as the debugg ends and i get nothing on the phone-emulator. The MedinetMySchedule class has the following code:-
namespace WindowsPhonePanoramaApplication1
{
public class MedinetMySchedule
{
//Medinet user url
public string url { get; set; }
public String myresponse;
public void getrequest()
{
HttpWebRequest request = HttpWebRequest.CreateHttp(url);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.BeginGetRequestStream(GetRequestStreamCallback, request);
}
private void GetRequestStreamCallback(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
using (Stream postStream = request.EndGetRequestStream(asynchronousResult))
{
string postData = string.Format("username={0}&password={1}&customer=******&doLogin=Logga+in&language=se", "*****", "******");
// Convert the string into a byte array.
byte[] data = Encoding.UTF8.GetBytes(postData);
// Write to the request stream.
postStream.Write(data, 0, data.Length);
postStream.Close();
}
//Initiating get response
request.BeginGetResponse(ReadWebRequestCallBack, request);
}
private void ReadWebRequestCallBack(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
WebResponse myResponse = (WebResponse)request.EndGetResponse(asynchronousResult);
Stream encodingStream = myResponse.GetResponseStream();
Encoding encode = Encoding.GetEncoding("iso-8859-1");
using (StreamReader httpwebStreamReader = new StreamReader(encodingStream, encode))
{
myresponse= httpwebStreamReader.ReadToEnd();
}
myResponse.Close();
}
}
}
Here is the code that calls the getrequest() and parses the content:-
MedinetMySchedule mittschema = new MedinetMySchedule();
mittschema.url = "https://medinet.se/cgi-bin/doctor.pl?action=login&customer=saskir&language=se";
mittschema.getrequest();
Dispatcher.BeginInvoke(() => parseResults(mittschema.myresponse));
private void parseResults(string myresponse)
{
if (string.IsNullOrEmpty(myresponse))
{
return;
}
//Initiating a listbox and add item to it
List<MediNetScheme> medinetScheme = new List<MediNetScheme>();
//Using HtmlAgilityPack to parse the HTMLcode from the response
HtmlDocument htdoc = new HtmlDocument();
htdoc.LoadHtml(myresponse);
foreach (HtmlNode table in htdoc.DocumentNode.SelectNodes("//table[#class='list-medium']/tbody[1]/tr[#class]"))
{
//Removing ChildNode
table.ChildNodes.RemoveAt(3);
string itemValue = table.InnerText;
//Changing the parsed date into a DateTime
string d;
DateTime datum = DateTime.Parse(itemValue.Remove(11));
d = datum.ToString("D");
//Adding items to the listbox
medinetScheme.Add(new MediNetScheme() { Datum = d, Sections = itemValue.Remove(0, 15) });
}
MediNetScheme.ItemsSource = medinetScheme;
}
Any ideas why this is happening and how to correct it?
Yours
/Omar
The execution going back and forth is because request.BeginGetRequestStream is asynchronous. Basically, it creates a new thread, and executes in parallel of your main code. Therefore, you end up calling parseResult before you've finished downloading the data. There's many ways to rewrite your code, my favorite is using a callback:
First, change the getRequest method to accept a callback, and store it:
private Action Callback;
public void getrequest(Action callback)
{
this.Callback = callback;
HttpWebRequest request = HttpWebRequest.CreateHttp(url);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.BeginGetRequestStream(GetRequestStreamCallback, request);
}
Then, at the end of ReadWebRequestCallback, invoke this callback:
private void ReadWebRequestCallBack(IAsyncResult asynchronousResult)
{
HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
WebResponse myResponse = (WebResponse)request.EndGetResponse(asynchronousResult);
Stream encodingStream = myResponse.GetResponseStream();
Encoding encode = Encoding.GetEncoding("iso-8859-1");
using (StreamReader httpwebStreamReader = new StreamReader(encodingStream, encode))
{
myresponse= httpwebStreamReader.ReadToEnd();
}
myResponse.Close();
this.Callback();
}
Finally, from mainpage, call the getrequest method and tell it to use parseResults as callback:
Action callback = () => Dispatcher.BeginInvoke(() => parseResults(mittschema.myresponse));
mittschema.getrequest(callback);