Borrow phase events - Arc Docs

Loan operations dispatch phase events as they progress. Handlers registered through kit.on receive a payload with the phase state, so you can drive a progress UI or diagnose where an operation stopped.

Phases

Every loan operation dispatches events under the same set of phase names:

Phase	What happens	Fires for
`fetchParams`	The SDK call that returns the signed execution.	Every operation, except retries with a live signed execution
`approve`	The token approval to the adapter (collateral for `borrow`/`addCollateral`, USDC for `repay`/`closeLoan`/`withdrawCollateralRepayIfNeeded`).	Any operation that needs an allowance the wallet doesn’t already have
`setAuthorization`	The lending protocol manager grant and its matching revocation.	`borrow`, `closeLoan`, `withdrawCollateralRepayIfNeeded`
`execute`	The atomic batch that submits the operation onchain.	Every operation

Transaction hashes by phase

Not every phase reports a txHash:

execute: reports the batch’s txHash on success.
approve and setAuthorization: carry a txHash only when they submit their own transaction. If existing allowance or authorization already covers the pull, they reach success immediately with no hash.
fetchParams: never has a txHash.

A phase that stops at pending was prepared into a batch whose outcome the wallet never reported. Treat it as unknown and read the loan before you retry. For subscribing to phase events with kit.on, see Track operation progress.