source now in separate modules;

Implemented MQTT coms.
Using Tasmota for ESP8266;
IR working reliably

src/db/devicemessages.js

@@ -0,0 +1,56 @@
+//devicemessages
+var mysql      = require('mysql');
+var con = mysql.createConnection({
+  host     : 'localhost',
+  user     : 'iot',
+  password : '!iot_popovi',
+  database : 'iot'
+});
+
+const got = require('got');
+
+exports.findByName = function(fieldName, cb) {
+  process.nextTick(function() {
+    con.query("SELECT * FROM devicemessages WHERE field_name=? OR ? IS NULL", 
+      [fieldName, fieldName], (err, data) => {
+      if (!err) {
+          cb(null, data);
+      } else {
+          cb(new Error('SQL Error: ' + err));
+      }
+      });
+  });
+}
+
+exports.insert = function(device_id, field_name, value, cb){
+    var params = [device_id, field_name,value];
+    let sql = `INSERT INTO devicemessages(device_id,field_name,field_value,timestamp)
+    VALUES (?,?,?,NOW());`;
+    con.query(sql,params,(err, r) => {
+      //if(!cb) {return;}
+      if (err) {
+        console.log("error: ", err);
+        cb && cb(new Error('SQL Error: ' + err));
+      }else{
+        console.log("inserted record: ", { id:  r.insertId});
+        cb && cb(null, { id: r.insertId, ...params });
+      }
+    });
+}
+exports.getFromDht = function(url, cb)
+{ 
+    (async () => {
+    try {
+        const dht = await got('http://192.168.1.126/json')
+        var j = JSON.parse(body);
+        if(j.dht && j.dht.hum <= 100 && j.dht.hum >= 0){
+          exports.insert(0, "A23_DHT", dht.body, cb);
+        }else {
+          console.log("Skip! Got invalid data from DHT: " + dht);
+        }
+      } catch (ex) {
+        console.log("DHT exception:" + ex);
+        cb && cb(new Error('SQL Error: ' + ex));
+      }
+    })();
+}