var connector = new builder.ChatConnector({
  appId: client.id,
  appPassword: client.password,
  });

  var bot = new builder.UniversalBot(connector);

  app.post(`/proactiveTest`, (req, res, next) => {
if (!req.query.addressId ||!req.query.userId || !req.query.convId || !req.query.botId){
  res.send("Missing params")
}

let channelId = 'webchat';
let id = req.query.addressId;
var user = {id : req.query.userId, name : req.query.userName};
let conversation = {id : req.query.convId};
let botDetails = {id : req.query.botId , name : req.query.botName};
let serviceUrl = "https://directline.botframework.com/";
let address = {id, channelId, user, conversation, botDetails, serviceUrl};

var msg = new builder.Message().address(address);
msg.text("This is a test");
msg.textLocale('en-US');
bot.send(msg);

res.send("Message sent");
 });