Send your first interchain message in under 5 minutes
This tutorial demonstrates how to:
$RECIPIENT: The address of the
TestRecipientcontract on the destination chain, left padded to a
bytes32. In our case:
- 2.Under the
Contracttab, find the
Write as Proxybutton.
- 3.Click on the
Connect to Web3button to connect your Wallet (i.e. Metamask). Make sure that you are on the correct network.
- 4.Expand the
- 5.For destination domain, enter
$DESTINATION_DOMAIN. You could use
137to send to mainnet Polygon, or see other Domain identifiers.
- 6.For the recipient address, enter
$RECIPIENT. Remember to make sure to zero-pad this to a
bytes32if you are using your own address. Alternatively, you can use
0x00000000000000000000000036FdA966CfffF8a9Cdc814f546db0e6378bFef35(our test recipient address).
- 7.For the message body, enter whatever you like! A string-to-hex converter website can help you write your message if you want to send a human-readable message. In the example below, we sent the "Hello World" string as
- 8.Submit the transaction via your wallet/Metamask
How to send an interchain message using Etherscan + Metamask
You can call
cast. Make sure that you have a valid RPC URL for the origin chain and a private key with which you can pay for gas.
cast send $MAILBOX_ADDRESS "dispatch(uint32,bytes32,bytes)" $DESTINATION_DOMAIN $RECIPIENT $(cast --from-utf8 "your message") --rpc-url $RPC_URL
For your transfer to be executed on the destination chain, you must Manually pay for interchain gas, using
100000for the gas amount