Amazon Shift Booking Automation

I want a web-based system that talks directly to Amazon’s internal shift API so I can search, book and later modify my job shifts without opening the official app. The core features I need are:

• Real-time retrieval of available shifts.
• One-click booking that sends the request straight through the API (no screen-scraping).
• A modification endpoint so I can change start time, length or location of an already booked shift.

Running everything on Windows is a must because that’s where the service will be hosted; the backend stack is up to you as long as it installs cleanly on Windows and requires no Linux-only dependencies. The interface should be web-based—simple, responsive and accessible from any browser on the local network.

Please include:
• Secure authentication handling (cookies, tokens or whatever the Amazon API expects).
• Clear API documentation or a Postman collection so I can test each call myself.
• Setup instructions for a fresh Windows machine.

I will consider the job complete when I can open the web UI, log in with my Amazon credentials, see live shift listings, book one successfully and then modify that same shift through the interface with the change reflected in my Amazon account within seconds.