get data from mongodb node js using mongoose

1// find all athletes that play tennis
2var query = Athlete.find({ 'sport': 'Tennis' });
3
4// selecting the 'name' and 'age' fields
5query.select('name age');
6
7// limit our results to 5 items
8query.limit(5);
9
10// sort by age
11query.sort({ age: -1 });
12
13// execute the query at a later time
14query.exec(function (err, athletes) {
15  if (err) return handleError(err);
16  // athletes contains an ordered list of 5 athletes who play Tennis
17})

1var schema = new Schema(
2{
3  name: String,
4  binary: Buffer,
5  living: Boolean,
6  updated: { type: Date, default: Date.now() },
7  age: { type: Number, min: 18, max: 65, required: true },
8  mixed: Schema.Types.Mixed,
9  _someId: Schema.Types.ObjectId,
10  array: [],
11  ofString: [String], // You can also have an array of each of the other types too.
12  nested: { stuff: { type: String, lowercase: true, trim: true } }
13})

1//Require Mongoose
2var mongoose = require('mongoose');
3
4//Define a schema
5var Schema = mongoose.Schema;
6
7var SomeModelSchema = new Schema({
8  a_string: String,
9  a_date: Date
10});
11

1Athlete.
2  find().
3  where('sport').equals('Tennis').
4  where('age').gt(17).lt(50).  //Additional where query
5  limit(5).
6  sort({ age: -1 }).
7  select('name age').
8  exec(callback); // where callback is the name of our callback function.

1// Define schema
2var Schema = mongoose.Schema;
3
4var SomeModelSchema = new Schema({
5  a_string: String,
6  a_date: Date
7});
8
9// Compile model from schema
10var SomeModel = mongoose.model('SomeModel', SomeModelSchema );