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Skimming the server

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Julien Lengrand-Lambert
2022-08-08 22:50:17 +02:00
parent 43b442eb5b
commit 576c379457
2 changed files with 1 additions and 152 deletions
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README.md Normal file
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[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/jlengrand/vanilla-js)

152
server.js
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@@ -1,12 +1,6 @@
const express = require("express"); const express = require("express");
const path = require("path"); const path = require("path");
const hbs = require("express-handlebars");
const dotenv = require("dotenv");
const morgan = require("morgan"); const morgan = require("morgan");
const { uuid } = require("uuidv4");
const { hmacValidator } = require('@adyen/api-library');
const { Client, Config, CheckoutAPI } = require("@adyen/api-library");
// init app // init app
const app = express(); const app = express();
@@ -19,157 +13,11 @@ app.use(express.urlencoded({ extended: true }));
// Serve client from build folder // Serve client from build folder
app.use(express.static(path.join(__dirname, "/public"))); app.use(express.static(path.join(__dirname, "/public")));
// enables environment variables by
// parsing the .env file and assigning it to process.env
dotenv.config({
path: "./.env",
});
// Adyen Node.js API library boilerplate (configuration, etc.)
const config = new Config();
config.apiKey = process.env.ADYEN_API_KEY;
const client = new Client({ config });
client.setEnvironment("TEST"); // change to LIVE for production
const checkout = new CheckoutAPI(client);
/* ################# API ENDPOINTS ###################### */
// Invoke /sessions endpoint
app.post("/api/sessions", async (req, res) => {
try {
// unique ref for the transaction
const orderRef = uuid();
// Allows for gitpod support
const localhost = req.get('host');
// const isHttps = req.connection.encrypted;
const protocol = req.socket.encrypted? 'https' : 'http';
// Ideally the data passed here should be computed based on business logic
const response = await checkout.sessions({
amount: { currency: "EUR", value: 1000 }, // value is 10€ in minor units
countryCode: "NL",
merchantAccount: process.env.ADYEN_MERCHANT_ACCOUNT, // required
reference: orderRef, // required: your Payment Reference
returnUrl: `${protocol}://${localhost}/api/handleShopperRedirect?orderRef=${orderRef}` // set redirect URL required for some payment methods
});
res.json(response);
} catch (err) {
console.error(`Error: ${err.message}, error code: ${err.errorCode}`);
res.status(err.statusCode).json(err.message);
}
});
// Handle all redirects from payment type
app.all("/api/handleShopperRedirect", async (req, res) => {
// Create the payload for submitting payment details
const redirect = req.method === "GET" ? req.query : req.body;
const details = {};
if (redirect.redirectResult) {
details.redirectResult = redirect.redirectResult;
} else if (redirect.payload) {
details.payload = redirect.payload;
}
try {
const response = await checkout.paymentsDetails({ details });
// Conditionally handle different result codes for the shopper
switch (response.resultCode) {
case "Authorised":
res.redirect("/result/success");
break;
case "Pending":
case "Received":
res.redirect("/result/pending");
break;
case "Refused":
res.redirect("/result/failed");
break;
default:
res.redirect("/result/error");
break;
}
} catch (err) {
console.error(`Error: ${err.message}, error code: ${err.errorCode}`);
res.redirect("/result/error");
}
});
/* ################# end API ENDPOINTS ###################### */
/* ################# CLIENT SIDE ENDPOINTS ###################### */
// Index (select a demo)
app.get("/", (req, res) => res.render("index")); app.get("/", (req, res) => res.render("index"));
// Cart (continue to checkout)
app.get("/preview", (req, res) =>
res.render("preview", {
type: req.query.type,
})
);
// Checkout page (make a payment)
app.get("/checkout", (req, res) =>
res.render("checkout", {
type: req.query.type,
clientKey: process.env.ADYEN_CLIENT_KEY
})
);
// Result page
app.get("/result/:type", (req, res) =>
res.render("result", {
type: req.params.type,
})
);
/* ################# end CLIENT SIDE ENDPOINTS ###################### */
/* ################# WEBHOOK ###################### */
app.post("/api/webhooks/notifications", async (req, res) => {
// YOUR_HMAC_KEY from the Customer Area
const hmacKey = process.env.ADYEN_HMAC_KEY;
const validator = new hmacValidator()
// Notification Request JSON
const notificationRequest = req.body;
const notificationRequestItems = notificationRequest.notificationItems
// Handling multiple notificationRequests
notificationRequestItems.forEach(function(notificationRequestItem) {
const notification = notificationRequestItem.NotificationRequestItem
// Handle the notification
if( validator.validateHMAC(notification, hmacKey) ) {
// Process the notification based on the eventCode
const merchantReference = notification.merchantReference;
const eventCode = notification.eventCode;
console.log('merchantReference:' + merchantReference + " eventCode:" + eventCode);
} else {
// invalid hmac: do not send [accepted] response
console.log("Invalid HMAC signature: " + notification);
res.status(401).send('Invalid HMAC signature');
}
});
res.send('[accepted]')
});
/* ################# end WEBHOOK ###################### */
/* ################# UTILS ###################### */
function getPort() { function getPort() {
return process.env.PORT || 9000; return process.env.PORT || 9000;
} }
/* ################# end UTILS ###################### */
// Start server // Start server
app.listen(getPort(), () => console.log(`Server started -> http://localhost:${getPort()}`)); app.listen(getPort(), () => console.log(`Server started -> http://localhost:${getPort()}`));