LINE Bot - TP Webhook - GetToken

let promise_token = new Promise(resolve => {
    var options = {
        method: 'POST',
        uri: 'https://trackwebhook.thailandpost.co.th/post/api/v1/authenticate/token',
        strictSSL: false,
        headers: {
            'Content-Type': 'application/json',
            'Authorization': 'Token ' + config.thaipost.token
        }
    };

    request(options, function(error, response, body) {
        resolve(JSON.parse(body));
    });
});

let access_token = await promise_token;