refactor: replace lodash isArray + assign (#2236)

- replace lodash.isArray for native Array.isArray
- replace lodash.assign for native object destructuring or Object.assign

Refs #2187

src/execute/index.js

@@ -1,6 +1,5 @@
 import getIn from 'lodash/get';
 import isPlainObject from 'lodash/isPlainObject';
-import isArray from 'lodash/isArray';
 import url from 'url';
 import cookie from 'cookie';
 
@@ -77,7 +76,7 @@ export function execute({
     ...extras,
   });
 
-  if (request.body && (isPlainObject(request.body) || isArray(request.body))) {
+  if (request.body && (isPlainObject(request.body) || Array.isArray(request.body))) {
     request.body = JSON.stringify(request.body);
   }
 

src/execute/oas3/build-request.js

@@ -1,6 +1,5 @@
 // This function runs after the common function,
 // `src/execute/index.js#buildRequest`
-import assign from 'lodash/assign';
 import get from 'lodash/get';
 import isPlainObject from 'lodash/isPlainObject';
 import btoa from 'btoa';
@@ -88,7 +87,7 @@ export default function buildRequest(options, req) {
 // Add security values, to operations - that declare their need on them
 // Adapted from the Swagger2 implementation
 export function applySecurities({ request, securities = {}, operation = {}, spec }) {
-  const result = assign({}, request);
+  const result = { ...request };
   const { authorized = {} } = securities;
   const security = operation.security || spec.security || [];
   const isAuthorized = authorized && !!Object.keys(authorized).length;

src/execute/swagger2/build-request.js

@@ -1,5 +1,4 @@
 import btoa from 'btoa';
-import assign from 'lodash/assign';
 
 // This function runs after the common function,
 // `src/execute/index.js#buildRequest`
@@ -57,7 +56,7 @@ export default function buildRequest(options, req) {
 
 // Add security values, to operations - that declare their need on them
 export function applySecurities({ request, securities = {}, operation = {}, spec }) {
-  const result = assign({}, request);
+  const result = { ...request };
   const { authorized = {}, specSecurity = [] } = securities;
   const security = operation.security || specSecurity;
   const isAuthorized = authorized && !!Object.keys(authorized).length;

src/index.js

@@ -1,4 +1,3 @@
-import assign from 'lodash/assign';
 import startsWith from 'lodash/startsWith';
 import Url from 'url';
 
@@ -34,11 +33,11 @@ function Swagger(url, opts = {}) {
     return new Swagger(opts);
   }
 
-  assign(this, opts);
+  Object.assign(this, opts);
 
   const prom = this.resolve().then(() => {
     if (!this.disableInterfaces) {
-      assign(this, Swagger.makeApisTagOperation(this));
+      Object.assign(this, Swagger.makeApisTagOperation(this));
     }
     return this;
   });