Elasticstretch Extensions

Extensions for the Elasticsearch .NET client.

Features

• Inject/resolve Elasticsearch clients using Microsoft.Extensions.DependencyInjection.
• Configure Elasticsearch clients using Microsoft.Extensions.Options.
• Load config properties using Microsoft.Extensions.Configuration.
• Configurable HTTP handlers/logging using Microsoft.Extensions.Http.

Installation

Add the NuGet package to your project:

$ dotnet add package Elasticstretch.DependencyInjection

Usage

Resolving clients

Elasticstretch Dependency Injection works out-of-the-box after registering with an IServiceCollection.

services.AddElasticsearchClient();
services.AddSingleton<MyService>();

Inject the Elasticsearch client via constructor.

public MyService(ElasticsearchClient client)
{
    // Client is a singleton managed by the container.
    Client = client;
}

Configuring clients

Supported configuration properties are bound to the Elasticsearch section of .NET configuration providers, such as appsettings.json.

{
  "Elasticsearch": {
    "NodeUris": [
      "https://node1.example.com:9200",
      "https://node2.example.com:9200",
      "https://node3.example.com:9200",
      "https://node4.example.com:9200",
      "https://node5.example.com:9200"
    ],
    "Credentials": {
      "ApiKeyId": "elasticstretch",
      "ApiKey": "abcdef12345"
    },
    "UseSniffing": true,
    "Randomize": true
  }
}

You can also leverage ElasticsearchClientOptions for additional customization, such as serialization.

services.Configure<ElasticsearchClientOptions>(
    options =>
    {
        options.ConfigureSettings += settings => settings.ThrowExceptions();
        options.SourceSerializer =
            settings => new DefaultSourceSerializer(settings, x => x.WriteIndented = true);
    })