Rumah > Artikel > pembangunan bahagian belakang > Mencipta AI Chatbot dengan CopilotKit: Panduan Langkah demi Langkah Menggunakan Flask dan React
Mencipta bot sembang AI menggunakan CopilotKit yang disepadukan dengan bahagian belakang Flask boleh menjadi projek yang menarik. Di bawah ialah panduan langkah demi langkah tentang cara menyediakan projek anda, termasuk komponen yang diperlukan untuk kedua-dua bahagian hadapan (menggunakan React dan CopilotKit) dan bahagian belakang (menggunakan Flask).
Mula-mula, cipta persekitaran maya dan pasang Flask:
mkdir chatbot-backend cd chatbot-backend python -m venv venv source venv/bin/activate # On Windows use `venv\Scripts\activate` pip install Flask flask-cors
Buat fail bernama app.py:
from flask import Flask, request, jsonify from flask_cors import CORS import openai # Make sure to install OpenAI SDK if you're using it app = Flask(__name__) CORS(app) # Allow CORS for all domains # Set your OpenAI API key openai.api_key = 'YOUR_OPENAI_API_KEY' @app.route('/api/chat', methods=['POST']) def chat(): user_message = request.json.get('message') # Call the AI model (e.g., OpenAI GPT) response = openai.ChatCompletion.create( model="gpt-3.5-turbo", messages=[{"role": "user", "content": user_message}] ) bot_message = response.choices[0].message['content'] return jsonify({'response': bot_message}) if __name__ == '__main__': app.run(debug=True)
Jalankan apl Flask anda:
python app.py
Halaman belakang anda kini sepatutnya berjalan pada http://127.0.0.1:5000.
Dalam direktori baharu, buat apl React anda:
npx create-react-app chatbot-frontend cd chatbot-frontend
Pasang CopilotKit dan Axios untuk membuat panggilan API:
npm install @copilotkit/react axios
Buat fail bernama Chatbot.js dalam direktori src:
import React, { useState, useEffect } from 'react'; import axios from 'axios'; import { CopilotSidebar, useCopilotChat } from '@copilotkit/react'; import './Chatbot.css'; // Importing CSS file for styling const Chatbot = () => { const [message, setMessage] = useState(''); const [chatHistory, setChatHistory] = useState([]); const [selectedPrompt, setSelectedPrompt] = useState(''); const [conversations, setConversations] = useState([]); const [prompts, setPrompts] = useState([]); const [newPrompt, setNewPrompt] = useState(''); const [searchTerm, setSearchTerm] = useState(''); const [showPromptInput, setShowPromptInput] = useState(false); // State to toggle prompt input visibility const { addMessage } = useCopilotChat(); useEffect(() => { // Load conversations and prompts from local storage on component mount const storedChats = JSON.parse(localStorage.getItem('chatHistory')) || []; const storedPrompts = JSON.parse(localStorage.getItem('prompts')) || []; setConversations(storedChats); setPrompts(storedPrompts); // Load the most recent conversation into chat history if available if (storedChats.length > 0) { setChatHistory(storedChats[storedChats.length - 1].history); } }, []); const handleSendMessage = async () => { const userMessage = { sender: 'User', text: message }; const updatedChatHistory = [...chatHistory, userMessage]; setChatHistory(updatedChatHistory); setMessage(''); try { const response = await axios.post('http://127.0.0.1:5000/api/chat', { message }); const botMessage = { sender: 'Bot', text: response.data.response }; updatedChatHistory.push(botMessage); setChatHistory(updatedChatHistory); // Add messages to Copilot addMessage(userMessage); addMessage(botMessage); // Save updated chat history to local storage localStorage.setItem('chatHistory', JSON.stringify(updatedChatHistory)); } catch (error) { console.error('Error sending message:', error); } }; const handlePromptSelect = (prompt) => { setSelectedPrompt(prompt); setMessage(prompt); }; const handleConversationClick = (conversation) => { setChatHistory(conversation.history); }; const handleSaveConversation = () => { const title = prompt("Enter a title for this conversation:"); if (title) { const newConversation = { title, history: chatHistory }; const updatedConversations = [...conversations, newConversation]; setConversations(updatedConversations); localStorage.setItem('chatHistory', JSON.stringify(updatedConversations)); } }; const handleAddPrompt = () => { if (newPrompt.trim()) { const updatedPrompts = [...prompts, newPrompt.trim()]; setPrompts(updatedPrompts); localStorage.setItem('prompts', JSON.stringify(updatedPrompts)); setNewPrompt(''); setShowPromptInput(false); // Hide the input after adding } }; // Function to delete a conversation const handleDeleteConversation = (index) => { const updatedConversations = conversations.filter((_, i) => i !== index); setConversations(updatedConversations); localStorage.setItem('chatHistory', JSON.stringify(updatedConversations)); // Optionally reset chat history if the deleted conversation was currently loaded if (chatHistory === conversations[index].history) { setChatHistory([]); } }; // Filtered prompts based on search term const filteredPrompts = prompts.filter(prompt => prompt.toLowerCase().includes(searchTerm.toLowerCase()) ); // Filtered conversations based on search term const filteredConversations = conversations.filter(conversation => conversation.title.toLowerCase().includes(searchTerm.toLowerCase()) ); return ( <div className="chatbot-container"> <CopilotSidebar title="Recent Conversations"> <input type="text" placeholder="Search Conversations..." value={searchTerm} onChange={(e) => setSearchTerm(e.target.value)} className="search-input" /> {filteredConversations.map((conversation, index) => ( <div key={index} className="conversation-title"> <span onClick={() => handleConversationClick(conversation)}> {conversation.title} </span> <button className="delete-button" onClick={() => handleDeleteConversation(index)}> ?️ {/* Delete icon */} </button> </div> ))} <button onClick={handleSaveConversation} className="save-button">Save Conversation</button> </CopilotSidebar> <div className="chat-area"> <h2>AI Chatbot</h2> <div className="chat-history"> {chatHistory.map((chat, index) => ( <div key={index} className={`message ${chat.sender === 'User' ? 'user' : 'bot'}`}> <strong>{chat.sender}:</strong> {chat.text} </div> ))} </div> <div className="input-area"> <select value={selectedPrompt} onChange={(e) => handlePromptSelect(e.target.value)} className="prompt-select" > <option value="">Select a prompt...</option> {filteredPrompts.map((prompt, index) => ( <option key={index} value={prompt}>{prompt}</option> ))} </select> {/* Button to toggle visibility of the new prompt input */} <button onClick={() => setShowPromptInput(!showPromptInput)} className="toggle-prompt-button"> {showPromptInput ? "Hide Prompt Input" : "Add New Prompt"} </button> {/* New Prompt Input Field */} {showPromptInput && ( <input type="text" value={newPrompt} onChange={(e) => setNewPrompt(e.target.value)} placeholder="Add a new prompt..." className="new-prompt-input" /> )} {/* Button to add the new prompt */} {showPromptInput && ( <button onClick={handleAddPrompt} className="add-prompt-button">Add Prompt</button> )} {/* Message Input Field */} <input type="text" value={message} onChange={(e) => setMessage(e.target.value)} placeholder="Type your message..." className="message-input" /> <button onClick={handleSendMessage} className="send-button">Send</button> </div> </div> </div> ); }; export default Chatbot;
Ganti kandungan src/App.js dengan:
import React from 'react'; import Chatbot from './Chatbot'; function App() { return ( <div className="App"> <Chatbot /> </div> ); } export default App;
.chatbot-container { display: flex; height: 100vh; } .chat-area { margin-left: 20px; flex-grow: 1; padding: 20px; background-color: #f9f9f9; border-radius: 8px; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); } .chat-history { border: 1px solid #ccc; padding: 10px; height: calc(100% - 120px); /* Adjust height based on input area */ overflow-y: scroll; border-radius: 8px; } .message { margin-bottom: 10px; } .user { text-align: right; } .bot { text-align: left; } .input-area { display: flex; align-items: center; } .prompt-select { margin-right: 10px; } .message-input { flex-grow: 1; padding: 10px; border-radius: 4px; border: 1px solid #ccc; } .send-button { padding: 10px 15px; background-color: #007bff; color: white; border: none; border-radius: 4px; cursor: pointer; } .send-button:hover { background-color: #0056b3; } .conversation-title { padding: 10px; cursor: pointer; } .conversation-title:hover { background-color: #f0f0f0; } .save-button { margin-top: 10px; padding: 5px 10px; background-color: #28a745; color: white; border: none; border-radius: 4px; cursor: pointer; } .save-button:hover { background-color: #218838; } .prompt-select, .new-prompt-input, .message-input { margin-right: 10px; } .search-input { margin-bottom: 10px; } .new-prompt-input { flex-grow: 1; /* Allow it to take remaining space */ padding: 10px; border-radius: 4px; border: 1px solid #ccc; } .add-prompt-button, .send-button, .save-button { padding: 10px 15px; background-color: #007bff; color: white; border: none; border-radius: 4px; cursor: pointer; } .add-prompt-button:hover, .send-button:hover, .save-button:hover { background-color: #0056b3; /* Darker shade for hover */ } .conversation-title { padding: 10px; cursor: pointer; } .conversation-title:hover { background-color: #f0f0f0; /* Highlight on hover */ } .toggle-prompt-button { margin-right: 10px; padding: 10px 15px; background-color: #17a2b8; /* Different color for visibility */ color: white; border: none; border-radius: 4px; cursor: pointer; } .toggle-prompt-button:hover { background-color: #138496; /* Darker shade for hover */ }
Mulakan apl React anda:
npm start
Halaman hadapan anda kini sepatutnya dijalankan pada http://localhost:3000.
Untuk memasukkan URL repositori GitHub dalam dev.untuk menyiarkan tentang membina bot sembang dengan CopilotKit, Flask dan React, anda boleh memformatkannya seperti berikut:
Dalam siaran ini, kami akan melalui langkah-langkah untuk membuat chatbot AI interaktif menggunakan CopilotKit untuk bahagian hadapan, Flask sebagai bahagian belakang dan React untuk antara muka pengguna.
Anda boleh mendapatkan kod lengkap untuk projek ini di GitHub: Chatbot dengan CopilotKit
Anda kini mempunyai chatbot AI asas yang dibina menggunakan CopilotKit untuk bahagian hadapan dan Flask untuk bahagian belakang! Anda boleh meningkatkan projek ini dengan menambahkan ciri seperti pengesahan pengguna, menyimpan sejarah sembang atau memperbaik reka bentuk UI/UX.
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