Case converter part of package

Author: joedelia

package-lock.json

@@ -18,8 +18,7 @@
   "homepage": "https://github.com/joedelia/ajax2#readme",
   "dependencies": {
     "babel-runtime": "^6.26.0",
-    "camelcase-keys": "^7.0.0",
-    "snakecase-keys": "^4.0.2",
+    "lodash": "^4.17.21",
     "whatwg-fetch": "^2.0.4"
   },
   "devDependencies": {

package.json

@@ -0,0 +1,32 @@
+import camelCaseConverter from 'lodash/camelCase';
+import snakeCaseConverter from 'lodash/snakeCase';
+
+export function toCamelCase(obj) {
+  return deepMapKeys(obj, camelCaseConverter);
+}
+export function toSnakeCase(obj) {
+  return deepMapKeys(obj, snakeCaseConverter);
+}
+
+function deepMapKeys(obj, mod) {
+  if ((obj === null || typeof obj !== 'object') && !Array.isArray(obj))
+    throw new Error('You must provide initial argument as an object');
+
+  if (!mod || typeof mod !== 'function')
+    throw new Error('You must provide a modifier by which your keys will be changed');
+
+  function innerRoutine(obj, mod) {
+    if (Array.isArray(obj))
+      return obj.map(val => innerRoutine(val, mod));
+
+    if (obj !== null && typeof obj === 'object') {
+      return Object.keys(obj).reduce((accum, key) => {
+        accum[mod(key)] = innerRoutine(obj[key], mod);
+        return accum;
+      }, { });
+    }
+    return obj;
+  }
+
+  return innerRoutine(obj, mod);
+}

src/case-convert.js

@@ -1,6 +1,5 @@
 import 'whatwg-fetch'; // eslint-disable-line import/no-unassigned-import
-import toCamelCase from 'camelcase-keys';
-import toSnakeCase from 'snakecase-keys';
+import {toCamelCase, toSnakeCase} from './case-convert';
 import EventDispatcher from './events';
 
 let defaultConvertRequest = null,