OpenAI Tutorial #2 - Chat Completion
Table of Contents
Introduction
In this tutorial, you'll learn how to use OpenAI's chat completion feature to create a simple application that generates text similar to ChatGPT. This guide provides step-by-step instructions to help you understand the process and implement it effectively.
Step 1: Set Up Your Environment
Before you start coding, ensure you have the necessary tools and resources.
- Install Node.js: Download and install Node.js from the official website.
- Set Up a Code Editor: Use Visual Studio Code for an optimal coding experience. Download it from here.
- Create a New Project: Open your terminal or command prompt and run the following commands:
mkdir chat-completion-app cd chat-completion-app npm init -y
Step 2: Install OpenAI SDK
To interact with the OpenAI API, you need to install the OpenAI SDK.
- Run the following command in your terminal:
npm install openai
Step 3: Set Up Your API Key
You will need an API key from OpenAI to authenticate your requests.
- Get Your API Key: Sign up or log in to your OpenAI account and navigate to the API section to create a new key.
- Store Your API Key: Create a
.env
file in your project directory and add your API key:OPENAI_API_KEY=your_api_key_here
Step 4: Create a Basic Chat Completion Script
Now, you will write a script to send a prompt to the OpenAI API and receive a response.
- Create a file named
chat.js
and add the following code:require('dotenv').config(); const { Configuration, OpenAIApi } = require('openai'); const configuration = new Configuration({ apiKey: process.env.OPENAI_API_KEY, }); const openai = new OpenAIApi(configuration); async function getChatResponse(prompt) { const response = await openai.createChatCompletion({ model: "gpt-3.5-turbo", messages: [{ role: "user", content: prompt }], }); return response.data.choices[0].message.content; } getChatResponse("Hello, how can I use OpenAI?") .then(console.log) .catch(console.error);
Step 5: Run Your Application
Execute your script to see the chat completion in action.
-
In your terminal, run the following command:
node chat.js
-
You should see the AI's response in the terminal.
Step 6: Customize the Application
Feel free to modify the prompt to see how the model responds to different queries.
- Experiment with various prompts to test the text generation capabilities.
- You can also implement a user interface using HTML/CSS if you want to expand the application further.
Conclusion
You have successfully created a simple chat application using OpenAI's chat completion feature. You've learned how to set up your environment, install the necessary tools, and write a script that interacts with the OpenAI API.
Next steps could include enhancing the application with a user interface or integrating it into a larger project. Happy coding!