public static void Main() { var config = new ConfigurationBuilder() .SetBasePath(Directory.GetParent(AppContext.BaseDirectory).FullName) .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true).Build(); ; var host = Environment.GetEnvironmentVariable("CLOUDAMQP_URL"); if (string.IsNullOrEmpty(host)) { host = config["Settings:RabbitMQCredentials:Host"]; } var exchange = config["Settings:RabbitMQCredentials:Exchange"]; var retryExchange = exchange + ".retry"; var queue = config["Settings:RabbitMQCredentials:Queue"]; var retryQueue = queue + ".retry"; var routingKey = config["Settings:RabbitMQCredentials:RoutingKey"]; var postProcessor = new RabbitMessageRePublisher(host, retryExchange, retryQueue, exchange, routingKey); var requester = new PostRequester(postProcessor); using var consumer = new MessageConsumer(host, exchange, queue, routingKey, requester); consumer.Initialize(); Console.ReadLine(); }