uniapp开发微信小程序支付

<button @tap="toResult">立即购买button>

toResult(){
	let _this = this
	console.log(_this.data.cardId)
	console.log(_this.shopId)
	let data={
		cardId: _this.data.cardId,
		shopId: _this.shopId 
	}
	request.post('/app/vip/buyVipCard', data).then(res=>{//支付接口
		console.log(res)
		uni.showToast({
			title: '加载中',
			icon: 'loading',
			duration: 9000
		});
		if(res.code==200) {
			toPay(res.result,1).then(re=>{
				console.log(re)
				uni.requestPayment({
					provider: 'wxpay',
					timeStamp: re.timeStamp,
					nonceStr: re.nonceStr,
					package: re.package,
					signType: re.signType,
					paySign: re.paySign,
					success: function (ress) {
						uni.hideToast();
						console.log('success:' + JSON.stringify(ress));
						_this.$api.msg('支付成功');	
						uni.redirectTo({
						    url: 'submit_review'
						});
					},
					fail: function (err) {
						uni.hideToast();	
						_this.$api.msg('支付失败');
						console.log('fail:' + JSON.stringify(err));
						setTimeout(function(){
							uni.redirectTo({
								url: 'card'
							})
						},1000)
					}
				})
			})
		}else {
			_this.$api.msg(res.errorMessage);	
		}
		
	})
	
}

uniapp文档：https://uniapp.dcloud.io/api/plugins/payment