Zahlung akzeptieren

import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import {
  registerAppTool,
  registerAppResource,
  RESOURCE_MIME_TYPE,
} from "@modelcontextprotocol/ext-apps/server";
import { readFileSync } from "node:fs";
import Stripe from "stripe";
import { z } from "zod";

const stripe = new Stripe(
"sk_test_BQokikJOvBiI2HlWgH4olfQ2")
const server = new McpServer({ name: "my-mcp-server", version: "1.0.0" });
const resourceUri = "ui://list-products.html";

async function createCheckoutSession(priceIds) {
  const lineItems = priceIds.map((price) => ({ price, quantity: 1 }));

  const session = await stripe.checkout.sessions.create({
    mode: "payment",
    line_items: lineItems,
    success_url: "https://example.com/checkout/success",
  });

  return session;
}

// Register the tool that creates a checkout session
server.registerTool(
  "buy-products",
  {
    title: "Buy products",
    description:
      "Create a checkout page link for purchasing the selected products",
    inputSchema: { priceIds: z.array(z.string()) },
  },
  async ({ priceIds }) => {
    const session = await createCheckoutSession(priceIds);

    return {
      content: [
        {
          type: "text",
          text: `[Complete your purchase here](${session.url})`,
        },
      ],
      structuredContent: {
        checkoutSessionId: session.id,
        checkoutSessionUrl: session.url,
      },
    };
  }
);

registerAppTool(
  server,
  "list-products",
  {
    title: "List products",
    description: "List the products available for purchase",
    _meta: { ui: { resourceUri } },
  },
  async () => {
    const suggestedProducts = [
      // The price IDs from the earlier step
      { priceId: 
"{{PRICE_ID}}", name: "Test product 1" },
      { priceId: 
"{{PRICE_ID}}", name: "Test product 2" },
    ];

    return {
      structuredContent: { products: suggestedProducts },
      content: [],
    };
  }
);

// Register the resource that serves the bundled HTML
registerAppResource(
  server,
  "list-products-widget",
  resourceUri,
  { mimeType: RESOURCE_MIME_TYPE },
  async () => {
    const html = readFileSync("dist/ui/list-products.html", "utf8");

    return {
      contents: [
        {
          uri: resourceUri,
          mimeType: RESOURCE_MIME_TYPE,
          text: html,
        },
      ],
    };
  }
);

<div id="root"></div>
<script type="module" src="/ui/mcp-app.js"></script>

import { App } from "@modelcontextprotocol/ext-apps";

const app = new App({ name: "ProductList", version: "1.0.0" });

// Establish communication with the host
await app.connect();

/**
  * UI markup and event handlers
  */
const renderProduct = (product) => {
  return `
    <label>
      <input type="checkbox" name="cart[]" value="${product.priceId}">
      ${product.name}
    </label>
  `;
};

const handleSubmit = async (event) => {
  // We'll fill this in next
}

const renderApp = (products) => {
  const root = document.querySelector("#root");

  root.innerHTML = `
    <h1>Select products to purchase</h1>
    <form id="product-form">
      ${products.map(renderProduct).join("")}
      <button type="submit">Buy</button>
    </form>
  `;

  document
    .querySelector("#product-form")
    ?.addEventListener("submit", handleSubmit);
};

/**
 * Render the list of products from the tool's structuredContent
 */
app.ontoolresult = (params) => {
  const { products } = params.structuredContent ?? {};
  if (products) {
    renderApp(products);
  }
};

const handleSubmit = async (event) => {
  event.preventDefault();
  const formData = new FormData(event.target);
  const priceIds = Array.from(formData.values());

  // Call the buy-products tool to create a Checkout Session
  const { structuredContent } = await app.callServerTool({
    name: "buy-products",
    arguments: { priceIds },
  });

  if (typeof structuredContent?.checkoutSessionUrl === "string") {
    await app.openLink({ url: structuredContent.checkoutSessionUrl });
  }
};