Google Pay API for Web 101

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Transaction info and errors will be logged to the console.

\n \n \n \n \n","deleted",false,"label",[19],{"_33":71,"_13":72,"_35":73,"_37":-5,"_38":39,"_40":74,"_42":43,"_44":75,"_17":46,"_47":76,"_48":77,"_50":51,"_52":-5,"_65":78,"_18":79},{"_33":34,"_13":19,"_35":36,"_37":-5,"_38":39,"_40":41,"_42":43,"_44":68,"_17":46,"_47":24,"_48":49,"_50":51,"_52":-5,"_65":69,"_18":70},{"_33":57,"_13":58,"_35":59,"_37":-5,"_38":39,"_40":60,"_42":43,"_44":61,"_17":62,"_47":63,"_48":64,"_50":51,"_52":-5,"_65":66,"_18":67},"0d58c00a-393a-11f1-a7fb-42b51c65c3df","main.ts","47a0d1c2-3939-11f1-a40c-42b51c65c3df",17,["D",1776305691983],6,"http","const html = /* html */ `\n\n\n \n \n \n Google Pay API for Web 101\n \n\n \n

Transaction info and errors will be logged to the console.

\n \n \n \n \n\n`\n\n// Learn more: https://docs.val.town/vals/http/\nexport default async function (req: Request): Promise {\n return new Response(html, { headers: { 'Content-Type': 'text/html' } })\n}","children",[],[58],["D",1776305444804],[],[19],"a293ec90-3939-11f1-8e7d-42b51c65c3df","google-pay.js","6dbe5b0e-3939-11f1-9527-42b51c65c3df",11,["D",1776305512854],"script","//=============================================================================\n// Configuration\n//=============================================================================\n\n// The DOM element that the Google Pay button will be rendered into\nconst GPAY_BUTTON_CONTAINER_ID = 'gpay-container'\n\n// Update the `merchantId` and `merchantName` properties with your own values.\n// Your real info is required when the environment is `PRODUCTION`.\nconst merchantInfo = {\n merchantId: '12345678901234567890',\n merchantName: 'Example Merchant'\n}\n\n// This is the base configuration for all Google Pay payment data requests.\nconst baseGooglePayRequest = {\n apiVersion: 2,\n apiVersionMinor: 0,\n allowedPaymentMethods: [\n {\n type: 'CARD',\n parameters: {\n allowedAuthMethods: [\n 'PAN_ONLY',\n 'CRYPTOGRAM_3DS'\n ],\n allowedCardNetworks: [\n 'AMEX',\n 'DISCOVER',\n 'INTERAC',\n 'JCB',\n 'MASTERCARD',\n 'VISA'\n ]\n },\n tokenizationSpecification: {\n type: 'PAYMENT_GATEWAY',\n parameters: {\n gateway: 'example',\n gatewayMerchantId: 'exampleGatewayMerchantId'\n }\n }\n }\n ],\n merchantInfo\n}\n\n// Prevent accidental edits to the base configuration. Mutations will be\n// handled by cloning the config using deepCopy() and modifying the copy.\nObject.freeze(baseGooglePayRequest)\n\n//=============================================================================\n// Google Payments client singleton\n//=============================================================================\n\nlet paymentsClient = null\n\nfunction getGooglePaymentsClient() {\n if (paymentsClient === null) {\n paymentsClient = new google.payments.api.PaymentsClient({\n environment: 'TEST',\n merchantInfo\n // todo: paymentDataCallbacks (codelab pay-web-201)\n })\n }\n\n return paymentsClient\n}\n\n//=============================================================================\n// Helpers\n//=============================================================================\n\nconst deepCopy = (obj) => JSON.parse(JSON.stringify(obj))\n\nfunction renderGooglePayButton() {\n const button = getGooglePaymentsClient().createButton({\n onClick: onGooglePaymentButtonClicked\n })\n\n document.getElementById(GPAY_BUTTON_CONTAINER_ID).appendChild(button)\n}\n\n//=============================================================================\n// Event Handlers\n//=============================================================================\n\nfunction onGooglePayLoaded() {\n const req = deepCopy(baseGooglePayRequest)\n\n getGooglePaymentsClient()\n .isReadyToPay(req)\n .then(function (res) {\n if (res.result) {\n renderGooglePayButton()\n } else {\n console.log('Google Pay is not ready for this user.')\n }\n })\n .catch(console.error)\n}\n\nfunction onGooglePaymentButtonClicked() {\n // Create a new request data object for this request\n const req = {\n ...deepCopy(baseGooglePayRequest),\n transactionInfo: {\n countryCode: 'US',\n currencyCode: 'USD',\n totalPriceStatus: 'FINAL',\n totalPrice: (Math.random() * 999 + 1).toFixed(2)\n }\n // todo: callbackIntents (codelab gpay-web-201)\n }\n\n // Write request object to console for debugging\n console.log(req)\n\n getGooglePaymentsClient()\n .loadPaymentData(req)\n .then(function (res) {\n // Write response object to console for debugging\n console.log(res)\n // @todo pass payment token to your gateway to process payment\n // @note DO NOT save the payment credentials for future transactions\n paymentToken = res.paymentMethodData.tokenizationData.token\n })\n 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