How to make the setTimeout sequential for multiple database updates? - node.js

Question

I am updating database fields by using setTimeout(). So when the updates are multiple what happens is the the last primary key is used for all the updates. How do I run the setTimeout() function sequentially. Below is the portion of code which does that.
for( var i = 0; i < req.body.devicelist.length; i++) { //running for loop for multiple elements
var data = JSONPARSE.toObject(req.body);
mac_id = req.body.devicelist[i];
data.mac_id = mac_id;
var gateway_config;
for (let j = 0; j < gateways_config.length; j++) { //code for fetching specific element. IGNORE
if(gateways_config[j].latest_config.mac_id == mac_id){
gateway_config = gateways_config[j]
break;
}
gateway_config = undefined
}
await syncConfig(req.body,gateway_config, req.decoded.id);
..........
..........
}
syncConfig(body,gateway,user_id){
var jsonObj = body;
...
...
...
config_timeout_array[jsonObj.mac_id] = setTimeout(() => { //Causing problem
commandTimeout(jsonObj.org_id,jsonObj.mac_id)
}, 10000);
...
...
}
commandTimeout:(org_id, mac_id) =>{
console.log(mac_id); //prints same mac_id (the last in the array)
return gateway_model.findOneAndUpdate({ org_id: org_id, mac_id: mac_id }, { 'sync_sent': false }, {"new": true})
.then((updated_gateway) => {
...
...
...
}
}

Answer 1

config_timeout_array[jsonObj.mac_id] = setTimeout(() => { //Causing problem
commandTimeout(jsonObj.org_id,jsonObj.mac_id)
}, 10000);
Instead of doing the above logic directly, call a function and do it there. I don't know why but it worked!
seqTimeout(jsonObj.org_id,jsonObj.mac_id); //function call
seqTimeout(org_id,mac_id){
config_timeout_array[mac_id] = setTimeout(() => {
GatewayController.commandTimeout(org_id, mac_id);
}, COMMAND_TIMEOUT);
}