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Delete server.js
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server.js
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const express = require("express");
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const cors = require("cors");
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const puppeteer = require("puppeteer");
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const app = express();
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const PORT = process.env.PORT || 7860;
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// Middleware
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app.use(cors());
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app.use(express.json({ limit: "10mb" }));
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// Root endpoint - Health check
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app.get("/", (_req, res) => {
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res.json({
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status: "ok",
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message: "HTML to PDF API is running",
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version: "1.0.0",
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endpoints: {
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health: "GET / or GET /health",
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convert: "POST /api/html-to-pdf"
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},
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usage: {
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method: "POST",
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url: "/api/html-to-pdf",
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body: {
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html_code: "Your HTML content here",
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pdf_options: {
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format: "A4",
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printBackground: true,
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margin: {
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top: "10mm",
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right: "10mm",
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bottom: "10mm",
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left: "10mm"
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}
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}
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}
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}
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});
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});
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// Health check endpoint
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app.get("/health", (_req, res) => {
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res.json({
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status: "healthy",
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timestamp: new Date().toISOString(),
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uptime: process.uptime()
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});
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});
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// Main PDF conversion endpoint
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app.post("/api/html-to-pdf", async (req, res) => {
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let browser;
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const startTime = Date.now();
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try {
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const { html_code: htmlContent, pdf_options: pdfOptions } = req.body || {};
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// Validate input
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if (!htmlContent || !htmlContent.trim()) {
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return res.status(400).json({
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error: "html_content is required",
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success: false
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});
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}
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console.log(`[${new Date().toISOString()}] Starting PDF generation...`);
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// Launch browser with Puppeteer's bundled Chromium
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browser = await puppeteer.launch({
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args: [
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"--no-sandbox",
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"--disable-setuid-sandbox",
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"--disable-dev-shm-usage",
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"--disable-gpu",
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"--disable-software-rasterizer",
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"--disable-extensions",
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"--disable-background-networking",
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"--disable-default-apps",
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"--disable-sync",
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"--metrics-recording-only",
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"--mute-audio",
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"--no-first-run",
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"--single-process",
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"--disable-accelerated-2d-canvas"
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],
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headless: "new"
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});
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const page = await browser.newPage();
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// Set content
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await page.setContent(
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`<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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</head>
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<body>
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${htmlContent}
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</body>
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</html>`,
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{
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waitUntil: "networkidle0",
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timeout: 30000
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}
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);
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// Generate PDF with default options merged with user options
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const defaultPdfOptions = {
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format: "A4",
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printBackground: true,
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margin: {
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top: "10mm",
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right: "10mm",
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bottom: "10mm",
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left: "10mm"
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}
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};
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const pdfBuffer = await page.pdf({
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...defaultPdfOptions,
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...(pdfOptions || {})
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});
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await browser.close();
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browser = null;
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const processingTime = Date.now() - startTime;
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console.log(`[${new Date().toISOString()}] PDF generated successfully in ${processingTime}ms`);
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res.json({
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pdf_base64: pdfBuffer.toString("base64"),
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success: true,
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processing_time_ms: processingTime,
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pdf_size_bytes: pdfBuffer.length
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});
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} catch (err) {
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console.error(`[${new Date().toISOString()}] PDF Generation Error:`, err);
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if (browser) {
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try {
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await browser.close();
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} catch (closeErr) {
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console.error("Browser close error:", closeErr);
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}
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}
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res.status(500).json({
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error: "Failed to generate PDF",
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details: err.message,
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success: false
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});
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}
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});
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// 404 handler
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app.use((_req, res) => {
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res.status(404).json({
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error: "Endpoint not found",
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available_endpoints: [
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"GET /",
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"GET /health",
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"POST /api/html-to-pdf"
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]
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});
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});
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// Start server
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app.listen(PORT, "0.0.0.0", () => {
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console.log(`
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╔════════════════════════════════════════╗
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║ HTML to PDF API Server ║
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║ Status: Running ✅ ║
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║ Port: ${PORT} ║
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║ URL: http://0.0.0.0:${PORT} ║
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╚════════════════════════════════════════╝
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`);
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});
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// Graceful shutdown
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process.on('SIGTERM', () => {
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console.log('SIGTERM signal received: closing HTTP server');
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process.exit(0);
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});
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process.on('SIGINT', () => {
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console.log('SIGINT signal received: closing HTTP server');
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process.exit(0);
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});
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