Interactive Real-Time Sales Dashboard

I need an interactive dashboard that tracks our sales performance in real time. The display must support bar charts, pie charts, and line graphs so the team can switch views instantly during reviews. Data should refresh automatically, ensuring the figures for revenue, sales volume, and customer acquisition are always current without any manual reloads.

You will receive direct access to our sales data source—API or SQL endpoint—along with brand colours and font guidelines. Your task is to connect to that data, perform any light transformations, and present the visuals in a clean, responsive web interface. Feel free to recommend the best toolset: Power BI, Tableau, Grafana, or a custom React + D3 build are all acceptable if they meet the requirements for speed and easy browser sharing.

Deliverables
• Live dashboard accessible via URL or embeddable iframe
• Source files or repo with straightforward setup instructions
• Branding applied to match provided colour codes
• Short hand-off guide or video on extending metrics later

Acceptance criteria
• Bar, pie, and line views toggle seamlessly without page reload
• Every metric refreshes within 60 seconds of a change in the data source
• Revenue, sales volume, and customer acquisition figures mirror the live database after each refresh cycle

The ideal completion window is two weeks, though an earlier hand-over is welcome if quality remains high.