Calling an asynchronous function without callback is deprecated.

[QWER]

Hi.

 

I have little problem with my code. It says "DeprecationWarning: Calling an asynchronous function without callback is deprecated."

function SteamBot(name, autodecline) {
  var self = this;

  // all data
  this.accountData = data;

  console.log(data.steamid);
  this.steamid = data.steamid;
  this.login = data.name;
  this.password = data.password;
  this.shared = data.shared_secret;
  this.identity = data.identity_secret;

  this.autodecline = (typeof autodecline == 'undefined' ? true : autodecline);
  console.log(this.autodecline);

  this.cachedir = "private/bot/";
  this.pollPath = this.cachedir + 'polldata.json';
  
  this.loggedIn       = false;
  this.gotApiKey = false;
  this.error = false;

  this.inventory = [];

  this.client = new SteamUser();
  this.community = new SteamCommunity();
  this.client.setOption('promptSteamGuardCode', false);

  var managerConfig = {
    steam             : this.client,
    community         : this.community,
    domain            : "localhost",
    language          : "en",
//  pollInterval      : 3000,
//  cancelTime        : 600000,
//  pendingCancelTime : 30000
  };

  this.client.on('loggedOn', () => {
    this.loggedIn = true;
    this.client.setPersona(SteamUser.EPersonaState.Online)
  })

  this.manager = new TradeOfferManager(managerConfig);
  
  if (fs.existsSync(this.cachedir + 'polldata.json')) {
    this.manager.pollData = JSON.parse(fs.readFileSync(this.cachedir + 'polldata.json'));
  }
  
  this.manager.on('pollData', function(pollData) {
    console.log("pollData > " + self.cachedir);
    fs.writeFile(self.cachedir + 'polldata.json', JSON.stringify(pollData));
  });

  this.manager.on('newOffer', function(offer) {
    console.log("newOffer"); 
    offer.decline(function(err) {
      if (err) {
        console.log("[SteamBotsHandler] BOT " + self.name + " unable to decline offer: " + err.message);
      }
    });
  });

}

Here is log...

newOffer
newOffer
pollData > private/bots_cache/csgocloudbot2/
(node:24579) DeprecationWarning: Calling an asynchronous function without callback is deprecated.
pollData > private/bots_cache/csgocloudbot2/
(node:24579) DeprecationWarning: Calling an asynchronous function without callback is deprecated.

I have latest version of tradeoffer manager. What to do?

 

Cheers

[Dr. McKay]

As of node 7, you aren't supposed to call fs.writeFile without providing a callback. It doesn't have to do anything, it just has to exist.

[QWER]

Thanks