Kafka Producer for .NET Core

KafkaProducer.csproj

<Project Sdk="Microsoft.NET.Sdk">                                                                                                        
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp2.0</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Confluent.Kafka" Version="0.11.2" />
  </ItemGroup>
</Project>

Program.cs

namespace KafkaProducer                                                                                                                    
{
  using System;
  using System.Collections.Generic;
  using System.Text;
  using Confluent.Kafka;
  using Confluent.Kafka.Serialization;
  
  public class Program
  {
    static void Main(string[] args)
    {
      var config = new Dictionary<string, object>
      {
        { "bootstrap.servers", "localhost:9092" }
      };

      using (var producer = new Producer<Null, string>(config, null, new StringSerializer(Encoding.UTF8)))
      {
        string text = null;

        while (text != "exit")
        {
          text = Console.ReadLine();                                                                                                                                                              
          producer.ProduceAsync("hello-topic", null, text);
        }

        producer.Flush(100);
      }
    }
  }
}