Hapi Query String qs

The purpose of this plugin is to parse the query parameters into a object that is accessible via request.queryqs.

the objetive is to allow 'brackets' '[]' in the querystring and permit hapi too support the kind of query string parsed by the qs package: Examples:

// GET /search?q=tobi+ferret console.dir(req.query.q) // => 'tobi ferret'

// GET /shoes?order=desc&shoe[color]=blue&shoe[type]=converse console.dir(req.query.order) // => 'desc'

console.dir(req.query.shoe.color) // => 'blue'

console.dir(req.query.shoe.type) // => 'converse'

// GET /shoes?color[]=blue&color[]=black&color[]=red console.dir(req.query.color) // => ['blue', 'black', 'red']

HOW TO USE THE PLUGIN?

To use it you just have to register it. After registering it you will have a new object in the request and whenever you need to use the parameters received after the query mark of the url ('?') they will be available getting the query.qs value

Ex: route handler: function (request, reply) { ...

const parsed_parameters = request.query.qs

}

Registering the Plugin

var Hapi = require('@hapi/hapi');
var server = new Hapi.Server();

server.register([
  {
    register: require('hapi-query-qs'),
    options: {
      ignoredKeys: ['count', 'offset'], // Array of query parameters not to convert to filter object
      defaultEnabled: true // if true plugin will be used on all routes
    }
  }
], function (err) {
  // An error will be available here if anything goes wrong
});

Ignoring Keys

You can ignore keys to have them stay at the root level of request.query. A configuration of:

var Hapi = require('@hapi/hapi');
var server = new Hapi.Server();

server.register([
  {
    register: require('hapi-query-qs'),
    options: {
      ignoredKeys: ['count', 'offset'], // Array of query parameters not to convert to filter object
      defaultEnabled: true // if true plugin will be used on all routes
    }
  }
], function (err) {
  // An error will be available here if anything goes wrong
});

Will cause a request like /shoes?order=desc&shoe[color]=blue&shoe[type]=converse to create a request.query.qs that looks like:

{
  order: 'desc',
  
  shoe: {
    color: 'blue',
    type: 'converse'
  }
}

Enabling at the Route Level

If defaultEnabled: false you will need to enable the plugin an a per-route basis by doing the following:

var Hapi = require('@hapi/hapi');
var server = new Hapi.Server();

server.register([
  {
    register: require('hapi-query-qs')
  }
], function (err) {
  // An error will be available here if anything goes wrong
});

server.route({
  method: 'GET',
  path: '/test',
  handler: function (request, reply) { ... },
  options: {
      plugins: {
      hapi-query-qs: {
        enabled: true,
        ignoredKey: ['count', 'offset'], // Array will be concatenated with the ignoredKeys set at register
        params: ['test_param'] // Array of request.params that will be put into filter object
      }
    }
  }
})