i am trying to create a messaging app using xamarin.forms. i created a send button and added the following code:
private async void send_Clicked(object sender, EventArgs e)
{
await Task.Run(() => SendNotification(token, "title", message.Text));
}
and the sendnotification is as follows:
public string SendNotification(string DeviceToken, string title, string msg)
{
var result = "-1";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Headers.Add(string.Format("Authorization: key={0}", serverKey));
httpWebRequest.Headers.Add(string.Format("Sender: id={0}", senderId));
httpWebRequest.Method = "POST";
var payload = new
{
//to= "/topics/klm",
to = DeviceToken,
//to = "egjLx6VdFS0:APA91bGQMSSRq_wCzywNC01zJi4FBtHXrXuL-p4vlkl3a3esdH8lxo7mQZUBlrTi7h-6JXx0GrJbwc9Vx6M5Q4OV_3CArcdlP0XMBybervQvfraWvqCgaa75gu9SVzjY4V_qd36JGg4A",
priority = "high",
content_available = true,
data = new
{
text = msg,
},
};
var serializer = new JsonSerializer();
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string json = JsonConvert.SerializeObject(payload);
streamWriter.Write(json);
streamWriter.Flush();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
return result;
}
this is private string webAddr = "https://fcm.googleapis.com/fcm/send";
when i click send the first time, i receive the message perfectly, when i hit send the second time, the app freezes then crashes and asks me if i want to close the app or wait. why is this happening? thanks in advance
I'm trying to log API request payload and response data to Azure Application Insight. Using trace I can able to log. but I want to know what is the best way to log request and response data to application insight. Because data is huge, no.of API calls will be more. I can't just trace hundreds of thousands of request and response data using tracing. I tried some of the blogs like using ITelemetryInitializer/ httpcontext.feature,get, but no luck.
I want to log from c# .Net framework, Web API, not .NET Core.
Sample code which I tried.
public class AzureRequestResponseInitializer : ITelemetryInitializer
{
public void Initialize(ITelemetry telemetry)
{
var requestTelemetry = telemetry as RequestTelemetry;
if (requestTelemetry != null && (HttpContext.Current.Request.HttpMethod == HttpMethod.Post.ToString() || HttpContext.Current.Request.HttpMethod == HttpMethod.Get.ToString()))
{
using (var reader = new StreamReader(HttpContext.Current.Request.InputStream))
{
string requestBody = reader.ReadToEnd();
requestTelemetry.Properties.Add("body", requestBody);
}
}
You can achieve it by implementing IHttpModule that using Application Insight's TelemtryClient, see the following code:
using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.DataContracts;
using Contoso.Services.Logging.Extensions;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
namespace Contoso.Services.Logging.Modules
{
public class CaptureTrafficModule : IHttpModule
{
public TelemetryClient Telemetry { get; set; }
public void Init(HttpApplication context)
{
context.BeginRequest += new EventHandler(context_BeginRequest);
context.EndRequest += new EventHandler(context_EndRequest);
Telemetry = new TelemetryClient();
}
void context_BeginRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
HttpResponse response = HttpContext.Current.Response;
OutputFilterStream filter = new OutputFilterStream(response.Filter);
response.Filter = filter;
app.Context.Items["Filter"] = filter;
StringBuilder request = new StringBuilder();
// Write All The Headers too :
//foreach (string key in app.Request.Headers.Keys)
//{
// request.Append(key);
// request.Append(": ");
// request.Append(app.Request.Headers[key]);
// request.Append("\n");
//}
//request.Append("\n");
byte[] bytes = app.Request.BinaryRead(app.Request.ContentLength);
if (bytes.Count() > 0)
request.Append(Encoding.ASCII.GetString(bytes));
app.Request.InputStream.Position = 0;
string operationName = $"{app.Request.HttpMethod} {app.Request.FilePath}";
string activityId = System.Diagnostics.Activity.Current.RootId;
app.Context.Items["OperationName"] = operationName;
app.Context.Items["ActivityId"] = activityId;
using (var logRequest = Telemetry.StartOperation<RequestTelemetry>(operationName, System.Diagnostics.Activity.Current.RootId, System.Diagnostics.Activity.Current.RootId))
{
try
{
//logRequest.Telemetry.Id = $"10-{activityId}";
logRequest.Telemetry.Url = app.Request.Url;
logRequest.Telemetry.Properties["RequestBody"] = request.ToString();
}
catch (Exception ex)
{
logRequest.Telemetry.Success = false;
Telemetry.TrackException(ex);
//throw;
}
}
}
void context_EndRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
OutputFilterStream filter = null;
string operationName = "", activityId = Guid.Empty.ToString(), responseStr = "NONE";
if (app.Context.Items.Contains("OperationName"))
operationName = app.Context.Items["OperationName"].ToString();
if (app.Context.Items.Contains("ActivityId"))
activityId = app.Context.Items["ActivityId"].ToString();
if (app.Context.Items.Contains("Filter"))
{
filter = (OutputFilterStream)app.Context.Items["Filter"];
responseStr = filter.ReadStream();
}
using (var logResponse = Telemetry.StartOperation<RequestTelemetry>(operationName, activityId, activityId))
{
try
{
//logResponse.Telemetry.Id = $"20-{activityId}";
logResponse.Telemetry.Url = app.Request.Url;
logResponse.Telemetry.Properties["ResponseBody"] = responseStr.ToString();
}
catch (Exception ex)
{
logResponse.Telemetry.Success = false;
Telemetry.TrackException(ex);
//throw;
}
}
}
public void Dispose()
{
//Does nothing
}
}
}
This question is answered in https://thirum.wordpress.com/2019/08/19/logging-the-http-response-body-in-application-insights/
Please take a look.
I am using this code to send notification message by C# with GCM, using Winforms, Webforms, whatever. Now I want to send to FCM (Firebase Cloud Messaging). Should I update my code? :
public class AndroidGCMPushNotification
{
public AndroidGCMPushNotification()
{
//
// TODO: Add constructor logic here
//
}
public string SendNotification(string deviceId, string message)
{
string SERVER_API_KEY = "server api key";
var SENDER_ID = "application number";
var value = message;
WebRequest tRequest;
tRequest = WebRequest.Create("https://android.googleapis.com/gcm/send");
tRequest.Method = "post";
tRequest.ContentType = " application/x-www-form-urlencoded;charset=UTF-8";
tRequest.Headers.Add(string.Format("Authorization: key={0}", SERVER_API_KEY));
tRequest.Headers.Add(string.Format("Sender: id={0}", SENDER_ID));
string postData = "collapse_key=score_update&time_to_live=108&delay_while_idle=1&data.message=" + value + "&data.time=" + System.DateTime.Now.ToString() + "®istration_id=" + deviceId + "";
Console.WriteLine(postData);
Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
tRequest.ContentLength = byteArray.Length;
Stream dataStream = tRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
WebResponse tResponse = tRequest.GetResponse();
dataStream = tResponse.GetResponseStream();
StreamReader tReader = new StreamReader(dataStream);
String sResponseFromServer = tReader.ReadToEnd();
tReader.Close();
dataStream.Close();
tResponse.Close();
return sResponseFromServer;
}
}
but the GCM was changed to FCM. Is this same code to send the notification?
Where can I find the SERVER_API_KEY? Is the same solution?
firebase cloud messaging with c#:
working all .net platform (asp.net, .netmvc, .netcore)
WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
tRequest.Method = "post";
//serverKey - Key from Firebase cloud messaging server
tRequest.Headers.Add(string.Format("Authorization: key={0}", "AIXXXXXX...."));
//Sender Id - From firebase project setting
tRequest.Headers.Add(string.Format("Sender: id={0}", "XXXXX.."));
tRequest.ContentType = "application/json";
var payload = new
{
to = "e8EHtMwqsZY:APA91bFUktufXdsDLdXXXXXX..........XXXXXXXXXXXXXX",
priority = "high",
content_available = true,
notification = new
{
body = "Test",
title = "Test",
badge = 1
},
data = new
{
key1 = "value1",
key2 = "value2"
}
};
string postbody = JsonConvert.SerializeObject(payload).ToString();
Byte[] byteArray = Encoding.UTF8.GetBytes(postbody);
tRequest.ContentLength = byteArray.Length;
using (Stream dataStream = tRequest.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
using (WebResponse tResponse = tRequest.GetResponse())
{
using (Stream dataStreamResponse = tResponse.GetResponseStream())
{
if (dataStreamResponse != null) using (StreamReader tReader = new StreamReader(dataStreamResponse))
{
String sResponseFromServer = tReader.ReadToEnd();
//result.Response = sResponseFromServer;
}
}
}
}
Here is another approach of writing Notification Service inside ASP.Net REST API.
public async Task<bool> NotifyAsync(string to, string title, string body)
{
try
{
// Get the server key from FCM console
var serverKey = string.Format("key={0}", "Your server key - use app config");
// Get the sender id from FCM console
var senderId = string.Format("id={0}", "Your sender id - use app config");
var data = new
{
to, // Recipient device token
notification = new { title, body }
};
// Using Newtonsoft.Json
var jsonBody = JsonConvert.SerializeObject(data);
using (var httpRequest = new HttpRequestMessage(HttpMethod.Post, "https://fcm.googleapis.com/fcm/send"))
{
httpRequest.Headers.TryAddWithoutValidation("Authorization", serverKey);
httpRequest.Headers.TryAddWithoutValidation("Sender", senderId);
httpRequest.Content = new StringContent(jsonBody, Encoding.UTF8, "application/json");
using (var httpClient = new HttpClient())
{
var result = await httpClient.SendAsync(httpRequest);
if (result.IsSuccessStatusCode)
{
return true;
}
else
{
// Use result.StatusCode to handle failure
// Your custom error handler here
_logger.LogError($"Error sending notification. Status Code: {result.StatusCode}");
}
}
}
}
catch (Exception ex)
{
_logger.LogError($"Exception thrown in Notify Service: {ex}");
}
return false;
}
References:
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
I have posted this answer as this question was viewed most and this server side code was written in VS 2015 in C# for sending push notification either single device based on device id or subscribed topic to Xamarin Android app
public class FCMPushNotification
{
public FCMPushNotification()
{
// TODO: Add constructor logic here
}
public bool Successful
{
get;
set;
}
public string Response
{
get;
set;
}
public Exception Error
{
get;
set;
}
public FCMPushNotification SendNotification(string _title, string _message, string _topic)
{
FCMPushNotification result = new FCMPushNotification();
try
{
result.Successful = true;
result.Error = null;
// var value = message;
var requestUri = "https://fcm.googleapis.com/fcm/send";
WebRequest webRequest = WebRequest.Create(requestUri);
webRequest.Method = "POST";
webRequest.Headers.Add(string.Format("Authorization: key={0}", YOUR_FCM_SERVER_API_KEY));
webRequest.Headers.Add(string.Format("Sender: id={0}", YOUR_FCM_SENDER_ID));
webRequest.ContentType = "application/json";
var data = new
{
// to = YOUR_FCM_DEVICE_ID, // Uncoment this if you want to test for single device
to="/topics/"+_topic, // this is for topic
notification=new
{
title=_title,
body=_message,
//icon="myicon"
}
};
var serializer = new JavaScriptSerializer();
var json = serializer.Serialize(data);
Byte[] byteArray = Encoding.UTF8.GetBytes(json);
webRequest.ContentLength = byteArray.Length;
using (Stream dataStream = webRequest.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
using (WebResponse webResponse = webRequest.GetResponse())
{
using (Stream dataStreamResponse = webResponse.GetResponseStream())
{
using (StreamReader tReader = new StreamReader(dataStreamResponse))
{
String sResponseFromServer = tReader.ReadToEnd();
result.Response = sResponseFromServer;
}
}
}
}
}
catch(Exception ex)
{
result.Successful = false;
result.Response = null;
result.Error = ex;
}
return result;
}
}
and its uses
// start sending push notification to apps
FCMPushNotification fcmPush = new FCMPushNotification();
fcmPush.SendNotification("your notificatin title", "Your body message","news");
// end push notification
Yes, you should update your code to use Firebase Messaging interface.
There's a GitHub Project for that here.
using Stimulsoft.Base.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
namespace _WEBAPP
{
public class FireBasePush
{
private string FireBase_URL = "https://fcm.googleapis.com/fcm/send";
private string key_server;
public FireBasePush(String Key_Server)
{
this.key_server = Key_Server;
}
public dynamic SendPush(PushMessage message)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(FireBase_URL);
request.Method = "POST";
request.Headers.Add("Authorization", "key=" + this.key_server);
request.ContentType = "application/json";
string json = JsonConvert.SerializeObject(message);
//json = json.Replace("content_available", "content-available");
byte[] byteArray = Encoding.UTF8.GetBytes(json);
request.ContentLength = byteArray.Length;
Stream dataStream = request.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();
HttpWebResponse respuesta = (HttpWebResponse)request.GetResponse();
if (respuesta.StatusCode == HttpStatusCode.Accepted || respuesta.StatusCode == HttpStatusCode.OK || respuesta.StatusCode == HttpStatusCode.Created)
{
StreamReader read = new StreamReader(respuesta.GetResponseStream());
String result = read.ReadToEnd();
read.Close();
respuesta.Close();
dynamic stuff = JsonConvert.DeserializeObject(result);
return stuff;
}
else
{
throw new Exception("Ocurrio un error al obtener la respuesta del servidor: " + respuesta.StatusCode);
}
}
}
public class PushMessage
{
private string _to;
private PushMessageData _notification;
private dynamic _data;
private dynamic _click_action;
public dynamic data
{
get { return _data; }
set { _data = value; }
}
public string to
{
get { return _to; }
set { _to = value; }
}
public PushMessageData notification
{
get { return _notification; }
set { _notification = value; }
}
public dynamic click_action
{
get
{
return _click_action;
}
set
{
_click_action = value;
}
}
}
public class PushMessageData
{
private string _title;
private string _text;
private string _sound = "default";
//private dynamic _content_available;
private string _click_action;
public string sound
{
get { return _sound; }
set { _sound = value; }
}
public string title
{
get { return _title; }
set { _title = value; }
}
public string text
{
get { return _text; }
set { _text = value; }
}
public string click_action
{
get
{
return _click_action;
}
set
{
_click_action = value;
}
}
}
}
Based on Teste's code .. I can confirm the following works. I can't say whether or not this is "good" code, but it certainly works and could get you back up and running quickly if you ended up with GCM to FCM server problems!
public AndroidFCMPushNotificationStatus SendNotification(string serverApiKey, string senderId, string deviceId, string message)
{
AndroidFCMPushNotificationStatus result = new AndroidFCMPushNotificationStatus();
try
{
result.Successful = false;
result.Error = null;
var value = message;
WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
tRequest.Method = "post";
tRequest.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";
tRequest.Headers.Add(string.Format("Authorization: key={0}", serverApiKey));
tRequest.Headers.Add(string.Format("Sender: id={0}", senderId));
string postData = "collapse_key=score_update&time_to_live=108&delay_while_idle=1&data.message=" + value + "&data.time=" + System.DateTime.Now.ToString() + "®istration_id=" + deviceId + "";
Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
tRequest.ContentLength = byteArray.Length;
using (Stream dataStream = tRequest.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
using (WebResponse tResponse = tRequest.GetResponse())
{
using (Stream dataStreamResponse = tResponse.GetResponseStream())
{
using (StreamReader tReader = new StreamReader(dataStreamResponse))
{
String sResponseFromServer = tReader.ReadToEnd();
result.Response = sResponseFromServer;
}
}
}
}
}
catch (Exception ex)
{
result.Successful = false;
result.Response = null;
result.Error = ex;
}
return result;
}
public class AndroidFCMPushNotificationStatus
{
public bool Successful
{
get;
set;
}
public string Response
{
get;
set;
}
public Exception Error
{
get;
set;
}
}
You need change url from https://android.googleapis.com/gcm/send to https://fcm.googleapis.com/fcm/send and change your app library too. this tutorial can help you https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol
Try to send a json object.
Replace this:
tRequest.ContentType = " application/x-www-form-urlencoded;charset=UTF-8";
string postData = "collapse_key=score_update&time_to_live=108&delay_while_idle=1&data.message=" + value + "&data.time=" + System.DateTime.Now.ToString() + "®istration_id=" + deviceId + "";
Console.WriteLine(postData);
Byte[] byteArray = Encoding.UTF8.GetBytes(postData);
For this:
tRequest.ContentType = "application/json";
var data = new
{
to = deviceId,
notification = new
{
body = "This is the message",
title = "This is the title",
icon = "myicon"
}
};
var serializer = new JavaScriptSerializer();
var json = serializer.Serialize(data);
Byte[] byteArray = Encoding.UTF8.GetBytes(json);
Here's the code for server side firebase cloud request from C# / Asp.net.
Please note that your client side should have same topic.
e.g.
FirebaseMessaging.getInstance().subscribeToTopic("news");
public String SendNotificationFromFirebaseCloud()
{
var result = "-1";
var webAddr = "https://fcm.googleapis.com/fcm/send";
var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Headers.Add("Authorization:key=" + YOUR_FIREBASE_SERVER_KEY);
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string json = "{\"to\": \"/topics/news\",\"data\": {\"message\": \"This is a Firebase Cloud Messaging Topic Message!\",}}";
streamWriter.Write(json);
streamWriter.Flush();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
return result;
}
You can use this library, makes it seamless to send push notifications using Firebase Service from a C# backend download here
public SendNotice(int deviceType, string deviceToken, string message, int badge, int status, string sound)
{
AndroidFCMPushNotificationStatus result = new AndroidFCMPushNotificationStatus();
try
{
result.Successful = false;
result.Error = null;
var value = message;
WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
tRequest.Method = "post";
tRequest.ContentType = "application/json";
var serializer = new JavaScriptSerializer();
var json = "";
tRequest.Headers.Add(string.Format("Authorization: key={0}", "AA******"));
tRequest.Headers.Add(string.Format("Sender: id={0}", "11********"));
if (DeviceType == 2)
{
var body = new
{
to = deviceToken,
data = new
{
custom_notification = new
{
title = "Notification",
body = message,
sound = "default",
priority = "high",
show_in_foreground = true,
targetScreen = notificationType,//"detail",
},
},
priority = 10
};
json = serializer.Serialize(body);
}
else
{
var body = new
{
to = deviceToken,
content_available = true,
notification = new
{
title = "Notification",
body = message,
sound = "default",
show_in_foreground = true,
},
data = new
{
targetScreen = notificationType,
id = 0,
},
priority = 10
};
json = serializer.Serialize(body);
}
Byte[] byteArray = Encoding.UTF8.GetBytes(json);
tRequest.ContentLength = byteArray.Length;
using (Stream dataStream = tRequest.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
using (WebResponse tResponse = tRequest.GetResponse())
{
using (Stream dataStreamResponse = tResponse.GetResponseStream())
{
using (StreamReader tReader = new StreamReader(dataStreamResponse))
{
String sResponseFromServer = tReader.ReadToEnd();
result.Response = sResponseFromServer;
}
}
}
}
}
catch (Exception ex)
{
result.Successful = false;
result.Response = null;
result.Error = ex;
}
}
I write this code and It's worked for me .
public static string ExcutePushNotification(string title, string msg, string fcmToken, object data)
{
var serverKey = "AAAA*******************";
var senderId = "3333333333333";
var result = "-1";
var httpWebRequest = (HttpWebRequest)WebRequest.Create("https://fcm.googleapis.com/fcm/send");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Headers.Add(string.Format("Authorization: key={0}", serverKey));
httpWebRequest.Headers.Add(string.Format("Sender: id={0}", senderId));
httpWebRequest.Method = "POST";
var payload = new
{
notification = new
{
title = title,
body = msg,
sound = "default"
},
data = new
{
info = data
},
to = fcmToken,
priority = "high",
content_available = true,
};
var serializer = new JavaScriptSerializer();
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string json = serializer.Serialize(payload);
streamWriter.Write(json);
streamWriter.Flush();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
return result;
}
I am using this approach and it is working fine:
public class PushNotification
{
private static readonly ILog Logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// firebase
private static Uri FireBasePushNotificationsURL = new Uri("https://fcm.googleapis.com/fcm/send");
private static string ServerKey = ConfigurationManager.AppSettings["FIREBASESERVERKEY"];
public static async Task<bool> SendPushNotification(List<SendNotificationModel> notificationData)
{
try
{
bool sent = false;
foreach (var data in notificationData)
{
var messageInformation = new Message()
{
notification = new Notification()
{
title = data.Title,
text = data.Message,
ClickAction = "FCM_PLUGIN_ACTIVITY"
},
data = data.data,
priority="high",
to =data.DeviceId
};
string jsonMessage = JsonConvert.SerializeObject(messageInformation);
//Create request to Firebase API
var request = new HttpRequestMessage(HttpMethod.Post, FireBasePushNotificationsURL);
request.Headers.TryAddWithoutValidation("Authorization", "key=" + ServerKey);
request.Content = new StringContent(jsonMessage, Encoding.UTF8, "application/json");
HttpResponseMessage result;
using (var client = new HttpClient())
{
result = await client.SendAsync(request);
sent = result.IsSuccessStatusCode;
}
}
return sent;
}
catch(Exception ex)
{
Logger.Error(ex);
return false;
}
}
}
Following Approach, I have used for writing Firebase Notification Service inside ASP.Net REST API.
public async Task<bool> NotifyAsync(string to, string title, string body)
{
try
{
//Server key from FCM console
var serverKey = string.Format("key={0}", "Provide your Server key here from Fibase console");
//Sender id from FCM console
var senderId = string.Format("id={0}", "Provide your Sender Id here from Firebase Console");
var data = new
{
to, // Recipient device token
notification = new { title, body }
};
// Using Newtonsoft.Json
var jsonBody = JsonConvert.SerializeObject(data);
using (var httpRequest = new HttpRequestMessage(HttpMethod.Post, "https://fcm.googleapis.com/fcm/send"))
{
httpRequest.Headers.TryAddWithoutValidation("Authorization", serverKey);
httpRequest.Headers.TryAddWithoutValidation("Sender", senderId);
httpRequest.Content = new StringContent(jsonBody, Encoding.UTF8, "application/json");
using (var httpClient = new HttpClient())
{
var result = await httpClient.SendAsync(httpRequest);
if (result.IsSuccessStatusCode)
{
return true;
}
else
{
// Use result.StatusCode to handle failure
// Your custom error handler here
return false;
}
}
}
}
catch (Exception ex)
{
throw ex;
}
return false;
}
Refer This blog for send Group Notification
https://firebase.google.com/docs/cloud-messaging/android/send-multiple
I am trying to run the following HTTP POST API Call using ASP.NET on Visual studio 2013. I created a new web application project as mentioned here
using System;
using System.IO;
using System.Net;
using System.Security.Cryptography;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
CreateNewAPICall("test api abc");
}
private object CreateNewAPICall(string apiDesc)
{
object result = null;
var accessKey = "myaccesskey";
var secretKey = "mysecretkey";
var uRLapiList = "http://myurl.com";
byte[] bytes = Encoding.UTF8.GetBytes("apiListDesc=" + apiDesc);
var method = "POST";
var timeString = DateTime.UtcNow.GetDateTimeFormats()[104];
var signature = GetSignature(secretKey, method, timeString);
var authorization = accessKey + ":" + signature;
HttpWebRequest request = CreateWebRequest(uRLapiList, "POST", bytes.Length, timeString, authorization);
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(bytes, 0, bytes.Length);
}
using (var response = (HttpWebResponse)request.GetResponse())
{
if (response.StatusCode == HttpStatusCode.OK)
{
var responseReader = new StreamReader(request.GetResponse().GetResponseStream());
// Return List api Data
result = responseReader.ReadToEnd();
}
}
return result;
}
private HttpWebRequest CreateWebRequest(string endPoint, string method, Int32 contentLength, string timeString, string authorization)
{
// Some code here
}
private string GetSignature(string secretKey, string method, string timeString)
{
// Some code here
}
private byte[] HMAC_SHA1(string signKey, string signMessage)
{
// Some code here
}
private string CreateSignature(string stringIn, string scretKey)
{
// Some code here
}
}
Right now, I am confused as to where to put this file in the "Solution Explorer" in order to
run the file and get the output on my browser?
Right now I have this code inside "Models-->Class1.cs" directory as shown in the image below:
So, when I press F-5 key, I am getting directed to the home page of the ASP.NET with the URL http://localhost:4439/
Do I need to make any changes here?