The .NET API client

Algolia’s .NET API client lets you use Algolia’s APIs from your .NET application. Compared to using the APIs directly, using the .NET API client has these benefits:

• Network retry strategy. The API client automatically retries connecting to another Algolia server, if the connection fails. Thanks to that, using the API clients is covered by Algolia’s SLA.

• Reindexing. The API clients let you reindex your records in a single operation.

• Automatic batching. When you add records to your index, the API client automatically batches your records to make fewer API requests.

Algolia’s .NET API client is open source. You can find the source code on GitHub.

You’re reading the documentation for version 6 of the .NET API client. Earlier versions are no longer under active development. If you want to update to version 6, see the upgrade guide.

Quickstart sample app

To download and run a self-contained example, see the .NET quickstart on GitHub.

ASP.NET

If you’re using ASP.NET, check out this tutorial.

Install the .NET API client

The API client supports:

• .NET Standard versions 1.3 to 2.1
• .NET Core versions 1.0 to 3.1
• .NET Framework versions 4.6 to 4.8

Install via the .NET CLI

If you already initialized a .NET project with the CLI, run:

1
dotnet add package Algolia.Search

You can initialize a new .NET project with:

1
dotnet new <TYPE>

Replace <TYPE> with the type of application you want to build. For example, with dotnet new console you can create a new command-line application.

Install via NuGet

1
Install-Package Algolia.Search

Download the package

You can download the package from NuGet.org.

Test your installation

If you haven’t already, create an Algolia account and create a new Algolia app to get started.

To test whether you can connect to Algolia, run a simple program that adds a record to a new index, searches the index, and print the results.

The following example uses the .NET CLI.

1. Create a new .NET project and install the Algolia .NET API client:

   Shell

   Copy

   1
   2
   3
   dotnet new console -o AlgoliaExample
   cd AlgoliaExample
   dotnet add Algolia.Search
   

2. Open the file Program.cs with a text editor and replace its content with the following code. Replace YourApplicationID with your Algolia application ID and YourWriteAPIKey with your Admin API key. You can find both in your Algolia account.

   C#

   Copy

   1
   2
   3
   4
   5
   6
   7
   8
   9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   // Program.cs
   using System;
   using System.Linq;
   using System.Collections.Generic;
   using Algolia.Search.Clients;
   using Algolia.Search.Model.Search;
   
   namespace HelloAlgolia
   {
     // a simple record in your index
     class Record
     {
       public string Name { get; set; }
       public string ObjectID { get; set; }
       public override string ToString()
       {
          return $"Name: {Name}, ObjectID: {ObjectID}";
       }
     }
   
     class Program
     {
       static void Main(string[] args)
       {
          // Connect and authenticate with your Algolia app
          var client = new SearchClient(
             "YourApplicationID",
             "YourWriteAPIKey"
          );
   
          // Create a new index and add a record
          var index = client.InitIndex("test_index");
          var record = new Record{ ObjectID = "1", Name = "test_record" };
          index.SaveObject(record).Wait();
   
          // Search the index and print the results
          var results = index.Search<Record>(new Query("test_record"));
          Console.WriteLine(results.Hits.ElementAt(0).ToString());
       }
     }
   }
   

3. Inside your project directory, run:

   Shell

   Copy

   1
   dotnet run
   

4. If the program ran successfully, you should see:

   Copy

   1
   Name: test_record, ObjectID: 1
   

You can inspect your index now in the Algolia dashboard.

Next steps

Now you can interact with the Algolia Search API, you can look at the available methods, for example, for search or indexing.

Other APIs, for example for Algolia Recommend or Analytics, come with their own clients. To get an overview, see Initialize the API client.