I'm developing a C#.NET MVC Web Api for an Android application. At the moment I am using OneSignal to send push notifications to the users by calling the OneSignal Api and passing the notification content. I need to know how to add a user to a specific segment so that i can send notifications to individual users as well as users of that segment collectively. I have searched in on their documentation but I didn't understand how to do it using OneSignal.SendTag method. So basically how to do it in Visual Studio? So far i have done this:
string api_key = "dsabjd";
var request = WebRequest.Create("https://onesignal.com/api/v1/notifications") as HttpWebRequest;
if (user != null)
{
string message = "This job is posted by: \n" + user.Name + "\n" + user.Contact + "\n" +user.City;
if (request != null)
{
request.KeepAlive = true;
request.Method = "POST";
request.ContentType = "application/json";
request.Headers.Add("authorization", "Basic "+api_key);
var serializer = new JavaScriptSerializer();
var obj = new
{
app_id = "1651",
contents = new { en = message },
//data = new { image = "http://dsadasdasd.png" },
data = new { image = imageUrl },
included_segments = new string[] { "All" }
};
var param = serializer.Serialize(obj);
byte[] byteArray = Encoding.UTF8.GetBytes(param);
try
{
using (var writer = request.GetRequestStream())
{
writer.Write(byteArray, 0, byteArray.Length);
}
string responseContent=null;
using (var response = request.GetResponse() as HttpWebResponse)
{
using (var reader = new StreamReader(response.GetResponseStream()))
{
responseContent = reader.ReadToEnd();
}
}
if (responseContent != null)
{
// parsing the json returned by OneSignal Push API
dynamic json = JObject.Parse(responseContent);
int noOfRecipients = json.recipients;
if (noOfRecipients > 0)
{
flag = true;
}
}
}
catch (WebException ex)
{
flag = false;
}
}
}
To set tags it is recommend you use sendTags from the OneSignal Android SDK in your app it's supported offline and handles retries for you.
If you need to target individual users it is recommend to call idsAvailable in your app and send this to your server. You can later use the include_player_ids field on the create notification REST API POST call to send a notification to a list of users.
Related
I'm trying to create a .NET web application integration with RTC, where I would insert new workitems using RTC change management services, as defined in this article (specifically in "Create a Change Request"). I was able to get the URL-to-be-used inside services.xml file (/oslc/contexts/_0_iN4G09EeGGMqpyZT5XdQ/workitems/) and my goal is to insert data using JSON.
My code is basically the following:
CookieContainer cookies = new CookieContainer();
HttpWebRequest documentPost = (HttpWebRequest)WebRequest.Create(rtcServerUrl + "/oslc/contexts/_0_iN4G09EeGGMqpyZT5XdQ/workitems/order");//"Order" is the workitem name
documentPost.Method = "POST";
documentPost.CookieContainer = cookies;
documentPost.Accept = "application/json";
documentPost.ContentType = "application/x-oslc-cm-change-request+json";
documentPost.Timeout = TIMEOUT_SERVICO;
string json = "{ \"dc:title\":\"" + title + "\", \"rtc_cm:filedAgainst\": [ { \"rdf:resource\" : \"" + rtcServerUrl + "/resource/itemOid/com.ibm.team.workitem.Category/" + idCategory + "\"} ] }"; //dc:title and rtc_cm:filedAgainst are the only two mandatory data from the workitem I'm trying to create
using (var writer = new StreamWriter(documentPost.GetRequestStream()))
{
writer.Write(json);
writer.Flush();
writer.Close();
}
Encoding encode = System.Text.Encoding.UTF8;
string retorno = null;
//Login
HttpWebRequest formPost = (HttpWebRequest)WebRequest.Create(rtcServerUrl + "/j_security_check");
formPost.Method = "POST";
formPost.Timeout = TIMEOUT_REQUEST;
formPost.CookieContainer = request.CookieContainer;
formPost.Accept = "text/xml";
formPost.ContentType = "application/x-www-form-urlencoded";
String authString = "j_username=" + userName + "&j_password=" + password; //create authentication string
Byte[] outBuffer = System.Text.Encoding.UTF8.GetBytes(authString); //store in byte buffer
formPost.ContentLength = outBuffer.Length;
System.IO.Stream str = formPost.GetRequestStream();
str.Write(outBuffer, 0, outBuffer.Length); //update form
str.Close();
//FormBasedAuth Step2:submit the login form and get the response from the server
HttpWebResponse formResponse = (HttpWebResponse)formPost.GetResponse();
var rtcAuthHeader = formResponse.Headers["X-com-ibm-team-repository-web- auth-msg"];
//check if authentication has failed
if ((rtcAuthHeader != null) && rtcAuthHeader.Equals("authfailed"))
{
//authentication failed. You can write code to handle the authentication failure.
//if (DEBUG) Console.WriteLine("Authentication Failure");
}
else
{
//login successful
HttpWebResponse responseRetorno = (HttpWebResponse)request.GetResponse();
if (responseRetorno.StatusCode != HttpStatusCode.OK)
retorno = responseRetorno.StatusDescription;
else
{
StreamReader reader = new StreamReader(responseRetorno.GetResponseStream());
retorno = "[Response] " + reader.ReadToEnd();
}
responseRetorno.Close();
formResponse.GetResponseStream().Flush();
formResponse.Close();
}
As I was managed to search for in other forums, this should be enough in order to create the workitem (I have a very similar code working to update workitems using "" URL and PUT method). However, instead of create the workitem in RTC and give me some response with item's identifier, the request's response returns a huge JSON file that ends with "oslc_cm:next":"https:///oslc/contexts/_0_iN4G09EeGGMqpyZT5XdQ/workitems/%7B0%7D?oslc_cm.pageSize=50&_resultToken=_AAY50FEkEee1V4u7RUQSjA&_startIndex=50. It's a JSON representation of the XML I receive when I access /oslc/contexts/_0_iN4G09EeGGMqpyZT5XdQ/workitems/ directly from browser, like I was trying to do a simple query inside the workitem's collection (even though I'm using POST, not GET).
I also tried to use PUT method, but then I receive a 405 status code.
Does anyone have an idea of what am I missing here? My approach is wrong, even though with the same approach I'm able to update existing workitem data in RTC?
Thanks in advance.
My goal is to get all the retweet IDs of a specific tweet. I tried to use oAuthTwitterWrapper for C# twitter authentication and tried changing the code, but without any success. I am getting Forbidden message from twitter when I change the searchFormat to suit my requirement.
Someone please help!
oAuthTwitterWrapper Wrapper - https://github.com/andyhutch77/oAuthTwitterWrapper
Stack Exchange Link - Authenticate and request a user's timeline with Twitter API 1.1 oAuth
Thanks in advance..
Ok, I think this is how you would do this manually to begin with.
I have not tested it so there may be some typos, let me know and I will update it the answer accordingly.
This makes a call to the api specified here:
https://dev.twitter.com/docs/api/1.1/get/statuses/retweets/%3Aid
// You need to set your own keys and tweet id
var oAuthConsumerKey = "superSecretKey";
var oAuthConsumerSecret = "superSecretSecret";
var oAuthUrl = "https://api.twitter.com/oauth2/token";
var tweetId = "21947795900469248";
// Do the Authenticate
var authHeaderFormat = "Basic {0}";
var authHeader = string.Format(authHeaderFormat,
Convert.ToBase64String(Encoding.UTF8.GetBytes(Uri.EscapeDataString(oAuthConsumerKey) + ":" +
Uri.EscapeDataString((oAuthConsumerSecret)))
));
var postBody = "grant_type=client_credentials";
HttpWebRequest authRequest = (HttpWebRequest)WebRequest.Create(oAuthUrl);
authRequest.Headers.Add("Authorization", authHeader);
authRequest.Method = "POST";
authRequest.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
authRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
using (Stream stream = authRequest.GetRequestStream())
{
byte[] content = ASCIIEncoding.ASCII.GetBytes(postBody);
stream.Write(content, 0, content.Length);
}
authRequest.Headers.Add("Accept-Encoding", "gzip");
WebResponse authResponse = authRequest.GetResponse();
// deserialize into an object
TwitAuthenticateResponse twitAuthResponse;
using (authResponse)
{
using (var reader = new StreamReader(authResponse.GetResponseStream())) {
JavaScriptSerializer js = new JavaScriptSerializer();
var objectText = reader.ReadToEnd();
twitAuthResponse = JsonConvert.DeserializeObject<TwitAuthenticateResponse>(objectText);
}
}
// Get the retweets by Id
var retweetFormat = "https://api.twitter.com/1.1/statuses/retweets/{0}.json";
var retweetsUrl = string.Format(retweetFormat, tweetId);
HttpWebRequest retweetRequest = (HttpWebRequest)WebRequest.Create(retweetsUrl);
var retweetHeaderFormat = "{0} {1}";
timeLineRequest.Headers.Add("Authorization", string.Format(retweetHeaderFormat, twitAuthResponse.token_type,
twitAuthResponse.access_token));
retweetRequest.Method = "Get";
WebResponse retweetResponse = timeLineRequest.GetResponse();
var retweetJson = string.Empty;
using (retweetResponse)
{
using (var reader = new StreamReader(retweetResponse.GetResponseStream()))
{
retweetJson = reader.ReadToEnd();
}
}
//parse the json from retweetJson to read the returned id's
public class TwitAuthenticateResponse {
public string token_type { get; set; }
public string access_token { get; set; }
}
If this works and you have time please submit a pull request via GitHub and I will include it in oauthtwitterwrapper.
I am trying to upload a file using v3 of the youtube api and without using the c# library. I really can't use the library because I am making my own library that allows me to use a few common apis (youtube, vimeo, facebook, etc)
I have already got my access token and refresh token which is fine. Now I need to upload a file using the youtube resumable uploads defined here:
https://developers.google.com/youtube/v3/guides/using_resumable_upload_protocol
but for some reason my code is coming back with a 401 Unauthorized error but I can't see why.
Here is my code that is creating the request:
private void CreateUploadRequest(SynchronisedAsset asset)
{
var endPoint = api.ApiUrl + "/videos?uploadType=resumable&part=snippet&key=" + api.Tokens.ConsumerKey; // read for the different ways to interact with videos https://developers.google.com/youtube/v3/docs/#Videos
var maxSize = 68719476736; // 64 gig
try
{
var location = CompanyProvider.GetUploadLocation(this.baseUploadDirectory, companyId, FileType.Asset);
var filePath = System.IO.Path.Combine(location, asset.FileName);
using (var data = new FileStream(filePath, FileMode.Open))
{
if (maxSize > data.Length && (asset.MimeType.ToLower().StartsWith("video/") || asset.MimeType.ToLower().Equals("application/octet-stream")))
{
var json = "{ \"snippet\": { \"title\": \"" + asset.FileName + "\", \"description\": \"This is a description of my video\" } }";
var buffer = Encoding.ASCII.GetBytes(json);
var request = WebRequest.Create(endPoint);
request.Headers[HttpRequestHeader.Authorization] = string.Format("Bearer {0}", api.Tokens.AccessToken);
request.Headers["X-Upload-Content-Length"] = data.Length.ToString();
request.Headers["X-Upload-Content-Type"] = asset.MimeType;
request.ContentType = "application/json; charset=UTF-8";
request.ContentLength = buffer.Length;
request.Method = "POST";
using (var stream = request.GetRequestStream())
{
stream.Write(buffer, 0, (int)buffer.Length);
}
var response = request.GetResponse();
}
}
}
catch (Exception ex)
{
eventLog.WriteEntry("Error uploading to youtube.\nEndpoint: " + endPoint + "\n" + ex.ToString(), EventLogEntryType.Error);
}
}
api.ApiUrl is https://www.googleapis.com/youtube/v3. I am not sure if the key is needed, it doesn't show it in the documentation but I added it to see if I could solve my Unauthorized issue.
Also, I figured that without the key, how would it know what account to upload to?
Can anyone see what is wrong with my code?
Any help would be greatly appreciated.
Update 1
After a bit of time sorting stuff out, I have now added some code that checks the youtube credentials before trying to do an upload. This is done with these bits of code:
public string GetAuthorizeApplicationUrl()
{
var sb = new StringBuilder();
var dictionary = new Dictionary<string, string>
{
{"client_id", Tokens.ConsumerKey},
{"redirect_uri", callbackUrl},
{"response_type", "code"},
{"scope", "https://www.googleapis.com/auth/youtube https://www.googleapis.com/auth/youtube.upload https://www.googleapis.com/auth/youtubepartner"},
{"approval_prompt", "force"},
{"access_type", "offline"},
{"state", ""}
};
sb.Append(requestTokenUrl);
foreach (var parameter in dictionary)
{
var query = (sb.ToString().Contains("?")) ? "&" : "?";
sb.Append(query + parameter.Key + "=" + parameter.Value);
}
return sb.ToString();
}
This bit of code is responsible for building the URL that allows us to ask the user for access.
With the code that is returned to our return URL we call this bit of code:
public void RequestAccessToken(string code)
{
var dictionary = new Dictionary<string, string>
{
{"code", code},
{"client_id", Tokens.ConsumerKey},
{"client_secret", Tokens.ConsumerSecret},
{"redirect_uri", callbackUrl},
{"grant_type", "authorization_code"}
};
var parameters = NormalizeParameters(dictionary);
var resultString = "";
using (var wc = new WebClient())
{
//wc.Headers[HttpRequestHeader.Host] = "POST";
wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
resultString = wc.UploadString(requestAccessTokenUrl, parameters);
}
var json = JObject.Parse(resultString);
Tokens.AccessToken = json["access_token"].ToString();
Tokens.RefreshToken = (json["refresh_token"] != null) ? json["refresh_token"].ToString() : null;
Tokens.Save(companyId);
}
Now because we have declared our app as offline, when we do any api calls we can just use this bit of code:
public bool CheckAccessToken()
{
try
{
RefreshToken(); // Get and store our new tokens
return true;
}
catch
{
return false;
}
}
private void RefreshToken()
{
var dictionary = new Dictionary<string, string>
{
{"refresh_token", Tokens.RefreshToken},
{"client_id", Tokens.ConsumerKey},
{"client_secret", Tokens.ConsumerSecret},
{"grant_type", "refresh_token"}
};
var parameters = NormalizeParameters(dictionary);
var resultString = "";
using (var wc = new WebClient())
{
//wc.Headers[HttpRequestHeader.Host] = "POST";
wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
resultString = wc.UploadString(requestAccessTokenUrl, parameters);
}
var json = JObject.Parse(resultString);
Tokens.AccessToken = json["access_token"].ToString();
Tokens.Save(companyId);
}
In my windows service I have this code:
public void SynchroniseAssets(IEnumerable<SynchronisedAsset> assets)
{
if (api.CheckAccessToken())
{
foreach (var asset in assets)
{
var uploadAssetThread = new Thread(() => CreateUploadRequest(asset));
uploadAssetThread.Start(); // Upload our assets at the same time
}
}
}
which as you can see calls the Original code above.
The error which I am getting when I parse it into json is this:
{
"error":{
"errors":[
{
"domain":"youtube.header",
"reason":"youtubeSignupRequired",
"message":"Unauthorized",
"locationType":"header",
"location":"Authorization"
}
],
"code":401,
"message":"Unauthorized"
}
}
So, if anyone could help me work out what that means, that would be great.
Cheers,
/r3plica
The reason "youtubeSignupRequired" usually means the YouTube account has not been set up properly or you have not created your YouTube channel yet. This is a requirement before you can upload videos.
It would be great if Google could improve their error message for this case and make it a bit more verbose.
The issue returning 401 Unautorized was because the account I was gaining access to did not have a youtube account associated with it.
I've been trawling the answers in SO concerning posting a score to a Facebook app, and I still can't get it to work. The code I'm using is here -
private const string FACEBOOK_POST_SCORE_URL = "https://graph.facebook.com/me/scores?access_token={0}";
public void PostScoreAsync(Action<FacebookResponse> response, FacebookScore score)
{
try
{
// Append the user's access token to the URL
Uri fullUri = new Uri(string.Format(FACEBOOK_POST_SCORE_URL, AccessToken));
string json = JsonConvert.SerializeObject(score);
var request = (HttpWebRequest)WebRequest.Create(fullUri);
request.Method = "POST";
request.ContentType = "application/json; charset=utf-8";
using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
{
writer.Write(json);
}
request.BeginGetResponse(WebRequestCallback, new FacebookResult
{
Request = request,
Response = response
});
}
catch (ThreadAbortException)
{
throw;
}
catch (WebException ex)
{
if (response != null)
response(FacebookResponse.NetworkError);
}
catch (Exception ex)
{
if (response != null)
response(FacebookResponse.OtherError);
}
}
We're using webViews rather than iOS / Android Facebook SDKs, as we're building a cross-platform app in Mono.
Obviously I have the access token & the app appears to have full permissions to do what I want to do, which I allowed after login. Any thoughts appreciated!
I eventually found out (from a colleague) that the Facebook graph api won't take json encoded parameters, so we sorted it like so -
string parameters = "score=" + score.Score;
var request = (HttpWebRequest)WebRequest.Create(fullUri);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
{
writer.Write(parameters);
}
Now it works fine - hopefully this'll help someone else not have the same problem.
I've implemented C# code using the Google Translation V2 api with the GET Method.
It successfully translates small texts but when increasing the text length and it takes 1,800 characters long ( including URI parameters ) I'm getting the "URI too large" error.
Ok, I burned down all the paths and investigated the issue across multiple pages posted on Internet. All of them clearly says the GET method should be overriden to simulate a POST method ( which is meant to provide support to 5,000 character URIs ) but there is no way to find out a code example to of it.
Does anyone has any example or can provide some information?
[EDIT] Here is the code I'm using:
String apiUrl = "https://www.googleapis.com/language/translate/v2?key={0}&source={1}&target={2}&q={3}";
String url = String.Format(apiUrl, Constants.apiKey, sourceLanguage, targetLanguage, text);
Stream outputStream = null;
byte[] bytes = Encoding.ASCII.GetBytes(url);
// create the http web request
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
webRequest.KeepAlive = true;
webRequest.Method = "POST";
// Overrride the GET method as documented on Google's docu.
webRequest.Headers.Add("X-HTTP-Method-Override: GET");
webRequest.ContentType = "application/x-www-form-urlencoded";
// send POST
try
{
webRequest.ContentLength = bytes.Length;
outputStream = webRequest.GetRequestStream();
outputStream.Write(bytes, 0, bytes.Length);
outputStream.Close();
}
catch (HttpException e)
{
/*...*/
}
try
{
// get the response
HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
if (webResponse.StatusCode == HttpStatusCode.OK && webRequest != null)
{
// read response stream
using (StreamReader sr = new StreamReader(webResponse.GetResponseStream(), Encoding.UTF8))
{
string lista = sr.ReadToEnd();
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(TranslationRootObject));
MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(lista));
TranslationRootObject tRootObject = (TranslationRootObject)serializer.ReadObject(stream);
string previousTranslation = string.Empty;
//deserialize
for (int i = 0; i < tRootObject.Data.Detections.Count; i++)
{
string translatedText = tRootObject.Data.Detections[i].TranslatedText.ToString();
if (i == 0)
{
text = translatedText;
}
else
{
if (!text.Contains(translatedText))
{
text = text + " " + translatedText;
}
}
}
return text;
}
}
}
catch (HttpException e)
{
/*...*/
}
return text;
}
Apparently using WebClient won't work as you cannot alter the headers as needed, per the documentation:
Note: You can also use POST to invoke the API if you want to send more data in a single request. The q parameter in the POST body must be less than 5K characters. To use POST, you must use the X-HTTP-Method-Override header to tell the Translate API to treat the request as a GET (use X-HTTP-Method-Override: GET).
You can use WebRequest, but you'll need to add the X-HTTP-Method-Override header:
var request = WebRequest.Create (uri);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("X-HTTP-Method-Override", "GET");
var body = new StringBuilder();
body.Append("key=SECRET");
body.AppendFormat("&source={0}", HttpUtility.UrlEncode(source));
body.AppendFormat("&target={0}", HttpUtility.UrlEncode(target));
//--
body.AppendFormat("&q={0}", HttpUtility.UrlEncode(text));
var bytes = Encoding.ASCII.GetBytes(body.ToString());
if (bytes.Length > 5120) throw new ArgumentOutOfRangeException("text");
request.ContentLength = bytes.Length;
using (var output = request.GetRequestStream())
{
output.Write(bytes, 0, bytes.Length);
}
The accepted answer appears to be out of date. You can now use the WebClient (.net 4.5) successfully to POST to the google translate API making sure to set the X-HTTP-Method-Override header.
Here is some code to show you how.
using (var webClient = new WebClient())
{
webClient.Headers.Add("X-HTTP-Method-Override", "GET");
var data = new NameValueCollection()
{
{ "key", GoogleTranslateApiKey },
{ "source", "en" },
{ "target", "fr"},
{ "q", "<p>Hello World</p>" }
};
try
{
var responseBytes = webClient.UploadValues(GoogleTranslateApiUrl, "POST", data);
var json = Encoding.UTF8.GetString(responseBytes);
var result = JsonConvert.DeserializeObject<dynamic>(json);
var translation = result.data.translations[0].translatedText;
}
catch (Exception ex)
{
loggingService.Error(ex.Message);
}
}
? What? it is trivial to post using C# - it is right there in the documentation.
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
{
// Set type to POST
request.Method = "POST";
From there on you bascially put the data into fom fields into the content stream.
This is not "simulate a post meethod", it is fully doing a post request as per specifications.
Btw. hwhere does json enter here? You say "in C#". There is no need to use json?