Xero Invoices Dashboard Integration

I have a Replit workspace running a small Node.js app with a PostgreSQL database, and I need it to connect to Xero via OAuth 2.0, pull my invoice data, and render the results in a clean, browser-based dashboard... (Budget: $250 - $750 AUD, Jobs: AngularJS, API Development, Frontend Development, JavaScript, Node.js, NoSQL Couch & Mongo, PostgreSQL, Web Development)