prepare_withdrawal

io.github.rabeles11/metalend · Verify this server

Build the EIP-712 typed-data payload to sign for withdrawing from a specific pool, without signing anything. Looks up the exact withdrawRequest domain/types/value MetaLend expects from your current balances, fills in amount and a short-lived deadline, and returns it ready to sign with your own wallet. Pass the resulting signature to submit_withdrawal. Omit `amount` (or pass "MAX") to withdraw the pool's entire balance — this uses the maxUint256 convention rather than the exact current balance, which avoids stale-balance/rounding failures. `chain` is required: the same pool contract address can exist on multiple chains (e.g. Aave reuses one address across Polygon/Arbitrum/Avalanche/Optimism), so poolContract alone cannot disambiguate a wallet holding balance in that pool on more than one of those chains. Also refuses to build typedData when the pool's live liquidity (see list_pools' poolLiquidity) does not exceed the amount being withdrawn (this also applies to MAX, using the pool's own balance) — the backend would reject the signed request either way, so this catches it before a wallet signs. A fixed on-behalf gas fee (see `fee` in the response, also available standalone via get_transaction_costs) is deducted from the withdrawn amount before it reaches your wallet — the response's `expectedReceivedAmountRaw` is what will actually arrive, not the full `amount` being withdrawn from the pool. Rate limited to 5 calls/minute per caller, no more than one call every 12s.