findone by id mongoose code example

Example 1: find one with specofoc id mongoose

YOUR_MODEL_NAME.findOne({_id: reqParameterID}, function(err, result) {
    if (err) {
      console.log(err);
    } else {
      // Do Something 
    }
  });

Example 2: callback mongoose get value from document

var query = Model.find({});

query.where('field', 5);
query.limit(5);
query.skip(100);

query.exec(function (err, docs) {
  // called when the `query.complete` or `query.error` are called
  // internally
});