Web App with API Integration

I need a custom-built web application whose core task is straightforward programming logic, then wiring that logic to an external API. The overall flow and business rules are already mapped out; what’s missing is the actual code that turns those diagrams into a working, browser-based product.

Here is what matters most to me:

• Clean, well-structured code for the main web layer (framework is your choice, as long as it is widely supported and easy to maintain).
• A solid, fully documented API integration that handles authentication, error states, and data parsing gracefully.
• Clear instructions on how to deploy the finished app to a standard Linux server so I can reproduce the setup without surprises.

Right now I do not need e-commerce, social-networking, or heavy analytics modules; if the architecture remains flexible enough to add such components later, that would be a welcome plus.

Deliverables I expect on hand-off:
1. Source code in a public or private Git repository.
2. A short README covering environment setup, build commands, and configuration of the external API keys.
3. A brief demo (recorded or live) proving all major endpoints work end-to-end.

If that matches your skill set, let me know how you would approach the API layer, which web framework you prefer, and how quickly you can spin up a first prototype. I look forward to seeing your plan in action.