feat(util): add more robust library

package.json

@@ -71,12 +71,14 @@
     "tslint": "^5.11.0",
     "tslint-config-prettier": "^1.16.0",
     "typedoc": "^0.13.0",
-    "typescript": "^3.1.6"
+    "typescript": "^3.1.6",
+    "uuid": "^3.3.2"
   },
   "peerDependencies": {
     "aws-sdk": "^2.286.1",
     "lodash": "^4.17.10",
     "reflect-metadata": "^0.1.12",
-    "rxjs": "^6.0.0"
+    "rxjs": "^6.0.0",
+    "uuid": "^3.3.2"
   }
 }

src/mapper/mapper.ts

@@ -1,3 +1,4 @@
+import {v4 as uuidv4} from 'uuid'
 import { Metadata } from '../decorator/metadata/metadata'
 import { metadataForClass, metadataForProperty } from '../decorator/metadata/metadata-helper'
 import { Key, PropertyMetadata } from '../decorator/metadata/property-metadata.model'
@@ -16,7 +17,7 @@ import { Binary } from './type/binary.type'
 import { EnumType } from './type/enum.type'
 import { NullType } from './type/null.type'
 import { UndefinedType } from './type/undefined.type'
-import { typeOf, typeOfFromDb, uuidv4 } from './util'
+import { typeOf, typeOfFromDb } from './util'
 
 const mapperForType: Map<AttributeValueType, MapperForType<any, any>> = new Map()
 

src/mapper/util.ts

@@ -251,13 +251,3 @@ export function typeName(type: any): 'Null' | 'Undefined' | string {
 
   throw new Error(`was not able to resolve type name for type ${type}`)
 }
-
-// FIXME UUID replace with a more bullet proof implementation node uuid module requires crypto, need to figure out how to use it with browser
-export function uuidv4() {
-  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, c => {
-    // tslint:disable
-    let r = (Math.random() * 16) | 0,
-      v = c == 'x' ? r : (r & 0x3) | 0x8
-    return v.toString(16)
-  })
-}