Feat: Web Provider RPC 🗣️

[teddyjfpender]

Describe changes

To communicate with zkApps, Pallad must be able to receive requests and provide back data; Pallad must be able to talk! It must do so by following a specific pattern. A good implementation of the injected provider means developers spend little time integrating a wallet Pallad, and users of Pallad have granular control over what information they do and do not provide when their wallet receives a request.

This implementation is modelled around EIP-1193 with the mina_ prefix instead of the eth_ prefix.

Preliminary Mina-specific Tasks:

• add versioning of API
• request method
  • mina_accounts RPC Method
  • mina_sign RPC Method
  • mina_signTransaction RPC Method
  • mina_signFields RPC Method
  • mina_signMessage RPC Method (done in mina_sign)
  • mina_getBalance RPC Method
  • mina_chainId RPC Method
  • mina_sendTransaction RPC Method
  • mina_createNullifier RPC Method
• enable method
• connect method
• disconnect method
• application listeners
  • on
  • once
  • removeListener
  • off
• Correct event emitting
  • accountsChanged
  • chainChanged
• Error handling
  • 4001
  • 4100
  • 4200
  • 4900
  • 4901
• Integrate into extension

Secondary Web3 Broad Tasks:

• Abstract over the MinaProvider to make a UniversalProvider for other ecosystems like Protoki, Zeko, Ethereum
• Add versioning

Music listened to during this PR:

• Idioteque, Radiohead

[teddyjfpender]

[mrcnk]

Closing this one as it was delivered in different Pull Request.