mongoose find one by id 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: findbyid mongoose

// Find the adventure with the given `id`, or `null` if not found
await Adventure.findById(id).exec();

// using callback
Adventure.findById(id, function (err, adventure) {});

// select only the adventures name and length
await Adventure.findById(id, 'name length').exec();

Example 3: mongoose select

// include a and b, exclude other fields
query.select('a b');
// Equivalent syntaxes:
query.select(['a', 'b']);
query.select({ a: 1, b: 1 });

// exclude c and d, include other fields
query.select('-c -d');

// Use `+` to override schema-level `select: false` without making the
// projection inclusive.
const schema = new Schema({
  foo: { type: String, select: false },
  bar: String
});
// ...
query.select('+foo'); // Override foo's `select: false` without excluding `bar`

// or you may use object notation, useful when
// you have keys already prefixed with a "-"
query.select({ a: 1, b: 1 });
query.select({ c: 0, d: 0 });

Example 4: 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
});