Waiting for the cross-chain execution

Here’s what happens after you send the message:

1. Message Dispatch on Sepolia:

   • When sendMessageToChiado is called on the SepoliaSender contract, the message is dispatched through Yaho on Sepolia.

   • The message is sent with the targetChainId, threshold, reporters, and adapters, and the data (in this case, the message string).

2. Oracles and Relaying:

   • Hashi’s oracles pick up the message and relay it to Chiado.

   • The oracles validate the message and check the block headers for consensus.

3. Message Receipt and Callback on Chiado:

   • On Chiado, the Yaru contract receives the message and triggers the onMessage function on the ChiadoReceiver contract.

   • The callback validates the message by ensuring that the message is from the expected Yaru contract, the source chain, and the correct sender.

Example Scenario

• You deploy SepoliaSender on Sepolia and configure it with the appropriate Yaho contract and oracle parameters.

• You deploy ChiadoReceiver on Chiado to handle the incoming message and validate it against Hashi’s oracle system.

• When you call sendMessageToChiado from SepoliaSender, the message is dispatched to Chiado, where the callback function processes it and updates the state.