Serve the API on the given listener until `shutdown` resolves, then drain in-flight requests before returning.

Serves metrics on a dedicated server at the given address. Spawns a background task and returns its handle.

Computes the `(contract, storage_slot)` pair for a specific `(owner, spender)` pair.

Fetches refundable orders from DB, validates on-chain, and submits batch refunds. Individual failures are logged and skipped.

Ensure that the onchain balances changed in accordance with the [`ab_order`].

Attaches the RPC correlation headers to the packet. A batched packet coalesces several calls, so the calls header lists every `method:id` pair and th

Applies a factor to the token amount.

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Returns the chain for the RPC connection.

Try to shorten the latest_blocks by detecting the reorg from previous event update. If no reorg can be detected (for example, when `handled_blocks` is

IPFS gateway behavior when a CID cannot be found is inconsistent and can be confusing: - The public ipfs.io gateway responds "504 Gateway Timeout" af

See <https://github.com/0xProject/protocol/blob/%400x/contracts-zero-ex%400.49.0/contracts/zero-ex/contracts/src/features/libs/LibNativeOrder.sol#L166

Returns the chain's chain ID

Build the settlement instruction list.

The postgres database in our CI has different datetime precision than the `DateTime` uses. This leads to issues comparing round-tripped data. Work aro

Recovers the owner of the specified signature. This method returns an error if there is an issue recovering an ECDSA signature, or `None` for on-chai

Reduce the sell amount of this order by the given amount.

Extracts the score from the response. Since response can contain multiple solutions, it takes the score from the first solution.

The id of the cached fast-path solution. Present only when the solution was successfully cached for a later `/settle`.

Set the solver fee.

Start a new proxy server with automatic failover between backends # Panics Panics if `backends` is empty. At least one backend URL is required.

Return the trades which fulfill non-liquidity auction orders. These are the orders placed by end users.

Clones self and returns an instance that captures metrics extended with the provided label.

Runs `body` with a freshly-started pool-indexer. The indexer is spawned before the closure runs, then `abort`ed and `await`ed after — so the port is f

Testing Trades with settlements

This function adjusts quote amounts to directly compare them with the order's limits, ensuring a meaningful comparison for potential price improvement

For a given checkpoint, append events to get a new checkpoint

If the token is ETH, return WETH, thereby converting it to erc20.

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Creates a new call builder using this contract instance's provider and address. Note that the call can be any function call, not just those defined i

Deploy mock V3 contracts and set up a pool with liquidity.

Returns the cached detection result for `(token, holder)`, running detection if not yet cached.

Encodes the settlement's order_trade as a tuple, as expected by the smart contract.

Set up a fast-path quote test: a fast-path solver quoting `ab_order`.

Fetches liquidity for the specified auction.

Fetches the current auction. Don't use this as a synchronization mechanism in tests because that is prone to race conditions which would make tests fl

Convert this wire trade into a domain trade, deriving the counterpart leg from the clearing prices.

Return the address lookup table at `key` for the v0 message compiler. # Requirements - The account must exist. - The address-lookup-table program mu

`keccak256(pad32(holder) ++ map_slot)` — the storage slot of `mapping(address => _)` entries in Solidity.