.NET Backend Sample
Send push notifications to your users with this .NET code sample.
The following code will send a push notification to devices with {message: "Hello World!"} as the payload.
public static void SendSamplePush()
{
// Prepare array of target device tokens
List<string> deviceTokens = new List<string>();
// Add your device tokens here
deviceTokens.Add("cdd92f4ce847efa5c7f");
// Convert to string[] array
string[] to = deviceTokens.toArray();
// Optionally, send to a publish/subscribe topic instead
// string to = '/topics/news';
// Set payload (it can be any object)
var payload = new Dictionary<string, string>();
// Add message parameter to dictionary
payload.Add("message", "Hello World!");
// iOS notification fields
var notification = new Dictionary<string, object>();
notification.Add("badge", 1);
notification.Add("sound", "ping.aiff");
notification.Add("title", "Test Notification");
notification.Add("body", "Hello World \u270c");
// Prepare the push HTTP request
PushyPushRequest push = new PushyPushRequest(payload, to, notification);
try
{
// Send the push notification
PushyAPI.SendPush(push);
}
catch (Exception exc)
{
// Write error to console
Console.WriteLine(exc);
}
}Create a file named PushyAPI.cs and paste the following code inside it:
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
namespace Pushy
{
class PushyAPI
{
// Insert your Secret API Key here
public static readonly string SECRET_API_KEY = "SECRET_API_KEY";
public static void SendPush(PushyPushRequest push)
{
// Create an HTTP request to the Pushy API
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://api.pushy.me/push?api_key=" + SECRET_API_KEY);
// Send a JSON content-type header
request.ContentType = "application/json";
// Set request method to POST
request.Method = "POST";
// Convert request post body to JSON (using JSON.NET package from Nuget)
string postData = JsonConvert.SerializeObject(push);
// Convert post data to a byte array
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
// Set the ContentLength property of the WebRequest
request.ContentLength = byteArray.Length;
// Get the request stream
Stream dataStream = request.GetRequestStream();
// Write the data to the request stream
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the stream
dataStream.Close();
// Proceed with caution
WebResponse response;
try
{
// Execute the request
response = request.GetResponse();
}
catch (WebException exc)
{
// Get returned JSON error as string
string errorJSON = new StreamReader(exc.Response.GetResponseStream()).ReadToEnd();
// Parse into object
PushyAPIError error = JsonConvert.DeserializeObject<PushyAPIError>(errorJSON);
// Throw error
throw new Exception(error.error);
}
// Open the stream using a StreamReader for easy access
StreamReader reader = new StreamReader(response.GetResponseStream());
// Read the response JSON for debugging
string responseData = reader.ReadToEnd();
// Clean up the streams
reader.Close();
response.Close();
dataStream.Close();
}
}
class PushyPushRequest
{
public object to;
public object data;
public object notification;
public PushyPushRequest(object data, object to, object notification)
{
this.to = to;
this.data = data;
this.notification = notification;
}
}
class PushyAPIError
{
public string error;
public PushyAPIError(string error)
{
this.error = error;
}
}
}Note: Make sure to replace SECRET_API_KEY with your app's Secret API Key, available in the Pushy Dashboard (Click your app -> API Authentication tab). This is a backend API endpoint. Never expose your application's Secret API Key in your client code.