From 4719bd0a30100babc358a7d9263af5ee073b5c41 Mon Sep 17 00:00:00 2001
From: James ZHANG <thenorthmemory@qq.com>
Date: Fri, 18 Sep 2020 09:03:53 +0800
Subject: [PATCH] `Transformer.toXml` usage sample

---
 README.md    | 12 ++++++++++++
 lib/aes.js   |  2 +-
 lib/utils.js |  5 +++++
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 71cd8ad..7dac3c1 100644
--- a/README.md
+++ b/README.md
@@ -258,6 +258,18 @@ client.post('https://fraud.mch.weixin.qq.com/risk/getpublickey', {
 }).then(({data}) => console.info(data)).catch(({response}) => console.error(response))
 ```
 
+### 通知应答
+
+```javascript
+const {Transformer} = require('wechatpay-axios-plugin')
+const xml = Transformer.toXml({
+  return_code: 'SUCCESS',
+  return_msg: 'OK',
+})
+
+console.info(xml)
+```
+
 ## aes-256-ecb/pcks7padding
 
 ### v0.3.1开始支持解密
diff --git a/lib/aes.js b/lib/aes.js
index cacdabd..aa300a1 100644
--- a/lib/aes.js
+++ b/lib/aes.js
@@ -19,7 +19,7 @@ class Aes {
   static get base64() { return `base64` }
 
   /**
-   * @property {string} BLOCK_SIZE - The `aes` block size
+   * @property {integer} BLOCK_SIZE - The `aes` block size
    */
   static get BLOCK_SIZE() { return 16 }
 
diff --git a/lib/utils.js b/lib/utils.js
index 92e19aa..aca00e1 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -28,6 +28,11 @@ utils.extend(utils, {
     return this.isProcessEnv() && this.isObject(val) && val.toString() === '[object FormData]'
   },
 
+  /**
+   * Compose the `User-Agent` content
+   *
+   * @returns {string} - The `User-Agent` value
+   */
   userAgent: function() {
     const {name: pkgName, version: pkgVersion} = require('../package.json')
     const {version: axiosVersion} = require('axios/package.json')