server

app.get('/api', async (req, res, next) => {
    const options = {
        headers: { 'Authorization': config.API.access_token }
    };

    let response = await fetch(config.API.url, options);
    let historianData = await response.json();
    console.log(historianData);     // deactivate when client is ready
    res.send(historianData);        // activate when client is ready
    next();
});