TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension “.jpg”

I am trying to create an api in my server.js file for a react app. I connected the server and as soon as I imported data.js and set it to the api/products page it gave me the error.

    import express from 'express';
    import data from '../src/data.js';

    const app = express();

    app.get('/api/products', (req, res) => {
        res.send(data.products);
});

app.get('/', (req, res) => {
    res.send('Server is ready');
});

app.listen(5000, () => {
    console.log('Serve at http://localhost:5000');
});