Rendering variable to ejs template? - node.js

Question

My ejs side (webpage) is updating the wrong variables every time I refresh the page,but each variable has a different name. I cannot figure out what is wrong.
My index.js is receiving messages from an esp8266 using MQTT, and then I render that to the ejs.
index.js
var topicTemp = "FromESPtoWeb/temp";
var topicMessagemoisture = "FromESPtoWeb/moisture";
var content = { doorMsg: "Door Closed" ,
windowMsg: "Window Closed",
tempMsg : "",
moistureMsg : "" ,
motionMsg: "Motion" };
client.on('connect', function () {
//Subscribe to topic "FromESPtoWeb/temp"
client.subscribe(topicTemp, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
client.on('message', function (topicTemp, temp) {
console.log(temp.toString());
content.tempMsg = temp.toString();
});
})
//Subscribe to topic "FromESPtoWeb/moisture"
client.subscribe(topicMessagemoisture, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
client.on('message', function (topicMoisture, moisture) {
console.log("new message on " + topicMoisture + " - " +
moisture.toString());
content.moistureMsg = moisture.toString();
});
})
})
/* GET home page. */
router.get('/', function(req, res) {
res.render('index', { content : content } );
});
index.ejs
<h4> <%= content.moistureMsg %> </h4>
<h4> <%= content.motionMsg %> </h4>
<h4> <%= content.windowMsg %> </h4>
<h4> <%= content.doorMsg %> </h4>
content.moistureMsg sometimes showing what is suppose to be to content.windowMsg , or content.doorMsg is showing the value that is suppose to be to content.motionMsg. A complete mess...

Answer 1

Use the request object!.
router.get('/', function(req, res) {
res.render('index', { content : req.content } );
});

Answer 2

My understanding was very wrong about client.on and subscribe. I rebuilt the whole code, and now it is working.
var topicTemp = "FromESPtoWeb/temp";
var topicDoor = "FromESPtoWeb/door";
var topicWindow = "FromESPtoWeb/window";
var topicMoisture = "FromESPtoWeb/moisture";
var topicMotion = "FromESPtoWeb/motion";
var content = { doorMsg: "Door Closed" , windowMsg: "Window Closed", tempMsg:"", moistureMsg:"", motionMsg: ""};
client.on('connect', function () {
client.on('message', function (topic, message) {
if(topic === topicTemp) {
temp(message);
}
if(topic === topicDoor) {
door(message);
}
if(topic === topicWindow) {
window(message);
}
if(topic === topicMoisture) {
moisture(message);
}
if(topic === topicMotion) {
motion(message);
}
});
client.subscribe(topicTemp, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
});
client.subscribe(topicDoor, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
});
client.subscribe(topicWindow, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
});
client.subscribe(topicMoisture, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
});
client.subscribe(topicMotion, function (err) {
if (err) {
alert("something went wrong on subscribe to message");
}
});
});
var temp = (message) => {
console.log(message.toString());
content.tempMsg = message.toString();
}
var door = (message) => {
if (message == "Door Open") {
console.log("Door open");
content.doorMsg = message;
}else if (message == "Door Closed") {
console.log("Door closed");
content.doorMsg = message;
}
}
var window = (message) => {
if (message == "Window Open") {
console.log("window open");
content.windowMsg = message;
}else if (message == "Window Closed") {
console.log("window closed");
content.windowMsg = message;
}
}
var moisture = (message) => {
console.log(message.toString());
content.moistureMsg = message.toString();
}
var motion = (message) => {
console.log(message.toString());
content.motionMsg = message.toString();
}
/* GET home page. */
router.get('/', function(req, res) {
res.render('index', { content : content } );
});