Bhairav One

Bhairav One is a merchant payment platform for shop owners. The first version focuses on secure login, QR collection, transaction history, merchant data, update control, legal pages, and a polished fintech user experience.

The goal is to launch a reliable and premium Version 1.0, then expand into analytics, inventory, staff management, reports, and other business tools.

• Create one elegant merchant platform for Bhairav Group.
• Keep the experience fast, secure, simple, and trustworthy.
• Build a scalable foundation for Android first, then iOS and web.
• Use one backend for all future modules and products.

lib/
├── core/
├── models/
├── services/
├── providers/
├── screens/
├── widgets/
├── routes/
├── themes/
├── utils/
├── constants/
└── main.dart

Keep UI and business logic separate. Build reusable components for buttons, cards, dialogs, bottom sheets, inputs, and loading states.

Airtable will store merchant data, transactions, activation codes, app settings, feature flags, app version, and notifications for Version 1.0.

Merchant Fields

• Merchant ID
• Store Name
• Owner Name
• Phone Number
• Email
• UPI ID
• Address
• GST Number
• Logo URL
• Status
• Created Date

Firebase OTP login will be used for secure merchant authentication. It keeps the login flow simple for shop owners and supports future upgrades like biometric login, Google login, and Apple login.

• Phone number OTP login
• Session management
• Auto login after trusted device
• Future biometric support

OneSignal will power app notifications, update alerts, maintenance notices, important announcements, and future merchant campaigns.

This keeps communication fast without requiring users to manually check for updates.

All app requests should go through a secure backend API. The app should never talk directly to Airtable or expose private keys in the client.

• Authentication validation
• Merchant data read/write
• QR generation support
• Version checking
• Notification configuration
• File upload handling

Use Bhairav hosting for file storage. Store merchant logos, QR images, receipts, PDFs, invoices, and supporting documents on your own server.

/uploads
/logos
/receipts
/documents
/invoices
/temp

• HTTPS only
• OTP login
• No secrets in app code
• Server-side validation
• Daily backup
• Error logging
• Audit logs
• Version enforcement when needed

The app will check the latest version on launch. If a newer version exists, it should show a soft update or force update message depending on the release type.

• Latest version
• Minimum supported version
• Force update flag
• Update notes
• Play Store link

• Privacy Policy
• Terms & Conditions
• Refund Policy
• Cancellation Policy
• Contact Us
• About Us

• OTP login works
• Merchant terminal works
• QR generation works
• Transaction storage works
• Version update check works
• Notifications work
• Legal pages open correctly

• Flutter build signed
• App icon and splash prepared
• Privacy policy published
• Terms published
• Play Console listing ready
• Internal testing completed
• Production release approved

Bhairav One should grow into a merchant operating system with modules for inventory, staff, analytics, reporting, and more.

• Write clean and readable code.
• Use reusable widgets.
• Keep business logic separate from UI.
• Use meaningful variable names.
• Comment only complex code.
• Optimize for performance.
• Never hardcode sensitive data.
• Always validate API responses.
• Follow Flutter best practices.

/api
/auth
/config
/controllers
/models
/routes
/uploads
/logos
/receipts
/documents
/utils
/logs
/backups

Bhairav One™

Product Development Blueprint

Prepared by Krish Jain

Version 1.0 planning document for the Bhairav One merchant application.