public static IServiceCollection AddFcmConfig(this IServiceCollection services, Func <FcmConfig> func)
{
FcmConfig config = func.Invoke();
services.AddFcmConfig(config);
return(services);
}
private static FcmConfig ReadConfig(StreamReader reader)
{
FcmConfig config = null;
try
{
string serverKey = reader.ReadLine();
string destinationDeviceId = reader.ReadLine();
reader.Close();
config = new FcmConfig {
ServerKey = serverKey, DestinationDeviceId = destinationDeviceId
};
}
catch (Exception ex)
{
DisplayError("ReadConfig", ex);
}
finally
{
reader.Close();
}
return(config);
}
private static async Task SendFcmPushNotification(FcmConfig config, string title, string messageBody)
{
const string BASEURL = "https://fcm.googleapis.com/fcm/send";
var messageInformation = new FcmMessage()
{
notification = new Payload()
{
title = title,
body = messageBody
},
data = null,
to = config.DestinationDeviceId
};
//Object to JSON STRUCTURE => using Newtonsoft.Json;
string jsonMessage = JsonConvert.SerializeObject(messageInformation);
// Create request to Firebase API
var request = new HttpRequestMessage(HttpMethod.Post, BASEURL);
request.Headers.TryAddWithoutValidation("Authorization", "key=" + config.ServerKey);
request.Content = new StringContent(jsonMessage, Encoding.UTF8, "application/json");
HttpResponseMessage result;
using (var client = new HttpClient())
{
result = await client.SendAsync(request);
}
Console.WriteLine("Result = " + result.StatusCode.ToString());
}
public static IServiceCollection AddFcmConfig(this IServiceCollection services, Func <IServiceProvider, FcmConfig> func)
{
IServiceProvider provider = services.BuildServiceProvider();
FcmConfig config = func(provider);
services.AddFcmConfig(config);
return(services);
}
static void Main(string[] args)
{
////////////////////////////////////////////////////////////////////
// it is expected to have 3 args.
// - config file (text)
// - message
// - title
////////////////////////////////////////////////////////////////////
if (args.Length != 3)
{
DisplayError("Need 3 arguments: (1) config file, (2) message, (3) title");
return;
}
string configPath = args[0];
string messageBody = args[1];
string title = args[2];
if (!File.Exists(configPath))
{
DisplayError($"File not found: {configPath}");
return;
}
FcmConfig config = null;
using (var reader = new StreamReader(File.OpenRead(configPath)))
{
config = ReadConfig(reader);
}
if (config == null)
{
return;
} //error will be displayed, so just exit
Task.Run(() => SendFcmPushNotification(config, title, messageBody))
.GetAwaiter()
.GetResult();
Console.WriteLine("End");
}
public static IServiceCollection AddFcmConfig(this IServiceCollection services, FcmConfig config)
{
services.AddSingleton <FcmConfig>(config);
return(services);
}
