dt-server

dt-server - A wrapper around a datatable server side processing

Installation

npm install dt-server

Dependencies

None

Example Usage (Express)

There are four main objects in this project.

DtRequest

• Wraps the raw query from a datatable with added helper functionality

DtResponse

• Wraps an adapter - a SQLite adapter is provided - and generates a valid response

DtServer

• Handles creation of the above objects and returns the response

Adapter

• A class that implements the interface seen below in the DtSql3 Object

var DtServer = require('dt-server')
var db       = require('MockSql3DB').Database
 
router.get('/dtsql3', function(req, res, next) {  
 
  var dtServer = DtServer('sql3', db, {
    response: {
      format: 'object-array'
    }
  })
 
  dtServer.get(req.query,'USERS')
  .then(function(results) {
    res.status(200).json(results)
  })
  .catch(function(err) {
    res.status(400).json(err)
  })
})

API

• DtServer([adapter], [options])

  • [adapter] Adapter for a database I.E. DtSql3 wraps the SQLite database
  • [options] Custom options

• DtServer.get([request], [model], (optional)[params])

  • [request] Datatable JSON request object
  • [model] Model to get from the database
  • [params] Optional database parameters
  • returns {Promise}

• DtSql3([Database])

  • [Database] Database object`

• DtSql3.get([dtRequest], [model], (optional)[params])

  • [dtRequest] DtRequest object`
  • [model] Model to get from the database`
  • [params] Optional database parameters`
  • returns{Promise}`

Extending

Implementing the interface seen in DtSql3 will allow you to pass that adapter as you would the DtSql3 object

Available Options

Defaults

{
  request: {
    excludeRegex: 'true' //'true'|'false'
    filter: function(str, regex) {
      return str
    },
    validate: 'true' //'true'|'false'
  },
 
  response: {
    format: 'object-array', //object-array, value-array,
    formatData: undefined, //Array function(data, format) { }
    validate: 'false', 'true'|'false'
  }
}

Pass an object with one, or more of these options to override the defaults

• request.exlcudeRegex removes search columns using regex

• request.filter A function that augments incoming search strings

• request.validate Flag to validate the datatable JSON request object

• response.format Format of the response data from an adapter

• Example Formats

  • object-array => [{name: 'a', address: 'b'}, ...]
  • value-array => [['a', 'b'], ...]

• request.formatData Custom data formatting function used in-place of the default format function

• request.validate Flag to validate JSON response object

License

MIT