private static IElasticClient GetElasticClient(ElasticSearchConfiguration elasticConfiguration)
{
var pool = new StaticConnectionPool(elasticConfiguration.EsNodeUris);
var settings = new ConnectionSettings(pool).DefaultIndex(elasticConfiguration.EsIndex)
.DefaultMappingFor <DummyDoc>(m => m.IndexName(elasticConfiguration.EsIndex).TypeName(typeof(DummyDoc).Name))
.EnablePrometheus(); // Enable Prometheus instrumentation
return(new ElasticClient(settings));
}
static void Main(string[] args)
{
var exitEvent = new ManualResetEvent(false);
Console.CancelKeyPress += (sender, ev) =>
{
exitEvent.Set();
ev.Cancel = true;
};
MetricServer metricServer = new MetricServer(port: 1234); // http://localhost:1234/metrics
metricServer.Start();
var conf = new ElasticSearchConfiguration()
{
EsIndex = "dummy-index",
EsNodes = new List <string>()
{
"http://localhost:9200"
}
};
var client = GetElasticClient(conf);
var id = Guid.NewGuid().ToString();
// Test Save
var dummyDoc = new DummyDoc()
{
Id = id,
Subject = "It is a dummy doc"
};
var response = client.Index(new IndexRequest <DummyDoc>(dummyDoc, index: conf.EsIndex,
type: typeof(DummyDoc).Name, id: dummyDoc.Id));
if (!response.IsValid)
{
Console.Error.WriteLine(response.OriginalException.Message);
}
Console.WriteLine($"Dummy doc with id {id} saved on index {conf.EsIndex}");
//Test Get
var response2 = client.Get <DummyDoc>(new GetRequest(index: conf.EsIndex,
type: typeof(DummyDoc).Name, id: id));
if (!response2.IsValid)
{
Console.Error.WriteLine(response2.OriginalException.Message);
}
Console.WriteLine($"Dummy doc retrieved {response2.Found}");
Console.WriteLine("curl http://localhost:1234/metrics to check elasticsearch_* metrics");
Console.WriteLine("Press Ctrl+C to exit");
exitEvent.WaitOne();
if (metricServer != null)
{
metricServer.StopAsync().Wait();
}
}