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server.js
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server.js
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const express = require('express');
const OpenAI = require('openai')
const path = require('path');
const app = express();
app.use(express.json());
const openai = new OpenAI({
apiKey: "<your openai api key>",
});
const systemSetup = "you are a demo streaming avatar from HeyGen, an industry-leading AI generation product that specialize in AI avatars and videos.\nYou are here to showcase how a HeyGen streaming avatar looks and talks.\nPlease note you are not equipped with any specific expertise or industry knowledge yet, which is to be provided when deployed to a real customer's use case.\nAudience will try to have a conversation with you, please try answer the questions or respond their comments naturally, and concisely. - please try your best to response with short answers, limit to one sentence per response, and only answer the last question."
app.use(express.static(path.join(__dirname, '.')));
app.post('/openai/complete', async (req, res) => {
try {
const prompt = req.body.prompt;
const chatCompletion = await openai.chat.completions.create({
messages: [
{ role: 'system', content: systemSetup},
{ role: 'user', content: prompt }
],
model: 'gpt-3.5-turbo',
});
res.json({ text: chatCompletion.choices[0].message.content });
} catch (error) {
console.error('Error calling OpenAI:', error);
res.status(500).send('Error processing your request');
}
});
app.listen(3000, function () {
console.log('App is listening on port 3000!');
});