유니앱에서 전자주문 및 테이크아웃 배달을 구현하는 방법

// 菜单页
export default {
  data() {
    return {
      menuList: [] // 菜单列表
    }
  },
  mounted() {
    this.getMenuList()
  },
  methods: {
    getMenuList() {
      uni.request({
        url: '接口地址',
        success: (res) => {
          this.menuList = res.data.menuList
        }
      })
    }
  }
}

// 菜单页
export default {
  methods: {
    addToCart(item) {
      this.$store.commit('addToCart', item)
    }
  }
}

// store.js
export default new Vuex.Store({
  state: {
    cartList: [] // 购物车列表
  },
  mutations: {
    addToCart(state, item) {
      state.cartList.push(item)
    }
  }
})

// 购物车页
export default {
  computed: {
    cartList() {
      return this.$store.state.cartList
    },
    totalPrice() {
      let total = 0
      for (let item of this.cartList) {
        total += item.price * item.quantity
      }
      return total
    }
  },
  methods: {
    increase(item) {
      this.$store.commit('increase', item)
    },
    decrease(item) {
      this.$store.commit('decrease', item)
    },
    remove(item) {
      this.$store.commit('remove', item)
    }
  }
}

// store.js
export default new Vuex.Store({
  mutations: {
    increase(state, item) {
      item.quantity++
    },
    decrease(state, item) {
      if (item.quantity > 1) {
        item.quantity--
      }
    },
    remove(state, item) {
      const index = state.cartList.indexOf(item)
      state.cartList.splice(index, 1)
    }
  }
})

// 外卖页
export default {
  data() {
    return {
      address: '', // 配送地址
      contact: '', // 联系人
      payResult: '' // 支付结果
    }
  },
  methods: {
    submitOrder() {
      uni.request({
        url: '接口地址',
        method: 'POST',
        data: {
          address: this.address,
          contact: this.contact,
          cartList: this.$store.state.cartList
        },
        success: (res) => {
          this.payOrder(res.data.orderId)
        }
      })
    },
    payOrder(orderId) {
      uni.requestPayment({
        timeStamp: '',
        nonceStr: '',
        package: '',
        signType: '',
        paySign: '',
        success: (res) => {
          this.payResult = '支付成功'
        },
        fail: (res) => {
          this.payResult = '支付失败'
        }
      })
    }
  }
}