v7.cs

//
// Sample C# code to index a document in Elasticsearch v7 and v8 using the v7 client.
//
// Install required libraries:
// $ dotnet add package NEST
//
// Enable v8 compatibility mode:
// $ export ELASTIC_CLIENT_APIVERSIONING=true
//
// Run!
// $ dotnet run
//

using Elasticsearch.Net;
using Nest;


public class Person
{
    [PropertyName("id")]
    public int Id { get; set; }

    [PropertyName("first_name")]
    public string FirstName { get; set; }

    [PropertyName("last_name")]
    public string LastName { get; set; }

    public Person()
    {
        Random rnd = new Random();
        Id = rnd.Next();
        FirstName = "f";
        LastName = "l";
    }

    static void Main(string[] args)
    {
        var uri = "https://<whatever>.eastus2.azure.elastic-cloud.com:443";
        var apiKey = "<base64 encoded api key>";

        var connectionSettings = new ConnectionSettings(new Uri(uri))
            .ApiKeyAuthentication(new ApiKeyAuthenticationCredentials(apiKey))
            .DefaultIndex("people")
            .PrettyJson()
            .EnableDebugMode();
        var client = new ElasticClient(connectionSettings);

        var p = new Person();
        var response = client.IndexDocument(p);

        Console.Out.WriteLine(response);
    }
}