A Sui deposit is a single programmable transaction block that calls deposit on the Hular Move package, carrying the quote hash and a Coin holding exactly the deposit amount. There is no approval step: coin ownership is authorized by the signature on the transaction itself. The package id is 0x297a37d4ba1590bbe849eee60cd346b10fc6d020fa39350405609e299bd1217f, returned as router_address on the quote. The funds land in the shared escrow object (0x44f67927e23f752c79ba83861b16b4a07b1a6a1fb1cf6c9282f6e55e56343ab0), returned as escrow by GetChains; both ids together are everything needed to build the deposit.

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The transaction block

  1. Collect the depositor’s coins of src_token and merge them if the balance is spread across several objects.
  2. Split off exactly amount_in.
  3. Call deposit with the escrow object, the 32-byte quote hash, and the split coin.
The type argument T is the full coin type of src_token. The only accepted token on Sui is native USDC, so src_token always equals bridge_token_src: there are no swap-first deposits and no native SUI deposits. Gasless deposits are not available on Sui.

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With the SDK

buildSuiDeposit paginates the depositor’s coins, merges and splits them, and assembles the move call. It returns a Transaction ready for a wallet to sign; the wallet estimates the gas budget.
Or let the adapter handle it, which is the same path the other chains take:
Sui deposits are always a single step.

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Confirmation

The transaction digest is the order’s source transaction hash. Sui checkpoints are final: the deposit is picked up as soon as its transaction lands in a checkpoint, and one confirmation is all that is ever required. Nothing else is submitted by the user. Move to Track an order.