feat(payment): add complete payment system with multi-provider support
Add a full payment and subscription system supporting EasyPay (Alipay/WeChat), Stripe, and direct Alipay/WeChat Pay providers with multi-instance load balancing.
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erio
203
frontend/src/views/user/PaymentQRCodeView.vue
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203
frontend/src/views/user/PaymentQRCodeView.vue
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<template>
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<AppLayout>
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<div class="mx-auto flex max-w-md flex-col items-center space-y-6 py-8">
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<h2 class="text-xl font-semibold text-gray-900 dark:text-white">
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{{ qrUrl ? scanTitle : t('payment.qr.payInNewWindow') }}
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</h2>
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<div v-if="qrUrl" class="rounded-2xl bg-white p-6 shadow-lg dark:bg-dark-800">
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<canvas ref="qrCanvas" class="mx-auto"></canvas>
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</div>
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<!-- Scan prompt for QR code -->
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<p v-if="qrUrl && !expired && scanHint" class="text-center text-sm text-gray-500 dark:text-gray-400">
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{{ scanHint }}
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</p>
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<div v-if="expired" class="text-center">
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<p class="text-lg font-medium text-red-500">{{ t('payment.qr.expired') }}</p>
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<button class="btn btn-primary mt-4" @click="router.push('/purchase')">{{ t('payment.result.backToRecharge') }}</button>
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</div>
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<div v-else class="text-center">
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<p class="text-sm text-gray-500 dark:text-gray-400">{{ qrUrl ? t('payment.qr.expiresIn') : t('payment.qr.payInNewWindowHint') }}</p>
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<p class="mt-1 text-2xl font-bold tabular-nums text-gray-900 dark:text-white">{{ countdownDisplay }}</p>
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<p class="mt-2 text-sm text-gray-400 dark:text-gray-500">{{ t('payment.qr.waitingPayment') }}</p>
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</div>
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<a v-if="payUrl && !qrUrl && !expired" :href="payUrl" target="_blank" rel="noopener noreferrer"
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class="btn btn-primary w-full py-3">
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{{ t('payment.qr.openPayWindow') }}
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</a>
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<!-- Cancel button -->
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<button v-if="!expired && orderId" class="btn btn-secondary w-full" :disabled="cancelling" @click="handleCancel">
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{{ cancelling ? t('common.processing') : t('payment.qr.cancelOrder') }}
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</button>
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</div>
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</AppLayout>
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</template>
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<script setup lang="ts">
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import { ref, computed, onMounted, onUnmounted, watch, nextTick } from 'vue'
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import { useI18n } from 'vue-i18n'
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import { useRoute, useRouter } from 'vue-router'
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import AppLayout from '@/components/layout/AppLayout.vue'
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import { usePaymentStore } from '@/stores/payment'
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import { paymentAPI } from '@/api/payment'
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import { extractApiErrorMessage } from '@/utils/apiError'
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import { useAppStore } from '@/stores'
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import QRCode from 'qrcode'
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import alipayIcon from '@/assets/icons/alipay.svg'
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import wxpayIcon from '@/assets/icons/wxpay.svg'
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const { t } = useI18n()
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const route = useRoute()
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const router = useRouter()
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const paymentStore = usePaymentStore()
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const appStore = useAppStore()
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const qrCanvas = ref<HTMLCanvasElement | null>(null)
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const qrUrl = ref('')
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const payUrl = ref('')
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const orderId = ref(0)
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const remainingSeconds = ref(0)
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const expired = ref(false)
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const cancelling = ref(false)
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const paymentType = ref('')
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let pollTimer: ReturnType<typeof setInterval> | null = null
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let countdownTimer: ReturnType<typeof setInterval> | null = null
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const countdownDisplay = computed(() => {
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const m = Math.floor(remainingSeconds.value / 60)
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const s = remainingSeconds.value % 60
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return m.toString().padStart(2, '0') + ':' + s.toString().padStart(2, '0')
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})
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const isAlipay = computed(() => paymentType.value.includes('alipay'))
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const isWxpay = computed(() => paymentType.value.includes('wxpay'))
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const scanTitle = computed(() => {
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if (isAlipay.value) return t('payment.qr.scanAlipay')
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if (isWxpay.value) return t('payment.qr.scanWxpay')
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return t('payment.qr.scanToPay')
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})
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const scanHint = computed(() => {
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if (isAlipay.value) return t('payment.qr.scanAlipayHint')
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if (isWxpay.value) return t('payment.qr.scanWxpayHint')
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return ''
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})
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function getLogoForType(): string | null {
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if (isAlipay.value) return alipayIcon
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if (isWxpay.value) return wxpayIcon
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return null
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}
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async function renderQR() {
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await nextTick()
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if (!qrCanvas.value || !qrUrl.value) return
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// Use high error correction to support logo overlay
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const logoSrc = getLogoForType()
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await QRCode.toCanvas(qrCanvas.value, qrUrl.value, {
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width: 256,
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margin: 2,
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errorCorrectionLevel: logoSrc ? 'H' : 'M',
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})
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if (!logoSrc) return
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// Draw logo in center of QR code
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const canvas = qrCanvas.value
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const ctx = canvas.getContext('2d')
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if (!ctx) return
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const img = new Image()
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img.src = logoSrc
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img.onload = () => {
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const logoSize = 48
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const x = (canvas.width - logoSize) / 2
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const y = (canvas.height - logoSize) / 2
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// White background with rounded corners
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const pad = 5
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ctx.fillStyle = '#FFFFFF'
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ctx.beginPath()
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const r = 6
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ctx.moveTo(x - pad + r, y - pad)
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ctx.arcTo(x + logoSize + pad, y - pad, x + logoSize + pad, y + logoSize + pad, r)
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ctx.arcTo(x + logoSize + pad, y + logoSize + pad, x - pad, y + logoSize + pad, r)
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ctx.arcTo(x - pad, y + logoSize + pad, x - pad, y - pad, r)
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ctx.arcTo(x - pad, y - pad, x + logoSize + pad, y - pad, r)
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ctx.fill()
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// Draw logo
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ctx.drawImage(img, x, y, logoSize, logoSize)
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}
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}
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async function pollStatus() {
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if (!orderId.value) return
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const order = await paymentStore.pollOrderStatus(orderId.value)
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if (!order) return
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if (order.status === 'COMPLETED' || order.status === 'PAID') {
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cleanup()
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router.push({ path: '/payment/result', query: { order_id: String(orderId.value), status: 'success' } })
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} else if (order.status === 'EXPIRED' || order.status === 'CANCELLED' || order.status === 'FAILED') {
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cleanup()
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expired.value = true
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}
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}
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function startCountdown(seconds: number) {
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remainingSeconds.value = Math.max(0, seconds)
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if (remainingSeconds.value <= 0) {
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expired.value = true
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return
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}
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countdownTimer = setInterval(() => {
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remainingSeconds.value--
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if (remainingSeconds.value <= 0) {
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expired.value = true
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cleanup()
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}
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}, 1000)
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}
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async function handleCancel() {
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if (!orderId.value || cancelling.value) return
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cancelling.value = true
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try {
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await paymentAPI.cancelOrder(orderId.value)
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cleanup()
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router.push('/purchase')
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} catch (err: unknown) {
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appStore.showError(extractApiErrorMessage(err, t('common.error')))
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} finally {
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cancelling.value = false
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}
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}
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function cleanup() {
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if (pollTimer) { clearInterval(pollTimer); pollTimer = null }
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if (countdownTimer) { clearInterval(countdownTimer); countdownTimer = null }
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}
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watch(qrUrl, () => renderQR())
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onMounted(() => {
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orderId.value = Number(route.query.order_id) || 0
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qrUrl.value = String(route.query.qr || '')
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payUrl.value = String(route.query.pay_url || '')
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paymentType.value = String(route.query.payment_type || '')
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// Calculate countdown from expiresAt
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const expiresAtStr = String(route.query.expires_at || '')
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let seconds = 30 * 60 // fallback: 30 minutes
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if (expiresAtStr) {
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const expiresAt = new Date(expiresAtStr)
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const now = new Date()
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seconds = Math.floor((expiresAt.getTime() - now.getTime()) / 1000)
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}
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startCountdown(seconds)
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pollTimer = setInterval(pollStatus, 3000)
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renderQR()
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})
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onUnmounted(() => cleanup())
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</script>
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