#099: Build Advanced Reporting Engine with Puppeteer and Cloud Storage Exports

[bakarezainab]

#099: Build Advanced Reporting Engine with Puppeteer and Cloud Storage Exports

Category: [BACKEND]
Difficulty: ● HARD
Tags: reporting, pdf, excel, audit, export

Description

Build a robust server-side reporting engine that can generate high-quality PDF and Excel reports for payroll history and audit logs. These reports are essential for organization-level compliance and accounting.

Advanced / Production Requirements (HARD Upgrade)

Build a reporting engine that compiles rich HTML/CSS templates into PDFs using headless Chrome (Puppeteer). Implement page numbers, headers/footers, and signature verification. Excel reports must be generated using streaming write protocols to prevent high memory usage on the container.

Acceptance Criteria

• Integrate pdfkit or puppeteer for professional PDF generation.
• Implement exceljs for multi-sheet Excel exports.
• Add report templating with CSS/HTML.
• Expose an API endpoint to download reports with custom date filters.
• Store generated reports in a secure file storage (e.g., S3 or local disk).
• Headless Chrome/Puppeteer integration for pixel-perfect PDF rendering.
• Streaming generation of Excel spreadsheets to maintain low memory profile.
• Support custom styling, layout injection, and headers/footers.