static async Task Main(string[] args)
{
string basePath = (Debugger.IsAttached) ? Directory.GetCurrentDirectory() : AppDomain.CurrentDomain.BaseDirectory;
var configBuilder = new ConfigurationBuilder()
.SetBasePath(basePath)
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: false)
.AddEnvironmentVariables();
var config = configBuilder.Build();
// connect to RabbitMQ
var conn = Utils.ConnectRabbitMQ(config);
// token signing key
byte[] tokenKey = null;
// configure keys through RabbitMQ exchange
await KeyDistributor.ConfigureAsync(
config["RabbitMQ:Exchanges:KeyDistribution"],
conn,
keys => {
TelemetryConfiguration.Active.InstrumentationKey = keys.AppInsightsInstrumKey;
tokenKey = keys.JwtIssuerKey;
});
// set app insights developer mode (remove lags when sending telemetry)
TelemetryConfiguration.Active.TelemetryChannel.DeveloperMode = true;
// set service name in app insights
TelemetryConfiguration.Active.TelemetryInitializers.Add(new CustomTelemetryInitializer(serviceName));
// telemetry client instance
var telemetry = new TelemetryClient();
// token validation parameters
var tokenValidationParameters = new TokenValidationParameters
{
ValidateAudience = false,
ValidateIssuer = false,
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(tokenKey)
};
// security options for RabbitMQ service
var securityOptions = new SecurityOptions(
// map of request types to scope names
new Dictionary <string, string>()
{
{ nameof(Ping1), "1" },
{ nameof(Ping2), "2" },
{ nameof(Ping3), "3" },
{ nameof(Ping4), "4" }
},
tokenValidationParameters);
// set host configuration
var hostBuilder = new HostBuilder()
.ConfigureHostConfiguration(c => c
.SetBasePath(basePath)
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true))
.ConfigureServices((context, services) => {
services.AddSingleton <TelemetryClient>(telemetry);
services.AddSingleton <SecurityOptions>(securityOptions);
services.AddSingleton <IConnection>(conn);
services.AddHostedService <BangService>();
});
var host = hostBuilder.Build();
// send ready signal
await ReadyChecker.SendReadyAsync(config["RabbitMQ:Exchanges:ReadyCheck"], conn, serviceName);
// run host and wait for shutdown signal
await host.StartAsync();
await Shutdowner.ShutdownAsync(config["RabbitMQ:Exchanges:Shutdown"], conn, () => host.StopAsync());
// flush telemetry
telemetry?.Flush();
Task.Delay(1000).Wait();
Console.WriteLine("Bye!");
}
static async Task Main(string[] args)
{
string basePath = (Debugger.IsAttached) ? Directory.GetCurrentDirectory() : AppDomain.CurrentDomain.BaseDirectory;
var configBuilder = new ConfigurationBuilder()
.SetBasePath(basePath)
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: false)
.AddEnvironmentVariables();
if (Debugger.IsAttached)
{
configBuilder.AddJsonFile("appsettings.Development.json", optional: true, reloadOnChange: false);
}
var config = configBuilder.Build();
// connect to RabbitMQ
var conn = Utils.ConnectRabbitMQ(config);
// token signing key
byte[] tokenKey = null;
// app insights key
string appInsKey = null;
// configure keys through RabbitMQ exchange
await KeyDistributor.ConfigureAsync(
config["RabbitMQ:Exchanges:KeyDistribution"],
conn,
keys => {
appInsKey = keys.AppInsightsInstrumKey;
tokenKey = keys.JwtIssuerKey;
});
// set app insights developer mode (remove lags when sending telemetry)
TelemetryConfiguration.Active.TelemetryChannel.DeveloperMode = true;
// token validation parameters
var tokenValidationParameters = new TokenValidationParameters
{
ValidateAudience = false,
ValidateIssuer = false,
ValidateIssuerSigningKey = true,
IssuerSigningKey = new SymmetricSecurityKey(tokenKey)
};
// set host configuration
var hostBuilder = new WebHostBuilder()
.UseConfiguration(config)
.ConfigureLogging(logging =>
{
logging.AddConfiguration(config.GetSection("Logging"));
logging.AddConsole();
})
.ConfigureServices(services =>
{
services.AddSingleton <IConnection>(conn);
services.AddSingleton <ITelemetryInitializer>(new CustomTelemetryInitializer("apigw"));
services.AddApplicationInsightsTelemetry(appInsKey);
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(options =>
{
options.TokenValidationParameters = tokenValidationParameters;
options.SaveToken = true;
});
services.AddMvc(options => options.Filters.Add(new ExceptionFilter()));
})
.Configure(app =>
{
app.UseAuthentication();
app.UseMvc();
})
.UseKestrel();
var host = hostBuilder.Build();
// send ready signal
await ReadyChecker.SendReadyAsync(config["RabbitMQ:Exchanges:ReadyCheck"], conn, serviceName);
// run host and wait for shutdown signal
await host.StartAsync();
await Shutdowner.ShutdownAsync(config["RabbitMQ:Exchanges:Shutdown"], conn, () => host.StopAsync());
// telemetry client instance
var telemetry = host.Services.GetService <TelemetryClient>();
// flush telemetry
telemetry?.Flush();
Task.Delay(1000).Wait();
Console.WriteLine("Bye!");
}