Calling function depending on updated fields - node.js

Question

I want to call different functions depending on the updated model fields.
My code looks like:
update(req, res){
return LED
.findById(req.params.LEDId)
.then(LED => {
if (!LED) {
return res.status(400).send({
message: 'LED Not Found',
});
}
return LED
.update(req.body, {fields: Object.keys(req.body)})
.then(() => res.status(200).send(LED))
.catch((error) => res.status(400).send(error));
})
.catch((error) => res.status(400).send(error));
},
So my plan was to integrate some if-clauses to get the changed value and call some functions depending on the changes.
If-Clauses:
if(req.body.status || LED.status){
BLE.changeStatus(req.body.device_ID,req.body.status);
}else if(req.body.prog || LED.prog){
BLE.changeProg(req.body.device_ID,req.body.prog);
}else if(req.body.white || LED.white){
BLE.changeWhite(req.body.device_ID,req.body.white);
}else if(req.body.color || LED.color){
BLE.changeColor(req.body.device_ID,req.body.color);
}else if(req.body.brightness || LED.brightness){
BLE.changeBrightness(req.body.device_ID,req.body.brightness);
}
Where do I need to integrate these if-clauses that the functions can be called?
I've tried to integrate it in a .then() before I send the field updates to DB but I get the following error while trying to start the server:
SyntaxError: Unexpected token if
at createScript (vm.js:53:10)
at Object.runInThisContext (vm.js:95:10)
at Module._compile (module.js:543:28)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at Object.<anonymous> (/home/pi/projekt/server/controllers/index.js:1:75)
[nodemon] app crashed - waiting for file changes before starting...
EDIT
I'm a bit further now..
I've wrote the update function like:
update(req, res){
return LED
.findById(req.params.LEDId)
.then(LED => {
if (!LED) {
return res.status(404).send({
message: 'LED Not Found',
});
}
if(req.body.status){
changeStatus(req.params.LEDId,req.body.status);
console.log('STATUS CHANGED');
} if(req.body.prog){
changeProg(req.params.LEDId,req.body.prog);
console.log('PROG CHANGED');
} if(req.body.white){
changeWhite(req.params.LEDId,req.body.white);
console.log('WHITE CHANGED');
} if(req.body.color){
changeColor(req.params.LEDId,req.body.color);
console.log('COLOR CHANGED');
} if(req.body.brightness){
console.log('BEFORE BRIGHNTESS CHANGED')
changeBrightness(req.params.LEDId,req.body.brightness)
console.log('BRIGHNTESS CHANGED')
}
return LED
.update(req.body, {fields: Object.keys(req.body)})
.then(() => res.status(200).send(LED))
.catch((error) => res.status(400).send(error));
})
.catch((error) => res.status(400).send(error));
},
I've tested it and it jumps to the changeBrightness function. There I want to work with noble. Code looks like this:
changeBrightness(LEDId,updateBrightness){
console.log('BEGINN CHANGEBRIGHTNESS FUNCTION')
var uuid = "4711";
var brightness = updateBrightness;
console.log('BRIGHTNESS', brightness)
console.log('UUID', uuid)
console.log('AFTER CHANGEBRIGHTNESS VAR')
// Connect to client, find Service, find Characteristic and write status
noble.connect(uuid, function(error){
noble.discoverServices([lightningServiceUuid], function(error, service){
var tempLightningService = service[0];
writeFile("SUCCESS -- Discovered Service on UUID");
tempLightningService.discoverCharacteristics([brightnessCharacteristic], function(error, characteristics){
var tempBrightnessCharacteristic = characteristics[0];
writeFile("SUCCESS -- Discovered Characterisitc on UUID");
console.log('IN THE MIDDLE OF CHANGEBRIGHTNESS FUNCTION')
tempBrightnessCharacteristic.write(new Buffer(brightness), true, function(error){
writeFile("SUCCESS -- Wrote brightness characteristic");
});
});
});
});
//Disconnect from client
noble.disconnect(function(error){
writeFile("SUCCESS -- Disconnected from Client");
});
console.log('END CHANGEBRIGHTNESS FUNCTION')
}
I'm currently working with a fake uuid for testing purposes.. So my output looks like this when I start the server and execute a update request:
[nodemon] restarting due to changes...
[nodemon] starting `node ./bin/www`
Executing (default): SELECT "id", "device_id", "name", "group", "status", "device_type", "prog", "white", "color", "brightness", "createdAt", "updatedAt" FROM "LEDs" AS "LED" WHERE "LED"."id" = '1';
BEFORE BRIGHNTESS CHANGED
BEGINN CHANGEBRIGHTNESS FUNCTION
BRIGHTNESS 5
UUID 4711
AFTER CHANGEBRIGHTNESS VAR
PUT /api/led/1 400 357.728 ms - 2
Why does it stop before the noble function? What do I need to change?