index.js

import { Configuration, OpenAIApi } from "openai";
import express from "express";
import bodyParser from "body-parser";
import cors from "cors";

const configuration = new Configuration({
    organization: "org-XtLiiEb35e2I4eaBDzcfchxq",
    apiKey: "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",
});

const openai = new OpenAIApi(configuration);

const app = express();
const port = 3000;

app.use(bodyParser.json());
app.use(cors());

app.post("/", async (req, res) => {

    const { messages } = req.body;
    
    console.log(messages)
    const completion = await openai.createChatCompletion({
        model: "gpt-3.5-turbo",
        messages: [
            {"role": "system", "content": "You are a counselor acting as a good friend of user."},
            ...messages
            //{role: "user", content: `${message}`},
        ]
    })

    res.json({
        completion: completion.data.choices[0].message
    })

});

app.listen(port, () => {
    console.log(`Example app listening at http://localhost:${port}`);
});