Noble <-> Ethereum Bridging (Typescript)

DepositForBurn instructions

1. Install required packages:

   npm install
   

2. (If needed) Obtain tokens from the faucet: https://faucet.circle.com/

3. Set up a .env file based on .env.example, filling in the MNEMONIC and ETH_MINT_RECIPIENT fields:

   MNEMONIC="word1 word2..."
   ETH_MINT_RECIPIENT=0x...
   

4. Run the depositForBurn script:

   npm run depositForBurn
   

The Noble testnet -> ETH Sepolia CCTP relayer should pick up these messages automatically. To avoid these being automatically picked up, all references to MsgDepositForBurn can be changed to MsgDepositForBurnWithCaller and a destinationCaller field should be added to msg.value below line 70.

ReceiveMessage instructions

1. Install required packages:

   npm install
   

2. Initiate a DepositForBurnWithCaller from ETH to Noble. If a regular DepositForBurn call is made, the relayer will automatically receive the message on Noble.

3. Fetch the attestation and message from Iris at https://iris-api-sandbox.circle.com/messages/{sourceDomain}/{txHash}.

4. Set up a .env file based on .env.example, filling in the MNEMONIC, ATTESTATION, and MESSAGE_HEX fields:

   MNEMONIC="word1 word2..."
   ATTESTATION=0x...
   MESSAGE_HEX=0x
   

5. Run the receiveMessage script:

   npm run receiveMessage