generic graphql rest resolver

import pRequest from 'util/promiseRequest'

Object.resolve = function(path, obj) {
  return path.split('.').reduce(function(prev, curr) {
    return prev ? prev[curr] : undefined
  }, obj)
}

export class RESTConnector {
  constructor({ rootUrl, keyPath }) {
    this.rootUrl = rootUrl
    this.keyPath = keyPath
  }

  async get(path) {
    const options = {
      method: 'GET',
      url: this.rootUrl + path,
      headers: {
        'content-type': 'application/json',
        accept: 'application/json'
      },
      json: true
    }
    const result = await pRequest(options)

    return Object.resolve(this.keyPath, result) || []
  }
}