From 20f11044b0651b46ef9da079beab733b0c006933 Mon Sep 17 00:00:00 2001
From: vilicvane <i@vilic.info>
Date: Thu, 31 Dec 2015 00:52:26 +0800
Subject: [PATCH] use extendable-error package

---
 package.json     |  1 +
 src/api-error.ts | 10 ++++------
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/package.json b/package.json
index e9aef85..25aff95 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
   "dependencies": {
     "chalk": "^1.1.1",
     "express": "^4.13.3",
+    "extendable-error": "^0.1.1",
     "glob": "^6.0.1",
     "hyphenate": "^0.2.1",
     "thenfail": "^0.3.17"
diff --git a/src/api-error.ts b/src/api-error.ts
index a2b1fce..a4bd626 100644
--- a/src/api-error.ts
+++ b/src/api-error.ts
@@ -1,17 +1,15 @@
+import ExtendableError from 'extendable-error';
+
 /**
  * APIError class.
  */
-export class APIError extends Error {
-    name = (this.constructor as any).name;
-    stack: string;
-    
+export class APIError extends ExtendableError {
     constructor(
         public code: number,
-        public message = APIErrorMessages[code] || APIErrorMessages[APIErrorCode.unknown],
+        message = APIErrorMessages[code] || APIErrorMessages[APIErrorCode.unknown],
         public status = APIError.defaultStatus
     ) {
         super(message);
-        this.stack = (new Error() as any).stack.replace(/\s+at new APIError .+/, '');
     }
     
     static defaultStatus = 500;