接口更改

routes/coupon.js

@@ -1,10 +1,9 @@
 const express = require('express');
 const router = express.Router();
 const { getDB } = require('../database');
-const { auth } = require('../middleware/auth');
 
 
-router.get('/', auth, async (req, res) => {
+router.get('/', async (req, res) => {
   try {
     const db = getDB();
     const query = `
@@ -21,9 +20,10 @@ router.get('/', auth, async (req, res) => {
     res.status(500).json({ error: '获取优惠券失败' });
   }
 });
-router.get('/:id', auth, async (req, res) => {
+router.get('/:id', async (req, res) => {
   try {
     const userId = req.params.id;
+    const couponId = req.body.coupon_id;
     const db = getDB();
     const query = `
       SELECT * FROM coupon_products where remain > 0
@@ -34,12 +34,21 @@ router.get('/:id', auth, async (req, res) => {
       return res.status(404).json({ error: '暂无优惠券' });
     } else {
       const query = [`
-      update coupon_products set remain = remain - 1 where id = ?
+        select * from coupon_use where user_id = ?
       `,`
-      insert into coupon_use (user_id, coupon_id, get_time) values (?, ?, now())
+        update coupon_products set remain = remain - 1 where id = ?
+      `,`
+        insert into coupon_use (user_id, coupon_id, get_time) values (?, ?, now())
       `]
-      await db.query(query[0], [coupon[0].id]);
-      await db.query(query[1], [userId, coupon[0].id]);
+      const [checkUser] = await db.query(query[0], [userId]);
+      console.log("12345",checkUser)
+      for (const item of checkUser) {
+        if (item.coupon_id === coupon[0].id && item.use_time === null) {
+          return res.status(400).json({ error: '优惠券已领取' });
+        }
+      }
+      await db.query(query[1], [coupon[0].id]);
+      await db.query(query[2], [userId, coupon[0].id]);
     }
 
     res.json({coupon, success: true});