fix: require to import

src/easypost.js

@@ -1,5 +1,6 @@
 import os from 'os';
 import superagent from 'superagent';
+import util from 'util';
 import { v4 as uuid } from 'uuid';
 
 import pkg from '../package.json';
@@ -36,8 +37,6 @@ import UserService from './services/user_service';
 import WebhookService from './services/webhook_service';
 import Utils from './utils/util';
 
-const util = require('util');
-
 /**
  * How many milliseconds in a second.
  * @type {number}

src/services/api_key_service.js

@@ -1,8 +1,8 @@
-import baseService from './base_service';
+import util from 'util';
+
 import Constants from '../constants';
 import FilteringError from '../errors/general/filtering_error';
-
-const util = require('util');
+import baseService from './base_service';
 
 export default (easypostClient) =>
   /**

src/services/carrier_account_service.js

@@ -1,8 +1,8 @@
-import baseService from './base_service';
+import util from 'util';
+
 import Constants from '../constants';
 import InvalidParameterError from '../errors/general/invalid_parameter_error';
-
-const util = require('util');
+import baseService from './base_service';
 
 export default (easypostClient) =>
   /**

src/services/referral_customer_service.js

@@ -1,12 +1,11 @@
 import superagent from 'superagent';
+import util from 'util';
 
 import Constants from '../constants';
 import EasyPostClient from '../easypost';
 import ExternalApiError from '../errors/api/external_api_error';
 import baseService from './base_service';
 
-const util = require('util');
-
 /**
  * Get an instance of the EasyPostClient using the referral user's API key.
  * @private

src/utils/util.js

@@ -1,11 +1,11 @@
+import crypto from 'crypto';
+import util from 'util';
+
 import Constants from '../constants';
 import FilteringError from '../errors/general/filtering_error';
 import InvalidParameterError from '../errors/general/invalid_parameter_error';
 import SignatureVerificationError from '../errors/general/signature_verification_error';
 
-const crypto = require('crypto');
-const util = require('util');
-
 /**
  * Utility class of various publicly-available helper functions.
  * @public

test/helpers/common.js

@@ -1,14 +1,15 @@
 import 'core-js/stable';
 
 import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
 
 /* eslint-disable no-console */
 process.on('unhandledRejection', (err) => {
   console.error(err, err.stack);
 });
 
 chai.should();
-chai.use(require('chai-as-promised'));
+chai.use(chaiAsPromised);
 chai.config.truncateThreshold = 0;
 
 global.expect = chai.expect;

test/helpers/fixture.js

@@ -1,4 +1,4 @@
-const fs = require('fs');
+import fs from 'fs';
 
 export default class Fixture {
   // Read fixture data from the fixtures JSON file

webpack.config.babel.js

@@ -1,5 +1,5 @@
-const path = require('path');
-const nodeExternals = require('webpack-node-externals');
+import path from 'path';
+import nodeExternals from 'webpack-node-externals';
 
 const mode = process.env.NODE_ENV || 'development';
 const isDev = mode === 'development';