public static IServiceCollection AddBus(this IServiceCollection services, Action <BusOptions> configure = null)
{
var busOptions = new BusOptions();
if (configure != null)
{
configure.Invoke(busOptions);
}
services.AddSingleton(busOptions);
var serviceProvider = services.BuildServiceProvider();
var configuration = serviceProvider.GetRequiredService <IConfiguration>();
var rabbitUrl = serviceProvider.GetRequiredService <IConfiguration>().GetConnectionString("RabbitMQ");
if (!busOptions.Token.IsValid)
{
configuration.GetSection(JwtTokenParameters.ConfigurationSection).Bind(busOptions.Token);
}
if (string.IsNullOrEmpty(rabbitUrl))
{
throw new BusException("Connection string named 'RabbitMQ' is required.");
}
ConnectionFactory factory = new ConnectionFactory
{
Uri = new Uri(rabbitUrl),
};
var envName = serviceProvider.GetRequiredService <IHostEnvironment>().EnvironmentName;
using (var conn = factory.CreateConnection())
using (var model = conn.CreateModel())
{
model.ExchangeDeclare($"{envName}".ToLower(), ExchangeType.Direct, true);
var deadletter = $"{envName}.deadletter".ToLower();
model.ExchangeDeclare(deadletter, ExchangeType.Fanout, true);
model.QueueDeclare(deadletter, true, false, false);
model.QueueBind(deadletter, deadletter, string.Empty);
model.Close();
conn.Close();
}
return(services);
}