public ConsoleHost(string[] args)
{
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Debug()
.MinimumLevel.Override("Microsoft", LogEventLevel.Warning)
.MinimumLevel.Override("System", LogEventLevel.Warning)
.MinimumLevel.Override("CoinbasePro", LogEventLevel.Information)
.MinimumLevel.Override("Microsoft.Azure.KeyVault", LogEventLevel.Verbose)
.MinimumLevel.Override("CoinbasePro.Application.RabbitMq", LogEventLevel.Verbose)
.Enrich.FromLogContext()
.WriteTo.Console()
.CreateLogger();
var builder = new HostBuilder().UseConsoleLifetime();
builder.ConfigureHostConfiguration(config => {
config.AddEnvironmentVariables(); // pulls environment name from Properties/launchSettings.json
});
builder.ConfigureLogging((hostingContext, config) => {
config.AddSerilog();
});
builder.ConfigureAppConfiguration((hostContext, configurationBuilder) =>
{
var env = hostContext.HostingEnvironment;
configurationBuilder.SetBasePath(env.ContentRootPath);
// These files are copied to bin in the build, so needs rebuild to push changes into app
configurationBuilder.AddJsonFile("appsettings.json", optional: false, true);
configurationBuilder.AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);
configurationBuilder.AddEnvironmentVariables();
if (args != null)
{
configurationBuilder.AddCommandLine(args);
}
var builtConfig = configurationBuilder.Build();
Register.AddAzureKeyVault(builtConfig, configurationBuilder);
});
builder.ConfigureServices((hostContext, services) =>
{
// --------------------------------------------
// Coinbase Pro log-on credentials, usually these should be saved in the Azure Key vault so they're never exposed
// without Azure, comment out the azureServiceTokenProvider part above and use the app config file directly
services.AddSingleton <IAuthenticator>(new Authenticator(hostContext.Configuration["apiKey"]
, hostContext.Configuration["apiSecret"]
, hostContext.Configuration["passPhrase"]));
// Customise the HttpClient to ensure we don't ever get HTTP 429 rate limit errors
services.AddSingleton <IHttpClient>(new RateLimitedHttpClient(3, 2.1));
services.AddSingleton <ICoinbaseProClient, CoinbaseProClient>();
// --------------------------------------------
// The IStartupWorkflow controls the startup order of services in order
// the ensure inter dependencies receive events or data correctly
// As all the services are not yet in Github ensure CandleMonitor can still start
// so use StartupWorkflow.ForCandleMonitorOnly()
services.AddSingleton(sp => StartupWorkflow.ForCandleMonitorOnly());
// Usually SQL Server would be used (sql scripts not in Github yet)
//services.AddSingleton<ICandleProvider, SqlServerCandleProvider>();
//services.AddTransient<ICandleMonitorFeedProvider, SqlServerCandleMonitorFeed>();
// Instead use the CSV route for ease of demonstration
services.AddSingleton <ICandleProvider, CsvCandleProvider>();
// Setup the markets to pull data for
services.AddTransient <ICandleMonitorFeedProvider>(sp => new CsvCandleMonitorFeed(new List <CandleMonitorFeeds>()
{
new CandleMonitorFeeds(ProductType.BtcUsd, CandleGranularity.Hour1),
new CandleMonitorFeeds(ProductType.EthUsd, CandleGranularity.Hour1),
new CandleMonitorFeeds(ProductType.EthEur, CandleGranularity.Minutes15),
new CandleMonitorFeeds(ProductType.DaiUsdc, CandleGranularity.Hour1)
})
);
// Use the event driven candle production / consumption
services.AddSingleton <CandleProducerConsumer>();
services.AddSingleton <ICandleProducer>(x => x.GetRequiredService <CandleProducerConsumer>());
services.AddSingleton <ICandleConsumer>(x => x.GetRequiredService <CandleProducerConsumer>());
// Add the hosted services
services.AddSingleton <ICandleMonitor, CandleMonitor>();
services.AddHostedService <HostedService <ICandleMonitor> >();
//// Finish up and add database
// services.AddDbContext<CryptoDbX>(options =>
// {
// options.UseSqlServer(hostContext.Configuration.GetConnectionString("MyDbConnection"),
// // retry https://blogs.msdn.microsoft.com/cesardelatorre/2017/03/26/using-resilient-entity-framework-core-sql-connections-and-transactions-retries-with-exponential-backoff/
// sqlServerOptionsAction: sqlOptions =>
// {
// sqlOptions.EnableRetryOnFailure(
// maxRetryCount: 5,
// maxRetryDelay: TimeSpan.FromSeconds(30),
// errorNumbersToAdd: null);
// });
// options.EnableSensitiveDataLogging(Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT") != "Production");
// });
services.Configure <AppSetting>(hostContext.Configuration);
// All calls to services.Configure *MUST* have come before this
ServiceProvider = services.BuildServiceProvider();
});
_host = builder.Build();
//// Automatically perform database migration
//serviceProvider.GetService<CryptoXContext>().Database.Migrate();
}