InstantLayer

The InstantLayer contract manages delegated signer access for instant actions. SYMM Frontier exposes the delegation reads as separate APIs: one reads the raw expiry timestamp from delegations, and one reads the contract’s computed active status from isDelegationActive.

Contract reference: SYMMIO perps-core v0.8.5 docs .

Reads

`getDelegationExpiry`

Read the raw expiry timestamp stored in the delegations mapping.


import { getDelegationExpiry } from "@symmio/trading-core";
 
const expiryTimestamp = await getDelegationExpiry(config, {
  account: "0xaccount...",
  delegate: "0xdelegate...",
  selector: "0x501e891f",
});

Parameters

Name	Type	Default	Notes
`account`	`Address`	required	Account that owns the delegation.
`delegate`	`Address`	required	Delegated signer being checked.
`selector`	`Hex`	required	Function selector as `bytes4`, for example `0x...`
`chainId`	`number?`	config default	Optional chain override.

Returns — bigint, the Unix timestamp in seconds.

`getIsDelegationActive`

Read whether the contract considers a delegation active.


import { getIsDelegationActive } from "@symmio/trading-core";
 
const isActive = await getIsDelegationActive(config, {
  account: "0xaccount...",
  delegate: "0xdelegate...",
  selector: "0x501e891f",
});

Parameters

Name	Type	Default	Notes
`account`	`Address`	required	Account that owns the delegation.
`delegate`	`Address`	required	Delegated signer being checked.
`selector`	`Hex`	required	Function selector as `bytes4`.
`chainId`	`number?`	config default	Optional chain override.

Returns — boolean.

Query Options

Use these when integrating with TanStack Query outside React:


import { getDelegationExpiryQueryOptions, getIsDelegationActiveQueryOptions } from "@symmio/trading-core";
 
const expiryOptions = getDelegationExpiryQueryOptions(config, {
  account,
  delegate,
  selector,
});
 
const activeOptions = getIsDelegationActiveQueryOptions(config, {
  account,
  delegate,
  selector,
});

GetDelegationExpiryOptions and GetIsDelegationActiveOptions require account, delegate, and selector. The factories do not accept missing read inputs and do not validate them inside queryFn.

The query-key builders still accept partial inputs:


import { getDelegationExpiryQueryKey, getIsDelegationActiveQueryKey } from "@symmio/trading-core";
 
getDelegationExpiryQueryKey({ account, delegate });
getIsDelegationActiveQueryKey({ account, delegate });

Partial keys are for cache matching and invalidation, not for calling the read query.

Write

`grantDelegation`

Grant a delegated signer access to one or more selectors until an expiry timestamp.


import { grantDelegation } from "@symmio/trading-core";
 
const hash = await grantDelegation(config, {
  account: { addr: account, isPartyB: false },
  delegatedSigner: delegate,
  selectors: ["0x501e891f"],
  expiryTimestamp: 1_766_000_000n,
});

Parameters

Name	Type	Notes
`account`	`InstantLayerAccount`	Account identity passed to the contract. PartyA/user accounts use `isPartyB: false`.
`delegatedSigner`	`Address`	Signer receiving delegated access.
`selectors`	`readonly Hex[]`	Function selectors to delegate.
`expiryTimestamp`	`bigint`	Unix timestamp in seconds.
`chainId`	`number?`	Optional chain override.

Returns — Hash.