feat: ✨ Add puppeteer endpoint

Author: RatulMaharaj

apps/api/package.json

@@ -7,7 +7,8 @@
 	},
 	"dependencies": {
 		"@hono/node-server": "^1.12.0",
-		"hono": "^4.5.4"
+		"hono": "^4.5.4",
+		"puppeteer": "^22.15.0"
 	},
 	"devDependencies": {
 		"@types/node": "^20.11.17",

apps/api/src/index.ts

@@ -1,10 +1,23 @@
 import { serve } from '@hono/node-server'
 import { Hono } from 'hono'
+import { csrf } from 'hono/csrf'
+
+import invoice from './invoice'
 
 const app = new Hono()
 
+// middleware
+app.use(
+  csrf({
+    origin: ['app.invoicelink.io', 'pay.invoicelink.io', "invoicelink.io"],
+  })
+)
+
+// mount routes 
+app.route('/invoice', invoice)
+
 app.get('/', (c) => {
-  return c.text('Hello Hono!')
+  return c.text('Hello from api.invoicelink.io!')
 })
 
 const port = 3000

apps/api/src/invoice.ts

@@ -0,0 +1,41 @@
+import puppeteer from 'puppeteer';
+import { Hono } from 'hono'
+
+const app = new Hono()
+
+const getBrowser = () => puppeteer.launch({ headless: true });
+
+app.get('/', async (c) => {
+	const {id, type, download} = c.req.queries()
+
+	let browser = null;
+
+	try {
+		browser = await getBrowser();
+		const page = await browser.newPage();
+
+		await page.goto(`https://app.invoicelink.io/invoice?id=${id}&type=${type}&download=${download}`);
+		const pdf = await page.pdf({
+			format: 'A4',
+			printBackground: true
+		});
+
+		return new Response(pdf, {
+			headers: {
+				'Content-Type': 'application/pdf',
+				'Content-Disposition': download ? `attachment; filename="invoice.pdf"` : `inline`
+			}
+		});
+	} catch (error: unknown) {
+		if (error instanceof Error) {
+			return c.json({ error: error.message });
+		}
+	} finally {
+		if (browser) {
+			browser.close();
+		}
+	}
+  return c.text('Hello from invoice!')
+})
+
+export default app