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GMP Demo

This document provides a step-by-step guide to execute GMP flow on the SUI network.

Prerequisites

  • Deploy gateway contract node sui/deploy-gateway.js --signers wallet
  • Deploy gas service contract node sui/deploy-contract.js GasService
  • Deploy test contract node sui/deploy-test.js

Usage

Send Command (Outgoing)

Send a messsage from SUI to the destination chain.

Example:

# node sui/gmp.js sendCall <destChain> <destContractAddress> <feeAmount> <payload>
node sui/gmp.js sendCall ethereum 0x6f24A47Fc8AE5441Eb47EFfC3665e70e69Ac3F05 0.1 0x1234

Note:

  • feeAmount is the amount of SUI coins to be sent to the destination chain. The amount is in full units. For example, 0.1 means 0.1 SUI coins.

Execute Command (Incoming)

Execute a message from the source chain at SUI application module.

  1. Approve the incoming message
# node sui/gateway.js approve --proof ...... <source> <messageId> <sourceAddress> <destinationId> <payloadHash>
node sui/gateway.js approve --proof wallet ethereum 0x32034b47cb29d162d9d803cc405356f4ac0ec07fe847ace431385fe8acf3e6e5-2 0x4F4495243837681061C4743b74B3eEdf548D56A5 0x6ce0d81b412abca2770eddb1549c9fcff721889c3aab1203dc93866db22ecc4b 0x56570de287d73cd1cb6092bb8fdee6173974955fdef345ae579ee9f475ea7432

Note:

  • destinationId is the channel id of test module. It can be retrieved from test module deployment output.
  • payloadHash is the keccak256 hash of the payload. The payloadHash in the example (0x565...7432) is the hash of 0x1234.
  1. Execute the incoming message

This command will execute the message to the deployed test contract.

# node sui/gmp.js execute <source> <messageId> <sourceAddress> <payload>

# Example
node sui/gmp.js execute ethereum 0x32034b47cb29d162d9d803cc405356f4ac0ec07fe847ace431385fe8acf3e6e5-2 0x4F4495243837681061C4743b74B3eEdf548D56A5 0x1234

This command will execute the message to the contract that associated with the given channelId

# node sui/gmp.js execute <source> <messageId> <sourceAddress> <payload> --channelId <channelId>

# Example
node sui/gmp.js execute ethereum 0x32034b47cb29d162d9d803cc405356f4ac0ec07fe847ace431385fe8acf3e6e5-2 0x4F4495243837681061C4743b74B3eEdf548D56A5 0x1234 --channelId 0xcd5d203ea2cf1139af83939e3f74114a31fe682cc90f73a0d2647956bc3e5acf

Note:

  • source, sourceAddress and messageId needed to be matched with the approve command.
  • payload must be associated with the payloadHash in the approve command.