anandadim/AccurateIntegrationApp — reverse-engineered prompt

Build me a simple web app for connecting to Accurate Online and pulling accounting data into a local PostgreSQL database.

I want a backend that handles the Accurate OAuth connection safely, fetches data like customers, items, sales invoices, and invoice details, then stores or caches it so the frontend can display it without calling Accurate directly. The frontend should be a clean Vue app where I can test the connection, choose or view a branch database, sync sales invoices, browse invoice lists, open invoice details with items, and see basic summary stats.

Please keep the setup practical for a small business user. Use environment variables for credentials, include clear run instructions, and make sure PostgreSQL is the main database. It should support the existing idea of multiple branches and be ready to expand later with scheduled syncing and CSV export, but don’t overbuild those yet.

Look up the current Accurate Online API docs if you need to.