arca-merchant.js

/**
 * ARCA API BaseController.
 */

import rp from 'request-promise';
import qs from 'qs';


export default class BaseController {
  /**
   * @param {Object} config - API configs.
   * @param {String} config.mainUrl - API main url.
   * @param {String} config.userName - API main username.
   * @param {String} config.password - API main password.
   */
  constructor(config) {
    this.mainUrl = config.mainUrl;
    this.userName = config.userName;
    this.password = config.password;
  }

  /**
   * Building url for API call.
   *
   * @param {String} url - API Main Url.
   * @param {String} action - API action.
   * @param {Object} params - Params.
   *
   * @returns {String} - Returns constructed url.
   */
  buildUrl(url, action, params) {
    return  `${url}/${action}.do?${qs.stringify(params)}`;
  }

  /**
   * Request To ARCA API.
   *
   * @param {String} action - Action Name.
   * @param {Object} body - Request Body.
   * @param {String} method - Request Method.
   * @returns {Promise<*>} - Returns API Response.
   */
  async request(action, body, method = 'GET') {
    try {
      body = {
        userName: this.userName,
        password: this.password,
        ...body
      };
      
      // Get request url for ARCA API call.
      const uri = this.buildUrl(this.mainUrl, action, body);

      //Calling hook BEFORE_REQUEST
      this.beforeRequest(action, method, body);
      
      // Combining all in the request.
      let response = await rp({
        uri,
        method
      });

      response = JSON.parse(response);

      // Checking for every possible error -_- GOD DAMN ARCA
      if (
        (response.errorCode && response.errorCode !== '0') ||
        (response.ErrorCode && response.ErrorCode !== '0')
      ) {
        return new Error(response);
      }
      
      //Calling hook AFTER_REQUEST
      this.afterRequest(response);
      
      return {
        ...response
      };
    } catch (e) {
      throw e;
    }


  }

  /**
   * Event triggered before API call.
   */
  beforeRequest() {}

  /**
   * Event triggered after API call.
   */
  afterRequest() {}
}