tunnckoCore/randomorg-js

/*!
 * randomorg-js <https://github.com/tunnckoCore/randomorg-js>
 *
 * Copyright (c) Charlike Mike Reagent <@tunnckoCore> (https://i.am.charlike.online)
 * Released under the MIT license.
 */

'use strict'

// we use `simple-get` package and its `.concat` method in nodejs
// and distribute a bundle including `xhr` package, not the `simple-get`
import req from 'xhr'

const names = [
  'generateIntegers',
  'generateDecimalFractions',
  'generateGaussians',
  'generateStrings',
  'generateUUIDs',
  'generateBlobs',
  'getUsage',
  'generateSignedIntegers',
  'generateSignedDecimalFractions',
  'generateSignedGaussians',
  'generateSignedStrings',
  'generateSignedUUIDs',
  'generateSignedBlobs',
  'verifySignature'
]

function RandomOrg (id) {
  const request = (identifier) => (method, params, callback) => {
    /* istanbul ignore next */
    const postRequest = req.concat ? req.concat : req
    const _id = identifier || id || (0 | Math.random() * 1000)

    postRequest({
      url: 'https://api.random.org/json-rpc/1/invoke',
      json: true,
      method: 'POST',
      body: {
        jsonrpc: '2.0',
        method: method,
        params: params,
        id: _id
      }
    }, (err, resp, body) => {
      /* istanbul ignore next */
      if (err) return callback(err)
      callback(null, body)
    })
  }

  const methods = {}
  names.forEach((method) => {
    methods[method] = (identifier, params, callback) => {
      if (identifier && typeof identifier === 'object') {
        callback = params
        params = identifier
        identifier = false
      }
      request(identifier)(method, params, callback)
    }
  })

  methods.request = request(id)
  methods.RandomOrg = RandomOrg
  return methods
}

export default RandomOrg()