Node Mongoose Util

A nodejs and mongoose utility library,it consists of various utilities to assist in mongoose-nodejs application.

Installing

npm i --save node-mongoose-util

Usage

Sample example

const nodeMongooseUtil = require('node-mongoose-util');
const User = mongoose.model('User');

/**
 * Handle Http GET on /users
 */
router.get('/users', (request, response, next) => {
    const { query, fields, page, limit } = nodeMongooseUtil.parseQuery(request.query);
    User.find(query)
});

API

nodeMongooseUtil.parseQuery(params) => Object

It takes in query params from user and parse it to make them mongo friendly. It has the following characteristics;

• Pagination support
  It will not include page and limit fields in the result query if supplied.
• Not equal clause
  If the query param field value preceded by neq|, it will output $ne operator query clause.
• Include query clause
  It can create $in query clause for field contain comma seaprated values and included in params.$in key.

params

• params.query[required] - Object
  Required. Specifies the query object to be parsed

• params.$in - String[] Array of field names which can be transformed to $in query clause if they have comma separated values

Return

Object with the following properties

• query - object
  Mongoose friendly criteria object
• fields - string
  Space separated field names to select
• sort - string
  Space separated field names to use for sorting
• page - number
  Page number used with pagination
• limit - number
  Result limit used with pagination