To use GPT-4 in your Facebook Messenger Bot using Node.js, you will first need to sign up for OpenAI's API and obtain an API key. Once you have your API key, you can use the following code as a starting point:
JavaScript:
const openai = require('openai');
const messenger = require('messenger-bot');
const bot = new messenger({
token: 'YOUR_PAGE_ACCESS_TOKEN_HERE',
verify: 'YOUR_VERIFY_TOKEN_HERE',
app_secret: 'YOUR_APP_SECRET_HERE'
});
const gpt4 = new openai('YOUR_OPENAI_API_KEY_HERE');
bot.on('message', (payload, reply) => {
const message = payload.message.text;
// Generate response using GPT-4
gpt4.completions.create({
engine: 'text-davinci-002',
prompt: message,
max_tokens: 64,
n: 1,
stop: ['\n']
}).then(response => {
const text = response.choices[0].text;
// Send response back to user
reply({ text });
}).catch(err => {
console.error(err);
reply({ text: 'Sorry, there was an error generating a response.' });
});
});
bot.on('error', (err) => {
console.error(err.message);
});
bot.start((err) => {
if (err) {
console.error(err);
} else {
console.log('Bot started listening on port 3000.');
}
});
This code initializes a Facebook Messenger Bot using the messenger-bot library and listens for incoming messages. When a message is received, it passes the message text to GPT-4 to generate a response. The response is then sent back to the user via Facebook Messenger.
Note that this code is just a starting point and will need to be customized to fit your specific use case. Also, keep in mind that GPT-4 is not yet publicly available and its features and capabilities are subject to change.