koczadly / nano-handoff-payment-server

Nano Handoff Payment Server

A Nano payment processor application which implements the new "Block Handoff" proof-of-concept.

This project is simply a proof of concept at this stage, and should not be used in production. Various features are missing, and the application has not been optimised or protected from potential race conditions.

This currently implements revision 17 of the specification.

TODO

• Implement websocket confirmation watcher for real-time updates
• Implement transactional and locking mechanisms
• Implement cancel method
• Add real-time callback feature (via HTTP or websocket?)
• Reduce database size by re-using account destinations; is this necessary?
• Convert transaction ID (block hash) to blob type for efficiency; Hibernate disallows AttributeConverter's on ID columns
• Order transactions list by process date

Running & deployment

• A reverse proxy (ie. Apache) should be operated in front of this server
  • The /api/ directory should be blocked (or restricted through authentication)
  • The /handoff directory must be exposed to remote connections, with SSL configured
• A local application.properties file must be configured before running the server

HTTP API

Still a work in progress, yet to be documented; see PaymentController class.