title: How do you change the _id from ObjectID to Number in Mongoose
body: <p>I am trying to use mongoose js program to do the inserts, however I want to use 1,2,3,4 etc as the ids NOT to use the BSON ObjectID automatically created for me.</p>
  
  <pre><code>var mongoose = require('mongoose');
  
  var dbHost = 'mongodb://localhost:27017/mong_db';
  
  //var newID = mongoose.model('bookSchema', { _id: Number, name: String });
  
   mongoose.connect(dbHost);
  
   //Create a schema for Book
  
    var bookSchema = mongoose.Schema({
  
    _ id: Number, 
  
    name: String,
  
    //Also creating index on field isbn
  
    isbn: {type: String, index: true},
  
    author: String,
  
     pages: Number
  
    });
  
  &gt;Updated 
  
  
  var book1 = new Book({
  
   _id = 1
  name:"Mongoose Demo 1",
  
  isbn: "MNG123",
  
  author: "Author1,  Author2",
  
  pages: 123
  
  });
  </code></pre>