const options = {
    hostname: 'baseurl.com',
    path: '/accounts',
    method: 'GET',
    ca: fs.readFileSync(`${path}CA.pem`),
    cert: fs.readFileSync(`${path}CERT.pem`),
    key: fs.readFileSync(`${path}KEY.pem`),
    auth: 'user:password',
    rejectUnauthorized: false
};
const req = https.request(options, (res) => {
    res.on('data', (data) => {
        process.stdout.write(data);
    });
});
req.end();
req.on('error', (e) => {
    console.error(e);
});

const instance = axios.create({
    baseURL: 'https://baseurl.com',
    httpsAgent: new https.Agent({
        ca: fs.readFileSync(`${path}CA.pem`),
        cert: fs.readFileSync(`${path}CERT.pem`),
        key: fs.readFileSync(`${path}KEY.pem`),
        auth: 'user:password',
        rejectUnauthorized: false
    })
});

instance.get('/accounts')
  .then(_ => console.log(`response: ${_}`))
  .catch(err => console.log(`error: ${err.stack}`));