From 0300a37449b456e84eda576c6060703a9db30637 Mon Sep 17 00:00:00 2001
From: Salman Dabbakuti <29351207+Salmandabbakuti@users.noreply.github.com>
Date: Mon, 23 Dec 2024 16:57:42 +0530
Subject: [PATCH] Initial commit

---
 .env.example                |    2 +
 .gitignore                  |   21 +
 LICENSE                     |   21 +
 README.md                   |   25 +
 config.js                   |    9 +
 index.js                    |  106 +++
 orders.json                 |  194 ++++++
 package-lock.json           | 1238 +++++++++++++++++++++++++++++++++++
 package.json                |   22 +
 public/payment-cancel.html  |   55 ++
 public/payment-success.html |   55 ++
 public/purchase.html        |  105 +++
 12 files changed, 1853 insertions(+)
 create mode 100644 .env.example
 create mode 100644 .gitignore
 create mode 100644 LICENSE
 create mode 100644 README.md
 create mode 100644 config.js
 create mode 100644 index.js
 create mode 100644 orders.json
 create mode 100644 package-lock.json
 create mode 100644 package.json
 create mode 100644 public/payment-cancel.html
 create mode 100644 public/payment-success.html
 create mode 100644 public/purchase.html

diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..acbda19
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,2 @@
+STRIPE_SECRET_KEY=your_secret_key
+STRIPE_ENDPOINT_SECRET=your_endpoint_secret
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c3a5954
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# Build and Release Folders
+bin-debug/
+bin-release/
+[Oo]bj/
+[Bb]in/
+
+# Other files and folders
+.settings/
+node_modules/
+
+
+# Executables
+*.swf
+*.air
+*.ipa
+*.apk
+*.env
+
+# Project files, i.e. `.project`, `.actionScriptProperties` and `.flexProperties`
+# should NOT be excluded as they contain compiler settings and other important
+# information for Eclipse / Flash Builder.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..3771861
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Salman Dabbakuti
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..9ab1d4c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,25 @@
+# Stripe Payments Integration with express
+
+This is a simple project to demonstrate how to integrate stripe payments and webhook handling with express
+
+## Getting Started
+
+> Copy the `.env.example` file to `.env` and fill in the required values.
+
+```bash
+
+npm install
+
+npm start
+```
+
+## Usage
+
+- Go to `http://localhost:3000/purchase` and click on checkout.
+- It will redirect you to the stripe checkout page. Fill in the details and click on pay.
+- You will be redirected to the success page if the payment is successful.
+- You can see the payment details in the stripe dashboard.
+
+## License
+
+This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details.
diff --git a/config.js b/config.js
new file mode 100644
index 0000000..ef59a06
--- /dev/null
+++ b/config.js
@@ -0,0 +1,9 @@
+require('dotenv').config();
+
+const STRIPE_SECRET_KEY = process.env.STRIPE_SECRET_KEY;
+const STRIPE_ENDPOINT_SECRET = process.env.STRIPE_ENDPOINT_SECRET;
+
+module.exports = {
+  STRIPE_SECRET_KEY,
+  STRIPE_ENDPOINT_SECRET
+};
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..10b2973
--- /dev/null
+++ b/index.js
@@ -0,0 +1,106 @@
+const express = require("express");
+const Stripe = require("stripe");
+const { STRIPE_SECRET_KEY, STRIPE_ENDPOINT_SECRET } = require("./config");
+
+const stripe = new Stripe(STRIPE_SECRET_KEY);
+
+const app = express();
+
+// Middleware
+app.use(express.json({
+  verify: (req, res, buf) => {
+    if (req.originalUrl.startsWith("/payment-webhook")) {
+      req.rawBody = buf.toString();
+    }
+  }
+}));
+app.use(express.urlencoded({ extended: true }));
+app.use(express.static(__dirname + "/public"));
+
+
+// Routes
+app.post("/create-payment-session", async (req, res) => {
+  try {
+    const { amount, currency } = req.body;
+    const session = await stripe.checkout.sessions.create({
+      payment_method_types: ["card"],
+      line_items: [
+        {
+          price_data: {
+            currency,
+            product_data: {
+              name: "Technow Pro Subscription",
+              description: "Monthly subscription to Technow Pro",
+              images: ["https://picsum.photos/200/300"]
+            },
+            unit_amount: amount * 100 // accepts amount in cents
+          },
+          quantity: 1
+        }
+      ],
+      payment_intent_data: {
+        // metadata to store custom data and map in webhook
+        // can only store string values, so stringify if needed
+        metadata: {
+          order_id: "12345",
+          user_id: "67890"
+        }
+      },
+      mode: "payment",
+      success_url: `${req.headers.origin}/payment-success`,
+      cancel_url: `${req.headers.origin}/payment-cancel`
+    });
+    res.status(200).json({ id: session.id, url: session.url });
+  } catch (error) {
+    console.error("Error creating order:", error);
+    res.status(500).json({
+      code: "Internal server error",
+      message: error.message
+    });
+  }
+});
+
+app.post("/payment-webhook", async (req, res) => {
+  console.log("Received webhook payload:", req.body);
+  console.log("Received stripe webhook event");
+  const sig = req.headers["stripe-signature"];
+  let event;
+  try {
+    event = stripe.webhooks.constructEvent(
+      req.rawBody, // raw request body. if express.raw() middleware is used, use req.body
+      sig,
+      STRIPE_ENDPOINT_SECRET
+    );
+  } catch (err) {
+    console.log("Webhook Error: ", err.message);
+    return res.status(400).send(`Webhook Error: ${err.message}`);
+  }
+
+  // Handle the event
+  switch (event.type) {
+    case "payment_intent.succeeded":
+      console.log("Received payment_intent.succeeded event");
+      const paymentIntent = event.data.object;
+      console.log("Payment success intent:", paymentIntent);
+      // verify payment and update order status in database
+      break;
+    default:
+      console.log(`Unhandled event type ${event.type}`);
+  }
+});
+
+app.get("/", (req, res) => res.send("Hello World"));
+app.get("/purchase", (req, res) =>
+  res.sendFile(__dirname + "/public/purchase.html")
+);
+app.get("/payment-cancel", (req, res) =>
+  res.sendFile(__dirname + "/public/payment-cancel.html")
+);
+app.get("/payment-success", (req, res) =>
+  res.sendFile(__dirname + "/public/payment-success.html")
+);
+
+const PORT = process.env.PORT || 3000;
+app.listen(PORT, () =>
+  console.log(`Server is running on http://localhost:${PORT}`)
+);
diff --git a/orders.json b/orders.json
new file mode 100644
index 0000000..69bc90f
--- /dev/null
+++ b/orders.json
@@ -0,0 +1,194 @@
+[
+  {
+    "order_id": "order_PZJiFDNompVq8E",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZJiRTrfw0Erhc"
+  },
+  {
+    "order_id": "order_PZJk44KVGtbTJS",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZJkqXpqJRCSaF"
+  },
+  {
+    "order_id": "order_PZJlSWqlP0HzoT",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZJlzNEt9bBjYk"
+  },
+  {
+    "order_id": "order_PZJoLjckXdZTwC",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZJoe70qge5uh2"
+  },
+  {
+    "order_id": "order_PZLZqt7g9WQ7DD",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZLZxl53ug33gY"
+  },
+  {
+    "order_id": "order_PZMCvJ79m7BQ3j",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123"
+  },
+  {
+    "order_id": "order_PZMDrVOJQZnvbQ",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMDxJgvxQXpCb"
+  },
+  {
+    "order_id": "order_PZMEm186wbMYor",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMEqx81fXKEur"
+  },
+  {
+    "order_id": "order_PZMGVDBrg2s2VW",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123"
+  },
+  {
+    "order_id": "order_PZMGxtUVo8eiRe",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMH2MybR2vKc6"
+  },
+  {
+    "order_id": "order_PZMINXLgtjZfcz",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMISQF1dkDlwp"
+  },
+  {
+    "order_id": "order_PZMKFCeDmWNJS3",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMKKZqOcuvBrS"
+  },
+  {
+    "order_id": "order_PZMRLqmrTybO88",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMRRhSm3DcYKh"
+  },
+  {
+    "order_id": "order_PZMTO2dWo12PC3",
+    "amount": 599900,
+    "currency": "INR",
+    "receipt": "order_rcptid_11",
+    "notes": {
+      "email": "johndoe@gmail.com",
+      "plan": "basic",
+      "userId": "123"
+    },
+    "createdBy": "123",
+    "status": "paid",
+    "payment_id": "pay_PZMTTH9G99xCBs"
+  }
+]
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..c706742
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1238 @@
+{
+  "name": "stripe-webhook-integration",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "stripe-webhook-integration",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "dotenv": "^16.4.7",
+        "express": "^4.21.2",
+        "stripe": "^17.5.0"
+      },
+      "devDependencies": {
+        "nodemon": "^3.1.9"
+      }
+    },
+    "node_modules/@types/node": {
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diff --git a/package.json b/package.json
new file mode 100644
index 0000000..45d3286
--- /dev/null
+++ b/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "stripe-webhook-integration",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node index.js",
+    "dev": "nodemon -x node index.js -ext js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "dotenv": "^16.4.7",
+    "express": "^4.21.2",
+    "stripe": "^17.5.0"
+  },
+  "devDependencies": {
+    "nodemon": "^3.1.9"
+  }
+}
diff --git a/public/payment-cancel.html b/public/payment-cancel.html
new file mode 100644
index 0000000..583db19
--- /dev/null
+++ b/public/payment-cancel.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Payment Cancelled</title>
+  <style>
+    body {
+      font-family: Arial, sans-serif;
+      margin: 0;
+      padding: 0;
+      background-color: #f5f5f5;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      height: 100vh;
+    }
+
+    .container {
+      text-align: center;
+      background: #fff;
+      padding: 20px;
+      border-radius: 8px;
+      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+    }
+
+    .btn {
+      display: inline-block;
+      margin-top: 20px;
+      padding: 10px 20px;
+      background-color: #dc3545;
+      color: #fff;
+      border: none;
+      border-radius: 4px;
+      text-decoration: none;
+      cursor: pointer;
+      font-size: 16px;
+    }
+
+    .btn:hover {
+      background-color: #c82333;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <h1>Payment Cancelled</h1>
+    <p>It seems like you cancelled the payment. If this was a mistake, you can try again.</p>
+    <a href="/purchase.html" class="btn">Try Again</a>
+  </div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/public/payment-success.html b/public/payment-success.html
new file mode 100644
index 0000000..075085d
--- /dev/null
+++ b/public/payment-success.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>Payment Successful</title>
+  <style>
+    body {
+      font-family: Arial, sans-serif;
+      margin: 0;
+      padding: 0;
+      background-color: #f5f5f5;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      height: 100vh;
+    }
+
+    .container {
+      text-align: center;
+      background: #fff;
+      padding: 20px;
+      border-radius: 8px;
+      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+    }
+
+    .btn {
+      display: inline-block;
+      margin-top: 20px;
+      padding: 10px 20px;
+      background-color: #28a745;
+      color: #fff;
+      border: none;
+      border-radius: 4px;
+      text-decoration: none;
+      cursor: pointer;
+      font-size: 16px;
+    }
+
+    .btn:hover {
+      background-color: #218838;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <h1>Payment Successful</h1>
+    <p>Thank you for your purchase! Your subscription is now active.</p>
+    <a href="/" class="btn">Go to Home</a>
+  </div>
+</body>
+
+</html>
\ No newline at end of file
diff --git a/public/purchase.html b/public/purchase.html
new file mode 100644
index 0000000..f8df45b
--- /dev/null
+++ b/public/purchase.html
@@ -0,0 +1,105 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>Purchase Plan</title>
+  <style>
+    body {
+      font-family: Arial, sans-serif;
+      margin: 0;
+      padding: 0;
+      background-color: #f5f5f5;
+      display: flex;
+      justify-content: center;
+      align-items: center;
+      height: 100vh;
+    }
+
+    .container {
+      text-align: center;
+      background: #fff;
+      padding: 20px;
+      border-radius: 8px;
+      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
+      max-width: 400px;
+    }
+
+    h1 {
+      font-size: 24px;
+      margin-bottom: 10px;
+    }
+
+    p {
+      font-size: 16px;
+      margin: 10px 0;
+    }
+
+    .price {
+      font-size: 20px;
+      font-weight: bold;
+      color: #007bff;
+    }
+
+    .btn {
+      display: inline-block;
+      margin-top: 20px;
+      padding: 10px 20px;
+      background-color: #007bff;
+      color: #fff;
+      border: none;
+      border-radius: 4px;
+      text-decoration: none;
+      cursor: pointer;
+      font-size: 16px;
+    }
+
+    .btn:hover {
+      background-color: #0056b3;
+    }
+  </style>
+</head>
+
+<body>
+  <div class="container">
+    <h1>Pro Plan Subscription</h1>
+    <p>Enjoy premium features including:</p>
+    <ul style="text-align: left; padding-left: 20px">
+      <li>Unlimited website scans</li>
+      <li>Advanced analytics dashboard</li>
+      <li>Priority customer support</li>
+      <li>License valid for 1 year</li>
+    </ul>
+    <p class="price">$199 USD</p>
+    <button id="checkout" class="btn" onclick="checkout()">Checkout</button>
+  </div>
+  <script>
+    async function checkout() {
+      // Create order by calling the server endpoint
+      try {
+        const response = await fetch("/create-payment-session", {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json"
+          },
+          body: JSON.stringify({
+            amount: 199,
+            currency: "usd"
+          })
+        });
+
+        const paymentSession = await response.json();
+        console.log("Payment session:", paymentSession);
+        alert("Redirecting to the payment page");
+        // open checkout page in new tab
+        window.open(paymentSession.url, "_blank");
+      } catch (error) {
+        console.error("Checkout error:", error);
+        alert("Something went wrong, please try again later");
+      }
+    }
+  </script>
+</body>
+
+</html>
\ No newline at end of file