微信小程序云开发未支付订单再次支付实列代码
时间: 2023-08-06 22:11:27 浏览: 265
以下是微信小程序云开发中的未支付订单再次支付的实例代码:
1. 获取订单信息
首先,需要获取用户未支付的订单信息,可以通过云函数实现:
```javascript
// 云函数入口文件
const cloud = require('wx-server-sdk')
cloud.init({
env: cloud.DYNAMIC_CURRENT_ENV
})
const db = cloud.database()
// 云函数入口函数
exports.main = async (event, context) => {
const openid = cloud.getWXContext().OPENID
const orderId = event.orderId
const order = await db.collection('order').where({
_id: orderId,
openid: openid,
status: 'unpaid'
}).get()
return order.data[0]
}
```
2. 调用微信支付 API
接下来,使用获取到的订单信息,调用微信支付 API 进行再次支付:
```javascript
const app = getApp()
Page({
data: {
order: null
},
onLoad: function(options) {
const orderId = options.orderId
wx.cloud.callFunction({
name: 'getOrder',
data: {
orderId: orderId
},
success: res => {
this.setData({
order: res.result
})
},
fail: err => {
console.error(err)
}
})
},
payOrder: function() {
const order = this.data.order
// 调用微信支付 API
wx.cloud.callFunction({
name: 'pay',
data: {
orderId: order._id,
totalFee: order.totalFee
},
success: res => {
wx.requestPayment({
timeStamp: res.result.timeStamp,
nonceStr: res.result.nonceStr,
package: res.result.package,
signType: 'MD5',
paySign: res.result.paySign,
success: res => {
wx.showToast({
title: '支付成功'
})
},
fail: err => {
console.error(err)
}
})
},
fail: err => {
console.error(err)
}
})
}
})
```
3. 更新订单状态
最后,需要在支付成功后更新订单状态为已支付:
```javascript
// 云函数入口文件
const cloud = require('wx-server-sdk')
cloud.init({
env: cloud.DYNAMIC_CURRENT_ENV
})
const db = cloud.database()
// 云函数入口函数
exports.main = async (event, context) => {
const openid = cloud.getWXContext().OPENID
const orderId = event.orderId
const order = await db.collection('order').where({
_id: orderId,
openid: openid,
status: 'unpaid'
}).get()
if (order.data.length === 0) {
return {
code: -1,
message: '订单不存在或已支付'
}
}
const res = await db.collection('order').doc(orderId).update({
data: {
status: 'paid',
paidTime: new Date()
}
})
return {
code: 0,
message: '支付成功'
}
}
```