ica_cctp_transfer.md

Valence ICA CCTP Transfer Library

The Valence ICA CCTP Transfer Library library allows remotely executing a CCTP transfer using a Valence interchain account on Noble Chain. It does that by remotely sending a MsgDepositForBurn to the ICS-27 ICA created by the Valence interchain account on Noble. It is typically used as part of a Valence Program. In that context, a Processor contract will be the main contract interacting with the Valence ICA CCTP Transfer Library.

High-level flow

---
title: ICA CCTP Transfer Library
---
graph LR
    subgraph Neutron
      P[Processor]
      L[ICA CCTP
      Transfer Library]
      I[Input Account]
      P -- 1)Transfer --> L
      L -- 2)Query ICA address --> I
      L -- 3)Do ICA MsgDepositForBurn --> I
    end

    subgraph Noble
      ICA[Interchain Account]
      I -- 4)Execute MsgDepositForBurn--> ICA
    end

Loading

Functions

Function	Parameters	Description
Transfer	-	Transfer funds with CCTP on Noble from the ICA created by the input_acount to a mint_recipient on a destination_domain_id

Configuration

The library is configured on instantiation via the LibraryConfig type.

pub struct LibraryConfig {
    // Address of the input account (Valence interchain account)
    pub input_addr: LibraryAccountType,
    // Amount that is going to be transferred
    pub amount: Uint128,
    // Denom that is going to be transferred
    pub denom: String,
    // Destination domain id
    pub destination_domain_id: u32,
    // This address is the bytes representation of the address (with 32 length and padded zeroes)
    // For more information, check https://docs.noble.xyz/cctp/mint#example
    pub mint_recipient: Binary,
}