ih-black-lion/lib/connectors/NewsConnector.js

State handler for Arus projects

import Connector from './Connector';
import { Fault } from '../models';
import Request from '../Request';
import { toCamelCase, interceptFault } from './utils';

const URLS = {
  tryURL: __PAGELET_BUILDER_URL__,
  catchURL: process.env.PAGELET_BUILDER_URL,
};

export default class NewsConnector extends Connector {
  constructor(requestMethod, requestParams, Model, pageletName,
    extraParam = undefined) {
    super(requestMethod, requestParams, Model, URLS, extraParam);
    this.pageletName = pageletName;
    this.params.url += this.pageletName;
  }

  checkTypes() {
    super.checkTypes();
    if (typeof this.pageletName !== 'string') {
      return Promise.reject(new TypeError(`Type of pageletName is ${typeof this.pageletName}. Expected a string\n\tpageletName = ${this.pageletName}`));
    }
    return true;
  }

  get Promise() {
    this.checkTypes(); // Checking the types here to simplify the usage of the Connectors.
    return new Promise((resolve, reject) => {
      Request.get(this.params)
        .then((res) => {
          const jRes = res.data;
          // should be an error
          if (typeof jRes === 'string') {
            const re = /(\{"body[\s\S]*\})/;
            reject(new Fault(re.exec(jRes)[0]));
          }

          const fault = interceptFault(jRes);
          if (fault) {
            reject(new Fault(jRes));
          } else {
            const news = new this.Model(jRes);
            resolve(news);
          }
        }).catch(reject);
    });
  }
}