diff --git a/app.js b/app.js
index 9467b93..14ce3f7 100644
--- a/app.js
+++ b/app.js
@@ -32,6 +32,35 @@ App({
     }
   },
 
+  request: function(obj) {
+    var header = obj.header || {}
+    if (!header['content-type']) {
+      header['content-type'] = 'application/json'
+    }
+    if (!header['Authorization']) {
+      header['Authorization'] = getApp().globalData.token
+    }
+
+    wx.request({
+      url: obj.url,
+      data: obj.data || {},
+      method: obj.method || 'GET',
+      header: header,
+      success: function(res) {
+        if (res.statusCode === 401) {
+          
+        }
+        typeof obj.success == "function" && obj.success(res)
+      },
+      fail: obj.fail || function() {},
+      complete: obj.complete || function() {}
+    })
+  },
+
+  authRequest: function(obj) {
+    function unauthorizeCallback() {}
+  },
+
   globalData:{
     userInfo: null,
     currentCustomer: null,
diff --git a/pages/cart/cart.wxml b/pages/cart/cart.wxml
index c954eca..10a5101 100644
--- a/pages/cart/cart.wxml
+++ b/pages/cart/cart.wxml
@@ -16,7 +16,7 @@
 </view>
 <view class="separate"></view>
 
-<view bindtap="bindSelectCoupon">
+<view class="use-coupon" bindtap="bindSelectCoupon">
   <view><text>使用优惠券</text></view>
 </view>
 
diff --git a/pages/cart/cart.wxss b/pages/cart/cart.wxss
index cd431ed..5c20ab7 100644
--- a/pages/cart/cart.wxss
+++ b/pages/cart/cart.wxss
@@ -24,6 +24,7 @@
 .item {
   height: 180rpx;
   padding: 15rpx;
+  padding-left: 10rpx;
   background-color: #fff;
   border-bottom: 1px solid #e4e4e4;
   color: #333;
@@ -115,4 +116,10 @@
 .separate {
   height: 18rpx;
   background-color: #f2f2f2;
+}
+
+.use-coupon {
+  font-size: 30rpx;
+  line-height: 55rpx;
+  margin-left: 15rpx;
 }
\ No newline at end of file
diff --git a/pages/cart/coupon.js b/pages/cart/coupon.js
index 9c49649..12791c8 100644
--- a/pages/cart/coupon.js
+++ b/pages/cart/coupon.js
@@ -17,19 +17,12 @@ Page({
     // var data = wx.getStorageSync('coupons')
     // this.setData({coupons: data})
     var that = this
-    var data = {}
-    data['token'] = app.globalData.token
-    wx.request({
+    app.request({
       url: `${app.globalData.API_URL}/coupons`,
-      data: data,
       method: 'GET',
       success: function(res){
         var data = app.store.sync(res.data)
         that.setData({coupons: data})
-      },
-      fail: function() {
-      },
-      complete: function() {
       }
     })
   }
diff --git a/utils/address.js b/utils/address.js
index 85accc7..f4e6a8e 100644
--- a/utils/address.js
+++ b/utils/address.js
@@ -1,7 +1,7 @@
 const app = getApp()
 
 function postAddress (data) {
-  wx.request({
+  app.request({
     method: 'POST',
     url: `${app.globalData.API_URL}/addresses/new`,
     data: Object.assign({}, data),
diff --git a/utils/order.js b/utils/order.js
index d87dd31..b532bfa 100644
--- a/utils/order.js
+++ b/utils/order.js
@@ -1,11 +1,10 @@
 const app = getApp()
 
 function postBilling (data, resolve) {
-  data['token'] = app.globalData.token
-  wx.request({
+  app.request({
     method: 'POST',
     url: `${app.globalData.API_URL}/orders/create_applet_order`,
-    data: data,
+    data: data || {},
     header: { 'Content-Type': 'application/json'},
     success: resolve,
     fail: function(){}
diff --git a/utils/product.js b/utils/product.js
index ef87b41..0c47f65 100644
--- a/utils/product.js
+++ b/utils/product.js
@@ -1,7 +1,7 @@
 const app = getApp()
 
 function getProducts (resolve) {
-  wx.request({
+  app.request({
     url: `${app.globalData.API_URL}/products`,
     header: { 'Content-Type': 'application/json' },
     success: resolve,
@@ -10,7 +10,7 @@ function getProducts (resolve) {
 }
 
 function getSlides (resolve) {
-  wx.request({
+  app.request({
     url: `${app.globalData.API_URL}/home_slides`,
     header: { 'Content-Type': 'application/json' },
     success: resolve,
@@ -19,7 +19,7 @@ function getSlides (resolve) {
 }
 
 function getCategories (data, resolve, reject) {
-  wx.request({
+  app.request({
     url: `${app.globalData.API_URL}/products?type=${data}`,
     header: { 'Content-Type': 'application/json'},
     success: resolve,
diff --git a/utils/profile.js b/utils/profile.js
index df82865..e704db1 100644
--- a/utils/profile.js
+++ b/utils/profile.js
@@ -1,7 +1,7 @@
 const app = getApp()
 
 function getZichanSlides (resolve) {
-  wx.request({
+  app.request({
     url: `${app.globalData.API_URL}/my_assets`,
     data: {token: app.globalData.token},
     header: { 'Content-Type': 'application/json'},
@@ -45,7 +45,7 @@ function getCustomerInfo (data, cb) {
 }
 
 function getPassCode (mobile, cb) {
-  wx.request({
+  app.request({
     url: `${app.globalData.API_URL}/send_validation_code/send_message`,
     header: { 'Content-Type': 'application/json'},
     data: {