README.md

Chat Completion using Azure OpenAI SDK

We start our code journey by first using the Azure OpenAI SDK to generate chat completions. We will use the GPT-3.5 model for this purpose.

There are 5 basic steps that are needed for any Chat Completion

1. Populate the Azure OpenAI Configuration variables
2. Create the Azure OpenAI Client
3. Create the Azure OpenAI Chat Completion Object
4. Call the GetChatCompletionAsync method 
5. Display the Chat Completion Response

Step 1: Populate the Azure OpenAI Configuration variables

   var openAiDeployment = ConfigurationManager.AppSettings.Get("AzureOpenAIModel");
   var openAiUri = ConfigurationManager.AppSettings.Get("AzureOpenAIEndpoint");
   var openAiApiKey = ConfigurationManager.AppSettings.Get("AzureOpenAIKey");

Step 2: Create the Azure OpenAI Client

   OpenAIClient client = new OpenAIClient(
      new Uri(openAiUri!),
      new AzureKeyCredential(openAiApiKey!));

Step 3: Create the Azure OpenAI Chat Completion Object

   var chatCompletionsOptions = new ChatCompletionsOptions()
    {
        DeploymentName = openAiDeployment, // Use DeploymentName for "model" with non-Azure clients
        Messages =
        {
            // The system message represents instructions or other guidance about how the assistant should behave
            new ChatRequestSystemMessage("You are a helpful assistant. You will talk like a pirate."),
            // User messages represent current or historical input from the end user
            new ChatRequestUserMessage("Can you help me?"),
            // Assistant messages represent historical responses from the assistant
            new ChatRequestAssistantMessage("Arrrr! Of course, me hearty! What can I do for ye?"),
            new ChatRequestUserMessage("What's the best way to train a parrot?"),
        }
    };

Step 4: Call the GetChatCompletionAsync method

   Response<ChatCompletions> response = await client.GetChatCompletionsAsync(chatCompletionsOptions);

Step 5: Display the Chat Completion Response

   ChatResponseMessage responseMessage = response.Value.Choices[0].Message;
   Console.WriteLine($"[{responseMessage.Role.ToString().ToUpperInvariant()}]: {responseMessage.Content}");