FROM ghcr.io/puppeteer/puppeteer:20.0.0 WORKDIR /app COPY package*.json ./ RUN npm ci COPY . .
const pdf = await page.pdf( format: 'A4', printBackground: true, margin: top: '20mm', bottom: '20mm', left: '15mm', right: '15mm' , ); NestJs Reportes Genera PDFs desde Node Full -Mega-
res.setHeader('Content-Type', 'application/pdf'); res.setHeader('Content-Disposition', 'attachment; filename=large-report.pdf'); FROM ghcr
A. Browser Pooling (avoid cold starts) import Browser from 'puppeteer'; export class BrowserPool private static instances: Browser[] = []; private static max = 5; margin: top: '20mm'
await page.close(); return Buffer.from(pdf); catch (error) this.logger.error(`PDF generation failed: $error.message`); throw new Error('Could not generate PDF');
async generateWithTimeout(data: any, timeoutMs = 30000) return Promise.race([ this.generateReport(data), new Promise((_, reject) => setTimeout(() => reject(new Error('PDF generation timeout')), timeoutMs) ), ]);
} For reports >50MB, stream directly to response: