Azure functions Chatwork to Slack

chatwork_to_slack.js

var request = require('request');
var Slack = require('slack-node');

module.exports = function (context, myTimer) {
    var timeStamp = new Date().toISOString();
    
    if(myTimer.isPastDue)
    {
        context.log('JavaScript is running late!');
    }
    context.log('JavaScript timer trigger function ran!', timeStamp);   

    var chatid = process.env['CW_CHATID'];
    var options = {
        method: 'GET',
        uri: 'https://api.chatwork.com/v1/rooms/' + chatid + '/messages',
        timeout: 30 * 1000,
        headers: {
            'X-ChatWorkToken': process.env['CW_TOKEN']
        },

    };

    request(options, function(error, response) {
            context.log("inside request callback");
            if (response.statusCode == 204) {
                context.done(); 
                return;
            }

            if (error || response.statusCode != 200) {
                context.log('error: ' + error);
                context.done(); 
                return;

            }
            
            slack = new Slack();
            slack.setWebhook(process.env['SLACK_WEBHOOK_URI']);

            messages = JSON.parse(response.body);
            messages.forEach(function(message) {
                text = '*' + message.account.name + '*  sent message by Chatwork.\n' + message.body + '\n';
                text = text + '<https://www.chatwork.com/#!rid' + chatid + '-' + message.message_id + '| Link to ChatWork>';
                slack.webhook({
                    channel: process.env['SLACK_CHANNEL'],
                    username: "Chatwork Bot",
                    text: text
                }, function(err, response) {
                    context.log(response);
                });
            });
            context.done(); 
        });
};