isChainIdAllowed()

isChainIdAllowed(chainId, allowedChainIds?): boolean

Checks a chain ID against the allowedChainIds of a verification policy. Chain IDs must match exactly, so eip155:1 never allows solana:1 or a bare 1; the only exception is a Solana cluster, which matches under its name and its genesis-hash chain ID (see normalizeSolanaChainId).

Parameters

chainId

string

The CAIP-2 chain ID of a message or session.

allowedChainIds?

readonly string[]

The allowed CAIP-2 chain IDs. Missing or empty allows every chain.

Returns

boolean

true when the chain is allowed.

Example


isChainIdAllowed('solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1', ['solana:devnet']); // true
isChainIdAllowed('eip155:1', ['eip155:8453']); // false