feat(mixins): Add toPlainObject

Author: trodrigues

package.json

@@ -10,7 +10,7 @@
   "author": "Contentful <opensource@contentful.com>",
   "license": "MIT",
   "scripts": {
-    "clean": "rimraf *.js && rimraf coverage && rimraf src/vendor-* && rimraf vendor-* && rimraf src/package.json",
+    "clean": "rimraf *.js && rimraf coverage && rimraf src/vendor-* && rimraf mixins && rimraf vendor-* && rimraf src/package.json",
     "build": "npm run clean && npm run vendor && cp -r src/vendor-* . && npm run build:dist",
     "build:dist": "babel src --out-dir .",
     "test:ci": "npm run test:cover",

src/mixins/to-plain-object.js

@@ -0,0 +1,18 @@
+import {cloneDeep} from 'lodash/lang'
+
+/**
+ * Mixes in a method to return just a plain object with no additional methods
+ * @private
+ * @param {Object} data - Any plain JSON response returned from the API
+ * @return {Object} Enhanced object with toPlainObject method
+ */
+export default function mixinToPlainObject (data) {
+  return Object.defineProperty(data, 'toPlainObject', {
+    enumerable: false,
+    configurable: false,
+    writable: false,
+    value: function () {
+      return cloneDeep(this)
+    }
+  })
+}