RAG with `Azure Search` (Retrieval) and (Augmented) `Azure OpenAI` (Generation) using `Microsoft.SemanticKernel.Connectors.OpenAI` `1.15.1`

RAG1.cs

using Azure;
using Azure.AI.OpenAI;

var prompt = "..";

var azureOpenaiEndpoint = "https://...openai.azure.com/";
var azureOpenaiApiKey= "..";
var azureOpenAiDeploymentName = "..";

var azureSearchApiKey= "..";
var azureSearchEndpoint = "https://...search.windows.net";
var azureSearchIndexName = "..";

var openAiClient = new OpenAIClient(new Uri(azureOpenaiEndpoint), new AzureKeyCredential(azureOpenaiApiKey));

var chatCompletions = openAiClient.GetChatCompletions(new ChatCompletionsOptions
{
    DeploymentName = azureOpenAiDeploymentName,
    Messages =
    {
        new ChatRequestUserMessage(prompt),
    },
    AzureExtensionsOptions = new AzureChatExtensionsOptions
    {
        Extensions =
        {
            new AzureSearchChatExtensionConfiguration
            {
                Authentication = new OnYourDataApiKeyAuthenticationOptions(azureSearchApiKey),
                SearchEndpoint = new Uri(azureSearchEndpoint),
                IndexName = azureSearchIndexName,
            }
        }
    }
});

Console.WriteLine(chatCompletions.Value.Choices.First().Message.Content);