resolver protocol

[scarmuega]

Tx3 needs to interact with the blockchain for querying utxos, querying params and submitting transactions. Blockchain gateways tend to be server-side components with relatively heavy resource footprint. It's a good practice to split Tx3 clients (component that interfaces with the user) from the Tx3 resolver (backend component that has direct access to the blockchain).

To promote interoperability of Tx3 clients and servers, we define a common spec called TRP (transaction resolver protocol) for the exchange of messages between client and server components.