1.添加json-bigint库 (#92)

2.解决JSON.parse 之后精度就丢失问题

Author: imerovingian

lib/api_common.js

@@ -3,6 +3,7 @@
 // 本文件用于wechat API，基础文件，主要用于Token的处理和mixin机制
 const httpx = require('httpx');
 const liburl = require('url');
+const JSONbig = require('json-bigint');
 const {
   replaceJSONCtlChars
 } = require('./util');
@@ -129,7 +130,7 @@ class API {
       var data;
       var origin = buffer.toString();
       try {
-        data = JSON.parse(replaceJSONCtlChars(origin));
+        data = JSONbig.parse(replaceJSONCtlChars(origin));
       } catch (ex) {
         let err = new Error('JSON.parse error. buffer is ' + origin);
         err.name = 'WeChatAPIError';

package.json

@@ -17,7 +17,8 @@
   ],
   "dependencies": {
     "formstream": ">=0.0.8",
-    "httpx": "^2.1.1"
+    "httpx": "^2.1.1",
+    "json-bigint": "^0.2.3"
   },
   "devDependencies": {
     "coveralls": "*",