bla.js

'use strict'
const _ = require('lodash')
const Promise = require('bluebird')

module.exports = function loadAllPages (callFx, opts) {
  opts['page'] = opts.page || 1
  const res = []
  
  return Promise
    .resolve(callFx(opts))
    .then((result) => {
      if (result  && result.length > 0) {
        res.concat(result)
        
        if (_.isFunction(result.nextPage)) {
          opts.page = opts.page + 1
          return loadAllPages(callFx, opts)
        }
      }
      return res
    })
    .catch((err) => {
      if (err) {
        console.log('Failed to depaginate!\n', err)
        console.log('Options:', opts)
        console.trace()
      }
    })
}