Abstract Interface: Chain<F>

Defined in: chain.ts:335

Works like an interface for a base Chain class, but provides implementation (which can be specialized) for some basic methods

Extended by

• AptosChain
• EVMChain
• SolanaChain
• SuiChain
• TONChain

Type Parameters

Type Parameter	Default type
F extends ChainFamily	ChainFamily

Indexable

[key: symbol]: () => string

Properties

apiClient

readonly apiClient: CCIPAPIClient | null

Defined in: chain.ts:339

CCIP API client (null if opted out)

---

apiRetryConfig

readonly apiRetryConfig: Required<ApiRetryConfig> | null

Defined in: chain.ts:341

Retry configuration for API fallback operations (null if API client is disabled)

---

logger

logger: Logger

Defined in: chain.ts:337

---

network

readonly network: NetworkInfo<F>

Defined in: chain.ts:336

Methods

destroy()?

optional destroy(): void | Promise<void>

Defined in: chain.ts:375

Cleanup method to release resources (e.g., close connections).

Returns

void | Promise<void>

---

estimateReceiveExecution()?

optional estimateReceiveExecution(opts: { message: { data?: BytesLike; destTokenAmounts?: readonly { amount: bigint; token: string; }[]; messageId: string; sender?: string; sourceChainSelector: bigint; }; offRamp: string; receiver: string; }): Promise<number>

Defined in: chain.ts:1347

Estimate ccipReceive execution cost (gas, computeUnits) for this dest

Parameters

Parameter	Type	Description
opts	{ message: { data?: BytesLike; destTokenAmounts?: readonly { amount: bigint; token: string; }[]; messageId: string; sender?: string; sourceChainSelector: bigint; }; offRamp: string; receiver: string; }	estimation options
opts.message	{ data?: BytesLike; destTokenAmounts?: readonly { amount: bigint; token: string; }[]; messageId: string; sender?: string; sourceChainSelector: bigint; }	-
opts.message.data?	BytesLike	-
opts.message.destTokenAmounts?	readonly { amount: bigint; token: string; }[]	-
opts.message.messageId	string	-
opts.message.sender?	string	-
opts.message.sourceChainSelector	bigint	-
opts.offRamp	string	-
opts.receiver	string	-

Returns

Promise<number>

estimated execution cost (gas or computeUnits)

---

execute()

abstract execute(opts: ExecuteOpts & { wallet: unknown; }): Promise<CCIPExecution>

Defined in: chain.ts:973

Execute messages in report in an offRamp.

Parameters

Parameter	Type	Description
opts	ExecuteOpts & { wallet: unknown; }	ExecuteOpts with chain-specific wallet to sign and send tx

Returns

Promise<CCIPExecution>

Promise resolving to transaction of the execution

Throws

CCIPWalletNotSignerError if wallet is not a valid signer

Throws

CCIPExecTxRevertedError if execution transaction reverts

Throws

CCIPMerkleRootMismatchError if merkle proof is invalid

Example

TypeScript

const input = await source.getExecutionInput({ request, verifications })
const receipt = await dest.execute({ offRamp, input, wallet })
console.log(`Executed: ${receipt.log.transactionHash}`)

Throws

CCIPWalletNotSignerError if wallet cannot sign transactions

Throws

CCIPExecTxNotConfirmedError if execution transaction fails to confirm

---

generateUnsignedExecute()

abstract generateUnsignedExecute(opts: ExecuteOpts & { payer: string; }): Promise<UnsignedTx[F]>

Defined in: chain.ts:948

Generate unsigned tx to manuallyExecute a message.

Parameters

Parameter	Type	Description
opts	ExecuteOpts & { payer: string; }	ExecuteOpts with payer address which will send the exec tx

Returns

Promise<UnsignedTx[F]>

Promise resolving to chain-family specific unsigned txs

Example

TypeScript

const unsignedTx = await dest.generateUnsignedExecute({
  offRamp: offRampAddress,
  input,
  payer: walletAddress,
})
// Sign and send with external wallet

---

generateUnsignedSendMessage()

abstract generateUnsignedSendMessage(opts: SendMessageOpts & { sender: string; }): Promise<UnsignedTx[F]>

Defined in: chain.ts:875

Generate unsigned txs for ccipSend'ing a message.

Parameters

Parameter	Type	Description
opts	SendMessageOpts & { sender: string; }	SendMessageOpts with sender address

Returns

Promise<UnsignedTx[F]>

Promise resolving to chain-family specific unsigned txs

Example

TypeScript

const unsignedTx = await chain.generateUnsignedSendMessage({
  router: routerAddress,
  destChainSelector: destSelector,
  message: { receiver: '0x...', data: '0x1337' },
  sender: walletAddress,
})
// Sign and send with external wallet

---

getBalance()

abstract getBalance(opts: GetBalanceOpts): Promise<bigint>

Defined in: chain.ts:826

Query token balance for an address.

Parameters

Parameter	Type	Description
opts	GetBalanceOpts	Balance query options

Returns

Promise<bigint>

Token balance information including raw and formatted values

Throws

CCIPNotImplementedError if chain family doesn't support this method

Examples

TypeScript

const balance = await chain.getBalance({ holder: '0x123...' })
console.log(`Native balance: ${balance}`) // balance in wei

TypeScript

const balance = await chain.getBalance({
  holder: '0x123...',
  token: '0xLINK...'
})
console.log(`LINK balance: ${balance}`) // balance in smallest units

---

getBlockTimestamp()

abstract getBlockTimestamp(block: number | "finalized"): Promise<number>

Defined in: chain.ts:397

Fetch the timestamp of a given block.

Parameters

Parameter	Type	Description
block	number | "finalized"	Positive block number, negative finality depth, or 'finalized' tag

Returns

Promise<number>

Promise resolving to timestamp of the block, in seconds

Throws

CCIPBlockNotFoundError if block does not exist

Example

TypeScript

const chain = await EVMChain.fromUrl('https://eth-mainnet.example.com')
const timestamp = await chain.getBlockTimestamp('finalized')
console.log(`Finalized at: ${new Date(timestamp * 1000).toISOString()}`)

---

getExecutionInput()

getExecutionInput(opts: { request: CCIPRequest; verifications: CCIPVerifications; } & Pick<LogFilter, "page">): Promise<ExecutionInput>

Defined in: chain.ts:629

Fetch input data needed for executing messages Should be called on the source instance

Parameters

Parameter	Type	Description
opts	{ request: CCIPRequest; verifications: CCIPVerifications; } & Pick<LogFilter, "page">	getExecutionInput options containing request and verifications

Returns

Promise<ExecutionInput>

input payload to be passed to [[execute]]

See

execute - method to execute a message

---

getExecutionReceipts()

getExecutionReceipts(opts: { messageId?: string; offRamp: string; sourceChainSelector?: bigint; verifications?: CCIPVerifications; } & Pick<LogFilter, "startBlock" | "startTime" | "watch" | "page">): AsyncIterableIterator<CCIPExecution>

Defined in: chain.ts:1072

Default/generic implementation of getExecutionReceipts. Yields execution receipts for a given offRamp.

Parameters

Parameter	Type	Description
opts	{ messageId?: string; offRamp: string; sourceChainSelector?: bigint; verifications?: CCIPVerifications; } & Pick<LogFilter, "startBlock" | "startTime" | "watch" | "page">	getExecutionReceipts options

Returns

AsyncIterableIterator<CCIPExecution>

Async generator of CCIPExecution receipts

Example

TypeScript

for await (const exec of dest.getExecutionReceipts({
  offRamp: offRampAddress,
  messageId: request.message.messageId,
  startBlock: commit.log.blockNumber,
})) {
  console.log(`State: ${exec.receipt.state}`)
  if (exec.receipt.state === ExecutionState.Success) break
}

---

getFee()

abstract getFee(opts: Omit<SendMessageOpts, "approveMax">): Promise<bigint>

Defined in: chain.ts:857

Fetch the current fee for a given intended message.

Parameters

Parameter	Type	Description
opts	Omit<SendMessageOpts, "approveMax">	SendMessageOpts without approveMax

Returns

Promise<bigint>

Fee amount in the feeToken's smallest units

Example

TypeScript

const fee = await chain.getFee({
  router: routerAddress,
  destChainSelector: destSelector,
  message: { receiver: '0x...', data: '0x' },
})
console.log(`Fee: ${fee} wei`)

---

getFeeTokens()

abstract getFeeTokens(router: string): Promise<Record<string, TokenInfo>>

Defined in: chain.ts:1298

Fetch list and info of supported feeTokens.

Parameters

Parameter	Type	Description
router	string	Router address on this chain

Returns

Promise<Record<string, TokenInfo>>

Promise resolving to mapping of token addresses to TokenInfo objects

Example

TypeScript

const feeTokens = await chain.getFeeTokens(routerAddress)
for (const [addr, info] of Object.entries(feeTokens)) {
  console.log(`${info.symbol}: ${addr}`)
}

---

getLaneLatency()

getLaneLatency(destChainSelector: bigint): Promise<LaneLatencyResponse>

Defined in: chain.ts:1046

Fetches estimated lane latency to a destination chain. Uses this chain's selector as the source.

Parameters

Parameter	Type	Description
destChainSelector	bigint	Destination CCIP chain selector (bigint)

Returns

Promise<LaneLatencyResponse>

Promise resolving to LaneLatencyResponse containing:

• lane.sourceNetworkInfo - Source chain metadata (name, selector, chainId)
• lane.destNetworkInfo - Destination chain metadata
• lane.routerAddress - Router contract address on source chain
• totalMs - Estimated delivery time in milliseconds

Throws

CCIPApiClientNotAvailableError if apiClient was disabled (set to null)

Throws

CCIPHttpError if API request fails (network error, 4xx, 5xx status)

Remarks

Each call makes a fresh API request. Consider caching results if making frequent calls for the same lane.

Example

TypeScript

const chain = await EVMChain.fromUrl('https://eth-mainnet.example.com')
try {
  const latency = await chain.getLaneLatency(4949039107694359620n) // Arbitrum
  console.log(`Estimated delivery: ${Math.round(latency.totalMs / 60000)} minutes`)
  console.log(`Router: ${latency.lane.routerAddress}`)
} catch (err) {
  if (err instanceof CCIPHttpError) {
    console.error(`API error: ${err.context.apiErrorCode}`)
  }
}

---

getLogs()

abstract getLogs(opts: LogFilter): AsyncIterableIterator<ChainLog>

Defined in: chain.ts:505

An async generator that yields logs based on the provided options.

Parameters

Parameter	Type	Description
opts	LogFilter	Options object containing: - startBlock: if provided, fetch and generate logs forward starting from this block; otherwise, returns logs backwards in time from endBlock; optionally, startTime may be provided to fetch logs forward starting from this time - startTime: instead of a startBlock, a start timestamp may be provided; if either is provided, fetch logs forward from this starting point; otherwise, backwards - endBlock: if omitted, use latest block; can be a block number, 'latest', 'finalized' or negative finality block depth - endBefore: optional hint signature for end of iteration, instead of endBlock - address: if provided, fetch logs for this address only (may be required in some networks/implementations) - topics: if provided, fetch logs for these topics only; if string[], it's assumed to be a list of topic0s (i.e. string[] or string[][0], event_ids); some networks/implementations may not be able to filter topics other than topic0s, so one may want to assume those are optimization hints, instead of hard filters, and verify results - page: if provided, try to use this page/range for batches - watch: true or cancellation promise, getLogs continuously after initial fetch

Returns

AsyncIterableIterator<ChainLog>

An async iterable iterator of logs.

Throws

CCIPLogsWatchRequiresFinalityError if watch mode is used without a finality endBlock tag

Throws

CCIPLogsWatchRequiresStartError if watch mode is used without startBlock or startTime

Throws

CCIPLogsAddressRequiredError if address is required but not provided (chain-specific)

---

getMessageById()

getMessageById(messageId: string, _opts?: { onRamp?: string; page?: number; }): Promise<CCIPRequest<CCIPVersion>>

Defined in: chain.ts:581

Fetch a CCIP message by its unique message ID.

Parameters

Parameter	Type	Description
messageId	string	The unique message ID (0x + 64 hex chars)
_opts?	{ onRamp?: string; page?: number; }	Optional: onRamp hint for non-EVM chains
_opts.onRamp?	string	-
_opts.page?	number	-

Returns

Promise<CCIPRequest<CCIPVersion>>

CCIPRequest with metadata populated from API

Remarks

Uses the CCIP API to retrieve message details. The returned request includes a metadata field with API-specific information.

Example

TypeScript

const request = await chain.getMessageById(messageId)
console.log(`Sender: ${request.message.sender}`)

if (request.metadata) {
  console.log(`Status: ${request.metadata.status}`)
  if (request.metadata.deliveryTime) {
    console.log(`Delivered in ${request.metadata.deliveryTime}ms`)
  }
}

Throws

CCIPApiClientNotAvailableError if API disabled

Throws

CCIPMessageIdNotFoundError if message not found

Throws

CCIPOnRampRequiredError if onRamp is required but not provided

Throws

CCIPHttpError if API request fails

---

getMessagesInBatch()?

optional getMessagesInBatch<R>(request: R, range: Pick<CommitReport, "minSeqNr" | "maxSeqNr">, opts?: { page?: number; }): Promise<R["message"][]>

Defined in: chain.ts:611

Fetches all CCIP messages contained in a given commit batch. To be implemented for chains supporting CCIPVersion <= v1.6.0

Type Parameters

Type Parameter
R extends { lane: Lane<CCIPVersion>; log: { } & { } & { }; message: { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; }; }

Parameters

Parameter	Type	Description
request	R	CCIPRequest to fetch batch for
range	Pick<CommitReport, "minSeqNr" | "maxSeqNr">	batch range { minSeqnr, maxSeqNr }, e.g. from [[CommitReport]]
opts?	{ page?: number; }	Optional parameters (e.g., page for pagination width)
opts.page?	number	-

Returns

Promise<R["message"][]>

Array of messages in the batch

Throws

CCIPMessageBatchIncompleteError if not all messages in range could be fetched

Example

TypeScript

const verifications = await dest.getVerifications({ offRamp, request })
const messages = await source.getMessagesInBatch(request, verifications.report)
console.log(`Found ${messages.length} messages in batch`)

---

getMessagesInTx()

getMessagesInTx(tx: string | ChainTransaction): Promise<CCIPRequest<CCIPVersion>[]>

Defined in: chain.ts:525

Fetch all CCIP requests in a transaction.

Parameters

Parameter	Type	Description
tx	string | ChainTransaction	ChainTransaction or txHash to fetch requests from

Returns

Promise<CCIPRequest<CCIPVersion>[]>

Promise resolving to CCIP messages in the transaction (at least one)

Throws

CCIPTransactionNotFoundError if transaction does not exist

Throws

CCIPMessageNotFoundInTxError if no CCIPSendRequested events in tx

Example

TypeScript

const chain = await EVMChain.fromUrl('https://eth-mainnet.example.com')
const requests = await chain.getMessagesInTx('0xabc123...')
for (const req of requests) {
  console.log(`Message ID: ${req.message.messageId}`)
}

---

getNativeTokenForRouter()

abstract getNativeTokenForRouter(router: string): Promise<string>

Defined in: chain.ts:731

Get the native token address for a Router.

Parameters

Parameter	Type	Description
router	string	Router contract address

Returns

Promise<string>

Promise resolving to native token address (usually wrapped)

Example

TypeScript

const weth = await chain.getNativeTokenForRouter(routerAddress)
console.log(`Wrapped native: ${weth}`)

---

getOffchainTokenData()

getOffchainTokenData(request: { message: { ccipReceiveGasLimit: number; ccvAndExecutorHash: string; data: string; destBlob: string; destChainSelector: bigint; encodedMessage: string; executionGasLimit: number; feeToken: string; feeTokenAmount: bigint; finality: number; messageId: string; messageNumber: bigint; offRampAddress: string; onRampAddress: string; receipts: readonly { destBytesOverhead: bigint; destGasLimit: bigint; extraArgs: string; feeTokenAmount: bigint; issuer: string; }[]; receiver: string; sender: string; sequenceNumber: bigint; sourceChainSelector: bigint; tokenAmountBeforeTokenPoolFees: bigint; tokenAmounts: readonly TokenTransferV1[]; verifierBlobs: readonly string[]; } | { data: string; feeToken: string; feeTokenAmount: bigint; gasLimit: bigint; messageId: string; nonce: bigint; receiver: string; sender: string; sequenceNumber: bigint; sourceChainSelector: bigint; sourceTokenData: readonly string[]; strict: boolean; tokenAmounts: readonly { amount: bigint; token: string; }[]; } | CCIPMessage_V1_5_EVM | CCIPMessage_V1_6_EVM | CCIPMessage_V1_6_Solana | CCIPMessage_V1_6_Sui; tx: { hash: string; }; }): Promise<OffchainTokenData[]>

Defined in: chain.ts:926

Fetch supported offchain token data for a request from this network. It logs but doesn't throw in case it can't fetch attestation, as the transfers may not be from the expected attestation providers. It returns default offchainData=undefined for those.

Parameters

Parameter	Type	Description
request	{ message: { ccipReceiveGasLimit: number; ccvAndExecutorHash: string; data: string; destBlob: string; destChainSelector: bigint; encodedMessage: string; executionGasLimit: number; feeToken: string; feeTokenAmount: bigint; finality: number; messageId: string; messageNumber: bigint; offRampAddress: string; onRampAddress: string; receipts: readonly { destBytesOverhead: bigint; destGasLimit: bigint; extraArgs: string; feeTokenAmount: bigint; issuer: string; }[]; receiver: string; sender: string; sequenceNumber: bigint; sourceChainSelector: bigint; tokenAmountBeforeTokenPoolFees: bigint; tokenAmounts: readonly TokenTransferV1[]; verifierBlobs: readonly string[]; } | { data: string; feeToken: string; feeTokenAmount: bigint; gasLimit: bigint; messageId: string; nonce: bigint; receiver: string; sender: string; sequenceNumber: bigint; sourceChainSelector: bigint; sourceTokenData: readonly string[]; strict: boolean; tokenAmounts: readonly { amount: bigint; token: string; }[]; } | CCIPMessage_V1_5_EVM | CCIPMessage_V1_6_EVM | CCIPMessage_V1_6_Solana | CCIPMessage_V1_6_Sui; tx: { hash: string; }; }	CCIP request, with tx.hash and message
request.message	{ ccipReceiveGasLimit: number; ccvAndExecutorHash: string; data: string; destBlob: string; destChainSelector: bigint; encodedMessage: string; executionGasLimit: number; feeToken: string; feeTokenAmount: bigint; finality: number; messageId: string; messageNumber: bigint; offRampAddress: string; onRampAddress: string; receipts: readonly { destBytesOverhead: bigint; destGasLimit: bigint; extraArgs: string; feeTokenAmount: bigint; issuer: string; }[]; receiver: string; sender: string; sequenceNumber: bigint; sourceChainSelector: bigint; tokenAmountBeforeTokenPoolFees: bigint; tokenAmounts: readonly TokenTransferV1[]; verifierBlobs: readonly string[]; } | { data: string; feeToken: string; feeTokenAmount: bigint; gasLimit: bigint; messageId: string; nonce: bigint; receiver: string; sender: string; sequenceNumber: bigint; sourceChainSelector: bigint; sourceTokenData: readonly string[]; strict: boolean; tokenAmounts: readonly { amount: bigint; token: string; }[]; } | CCIPMessage_V1_5_EVM | CCIPMessage_V1_6_EVM | CCIPMessage_V1_6_Solana | CCIPMessage_V1_6_Sui	-
request.tx	{ hash: string; }	Transaction that emitted the request.
request.tx.hash	string	Transaction hash.

Returns

Promise<OffchainTokenData[]>

Promise resolving to array with one offchain token data for each token transfer

Example

TypeScript

const offchainData = await source.getOffchainTokenData(request)
// Use in execution report

---

getOffRampsForRouter()

abstract getOffRampsForRouter(router: string, sourceChainSelector: bigint): Promise<string[]>

Defined in: chain.ts:746

Fetch the OffRamps allowlisted in a Router. Used to discover OffRamp connected to an OnRamp.

Parameters

Parameter	Type	Description
router	string	Router contract address
sourceChainSelector	bigint	Source chain selector

Returns

Promise<string[]>

Promise resolving to array of OffRamp addresses

Example

TypeScript

const offRamps = await dest.getOffRampsForRouter(routerAddress, sourceSelector)
console.log(`Found ${offRamps.length} offRamp(s)`)

---

getOnRampForRouter()

abstract getOnRampForRouter(router: string, destChainSelector: bigint): Promise<string>

Defined in: chain.ts:762

Fetch the OnRamp registered in a Router for a destination chain.

Parameters

Parameter	Type	Description
router	string	Router contract address
destChainSelector	bigint	Destination chain selector

Returns

Promise<string>

Promise resolving to OnRamp address

Throws

CCIPLaneNotFoundError if no lane exists to destination

Example

TypeScript

const onRamp = await source.getOnRampForRouter(routerAddress, destSelector)
console.log(`OnRamp: ${onRamp}`)

---

getOnRampsForOffRamp()

abstract getOnRampsForOffRamp(offRamp: string, sourceChainSelector: bigint): Promise<string[]>

Defined in: chain.ts:777

Fetch the OnRamps addresses set in OffRamp config. Used to discover OffRamp connected to an OnRamp.

Parameters

Parameter	Type	Description
offRamp	string	OffRamp contract address
sourceChainSelector	bigint	Source chain selector

Returns

Promise<string[]>

Promise resolving to OnRamps addresses

Example

TypeScript

const [onRamp] = await dest.getOnRampsForOffRamp(offRampAddress, sourceSelector)
console.log(`OnRamp: ${onRamp}`)

---

getRegistryTokenConfig()

abstract getRegistryTokenConfig(registry: string, token: string): Promise<RegistryTokenConfig>

Defined in: chain.ts:1178

Fetch token configuration from a TokenAdminRegistry.

Parameters

Parameter	Type	Description
registry	string	TokenAdminRegistry contract address.
token	string	Token address to query.

Returns

Promise<RegistryTokenConfig>

RegistryTokenConfig containing administrator and pool information.

Remarks

The TokenAdminRegistry is a contract that tracks token administrators and their associated pools. Each token has an administrator who can update pool configurations.

Example

TypeScript

const config = await chain.getRegistryTokenConfig(registryAddress, tokenAddress)
console.log(`Administrator: ${config.administrator}`)
if (config.tokenPool) {
  console.log(`Pool: ${config.tokenPool}`)
}

Throws

CCIPTokenNotInRegistryError if token is not registered.

---

getRouterForOffRamp()

abstract getRouterForOffRamp(offRamp: string, sourceChainSelector: bigint): Promise<string>

Defined in: chain.ts:718

Fetch the Router address set in OffRamp config.

Parameters

Parameter	Type	Description
offRamp	string	OffRamp contract address
sourceChainSelector	bigint	Source chain selector

Returns

Promise<string>

Promise resolving to Router address

Throws

CCIPContractTypeInvalidError if address is not an OffRamp

Example

TypeScript

const router = await chain.getRouterForOffRamp(offRampAddress, sourceSelector)
console.log(`Router: ${router}`)

---

getRouterForOnRamp()

abstract getRouterForOnRamp(onRamp: string, destChainSelector: bigint): Promise<string>

Defined in: chain.ts:702

Fetch the Router address set in OnRamp config. Used to discover OffRamp connected to OnRamp.

Parameters

Parameter	Type	Description
onRamp	string	OnRamp contract address
destChainSelector	bigint	Destination chain selector

Returns

Promise<string>

Promise resolving to Router address

Throws

CCIPContractTypeInvalidError if address is not an OnRamp

Example

TypeScript

const router = await chain.getRouterForOnRamp(onRampAddress, destSelector)
console.log(`Router: ${router}`)

---

getSupportedTokens()

abstract getSupportedTokens(address: string, opts?: { page?: number; }): Promise<string[]>

Defined in: chain.ts:1155

List tokens supported by given TokenAdminRegistry contract.

Parameters

Parameter	Type	Description
address	string	Usually TokenAdminRegistry, but chain may support receiving Router, OnRamp, etc.
opts?	{ page?: number; }	Optional parameters (e.g., page for pagination range)
opts.page?	number	-

Returns

Promise<string[]>

Promise resolving to array of supported token addresses

Example

TypeScript

const tokens = await chain.getSupportedTokens(registryAddress)
console.log(`${tokens.length} tokens supported`)

---

getTokenAdminRegistryFor()

abstract getTokenAdminRegistryFor(address: string): Promise<string>

Defined in: chain.ts:840

Fetch TokenAdminRegistry configured in a given OnRamp, Router, etc. Needed to map a source token to its dest counterparts.

Parameters

Parameter	Type	Description
address	string	Contract address (OnRamp, Router, etc.)

Returns

Promise<string>

Promise resolving to TokenAdminRegistry address

Example

TypeScript

const registry = await chain.getTokenAdminRegistryFor(onRampAddress)
console.log(`Registry: ${registry}`)

---

getTokenForTokenPool()

abstract getTokenForTokenPool(tokenPool: string): Promise<string>

Defined in: chain.ts:790

Fetch the TokenPool's token/mint.

Parameters

Parameter	Type	Description
tokenPool	string	TokenPool address

Returns

Promise<string>

Promise resolving to token or mint address

Example

TypeScript

const token = await chain.getTokenForTokenPool(tokenPoolAddress)
console.log(`Token: ${token}`)

---

getTokenInfo()

abstract getTokenInfo(token: string): Promise<TokenInfo>

Defined in: chain.ts:803

Fetch token metadata.

Parameters

Parameter	Type	Description
token	string	Token address

Returns

Promise<TokenInfo>

Promise resolving to token symbol, decimals, and optionally name

Example

TypeScript

const info = await chain.getTokenInfo(tokenAddress)
console.log(`${info.symbol}: ${info.decimals} decimals`)

---

getTokenPoolConfig()

abstract getTokenPoolConfig(tokenPool: string): Promise<TokenPoolConfig>

Defined in: chain.ts:1206

Fetch configuration of a token pool.

Parameters

Parameter	Type	Description
tokenPool	string	Token pool contract address.

Returns

Promise<TokenPoolConfig>

TokenPoolConfig containing token, router, and version info.

Remarks

Return type varies by chain:

• EVM: typeAndVersion is always present (required)
• Solana: Includes extra tokenPoolProgram field
• Aptos: Standard fields only
• Sui/TON: Throws CCIPNotImplementedError

Example

TypeScript

// Use instanceof to narrow the chain type
if (chain instanceof SolanaChain) {
  const config = await chain.getTokenPoolConfig(poolAddress)
  console.log(config.tokenPoolProgram) // TypeScript knows this exists!
} else if (chain instanceof EVMChain) {
  const config = await chain.getTokenPoolConfig(poolAddress)
  console.log(config.typeAndVersion) // TypeScript knows this is required!
}

Throws

CCIPNotImplementedError on Sui or TON chains

---

getTokenPoolRemote()

getTokenPoolRemote(tokenPool: string, remoteChainSelector: bigint): Promise<TokenPoolRemote>

Defined in: chain.ts:1271

Fetch remote chain configuration for a token pool for a specific destination.

Parameters

Parameter	Type	Description
tokenPool	string	Token pool address on the current chain.
remoteChainSelector	bigint	Chain selector of the desired remote chain.

Returns

Promise<TokenPoolRemote>

TokenPoolRemote config for the specified remote chain.

Remarks

Convenience wrapper around getTokenPoolRemotes that returns a single configuration instead of a Record. Use this when you need configuration for a specific destination chain.

Example

TypeScript

const arbitrumSelector = 4949039107694359620n
const remote = await chain.getTokenPoolRemote(poolAddress, arbitrumSelector)
console.log(`Remote token: ${remote.remoteToken}`)
console.log(`Remote pools: ${remote.remotePools.join(', ')}`)

Throws

CCIPTokenPoolChainConfigNotFoundError if no configuration found for the specified remote chain.

---

getTokenPoolRemotes()

abstract getTokenPoolRemotes(tokenPool: string, remoteChainSelector?: bigint): Promise<Record<string, TokenPoolRemote>>

Defined in: chain.ts:1246

Fetch remote chain configurations for a token pool.

Parameters

Parameter	Type	Description
tokenPool	string	Token pool address on the current chain.
remoteChainSelector?	bigint	Optional chain selector to filter results to a single destination.

Returns

Promise<Record<string, TokenPoolRemote>>

Record where keys are chain names (e.g., "ethereum-mainnet") and values are TokenPoolRemote configs.

Remarks

A token pool maintains configurations for each destination chain it supports. The returned Record maps chain names to their respective configurations.

Examples

TypeScript

const remotes = await chain.getTokenPoolRemotes(poolAddress)
// Returns: {
//   "ethereum-mainnet": { remoteToken: "0x...", remotePools: [...], ... },
//   "ethereum-mainnet-arbitrum-1": { remoteToken: "0x...", remotePools: [...], ... },
//   "solana-mainnet": { remoteToken: "...", remotePools: [...], ... }
// }

// Access a specific chain's config
const arbConfig = remotes['ethereum-mainnet']
console.log(`Remote token: ${arbConfig.remoteToken}`)

TypeScript

import { networkInfo } from '@chainlink/ccip-sdk'

const arbitrumSelector = 4949039107694359620n
const remotes = await chain.getTokenPoolRemotes(poolAddress, arbitrumSelector)
// Returns only: { "arbitrum-mainnet": { ... } }

const chainName = networkInfo(arbitrumSelector).name
const config = remotes[chainName]

Throws

CCIPTokenPoolChainConfigNotFoundError if remoteChainSelector is specified but not configured.

---

getTransaction()

abstract getTransaction(hash: string): Promise<ChainTransaction>

Defined in: chain.ts:419

Fetch a transaction by its hash.

Parameters

Parameter	Type	Description
hash	string	Transaction hash

Returns

Promise<ChainTransaction>

Promise resolving to generic transaction details

Throws

CCIPTransactionNotFoundError if transaction does not exist (transient)

Example

TypeScript

const chain = await EVMChain.fromUrl('https://eth-mainnet.example.com')
try {
  const tx = await chain.getTransaction('0xabc123...')
  console.log(`Block: ${tx.blockNumber}, Timestamp: ${tx.timestamp}`)
} catch (err) {
  if (err instanceof CCIPTransactionNotFoundError && err.isTransient) {
    // Transaction may be pending
  }
}

---

getVerifications()

getVerifications(opts: { offRamp: string; request: { lane: Lane<CCIPVersion>; message: { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } & { messageId: string; } | { messageId: string; } | { messageId: string; } | { messageId: string; } | { messageId: string; } | { messageId: string; }; tx: { timestamp: number; }; }; } & Pick<LogFilter, "startBlock" | "watch" | "page">): Promise<CCIPVerifications>

Defined in: chain.ts:998

Look for a CommitReport at dest for given CCIP request. May be specialized by some subclasses.

Parameters

Parameter	Type	Description
opts	{ offRamp: string; request: { lane: Lane<CCIPVersion>; message: { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } | { sequenceNumber: bigint; } & { messageId: string; } | { messageId: string; } | { messageId: string; } | { messageId: string; } | { messageId: string; } | { messageId: string; }; tx: { timestamp: number; }; }; } & Pick<LogFilter, "startBlock" | "watch" | "page">	getVerifications options

Returns

Promise<CCIPVerifications>

CCIPVerifications

Throws

CCIPCommitNotFoundError if no commit found for the request (transient)

Example

TypeScript

const verifications = await dest.getVerifications({
  offRamp: offRampAddress,
  request,
})
console.log(`Committed at block: ${verifications.log.blockNumber}`)

---

sendMessage()

abstract sendMessage(opts: SendMessageOpts & { wallet: unknown; }): Promise<CCIPRequest<CCIPVersion>>

Defined in: chain.ts:906

Send a CCIP message through a router using provided wallet.

Parameters

Parameter	Type	Description
opts	SendMessageOpts & { wallet: unknown; }	SendMessageOpts with chain-specific wallet for signing

Returns

Promise<CCIPRequest<CCIPVersion>>

Promise resolving to CCIP request with message details

Throws

CCIPWalletNotSignerError if wallet is not a valid signer

Throws

CCIPLaneNotFoundError if no lane exists to destination

Example

TypeScript

const request = await chain.sendMessage({
  router: '0x...',
  destChainSelector: 4949039107694359620n,
  message: {
    receiver: '0x...',
    data: '0x1337',
    tokenAmounts: [{ token: '0x...', amount: 100n }],
    feeToken: '0xLinkToken',
  },
  wallet: signer,
})
console.log(`Message ID: ${request.message.messageId}`)

---

typeAndVersion()

abstract typeAndVersion(address: string): Promise<[string, string, string, string]>

Defined in: chain.ts:682

Fetch typeAndVersion for a given CCIP contract address.

Parameters

Parameter	Type	Description
address	string	CCIP contract address

Returns

Promise<[string, string, string, string]>

Promise resolving to tuple:

• type - Parsed type of the contract, e.g. OnRamp
• version - Parsed version of the contract, e.g. 1.6.0
• typeAndVersion - Original (unparsed) typeAndVersion() string
• suffix - Suffix of the version, if any (e.g. -dev)

Throws

CCIPTypeVersionInvalidError if typeAndVersion string cannot be parsed

Example

TypeScript

const [type, version] = await chain.typeAndVersion(contractAddress)
console.log(`Contract: ${type} v${version}`)
if (version < '1.6.0') {
  console.log('Legacy contract detected')
}

---

waitFinalized()

waitFinalized(opts: { cancel$?: Promise<unknown>; finality?: number | "finalized"; request: { log: { } & { } & { } & { } & { tx?: { timestamp: number; }; }; tx?: { timestamp: number; }; }; }): Promise<true>

Defined in: chain.ts:441

Confirm a log tx is finalized or wait for it to be finalized.

Parameters

Parameter	Type	Description
opts	{ cancel$?: Promise<unknown>; finality?: number | "finalized"; request: { log: { } & { } & { } & { } & { tx?: { timestamp: number; }; }; tx?: { timestamp: number; }; }; }	Options containing the request, finality level, and optional cancel promise
opts.cancel$?	Promise<unknown>	-
opts.finality?	number | "finalized"	-
opts.request	{ log: { } & { } & { } & { } & { tx?: { timestamp: number; }; }; tx?: { timestamp: number; }; }	-
opts.request.log	{ } & { } & { } & { } & { tx?: { timestamp: number; }; }	-
opts.request.tx?	{ timestamp: number; }	Transaction that emitted the request.
opts.request.tx.timestamp	number	Unix timestamp of the block.

Returns

Promise<true>

true when the transaction is finalized

Throws

CCIPTransactionNotFinalizedError if the transaction is not included (e.g., due to a reorg)

Example

TypeScript

const request = await source.getMessagesInTx(txHash)
try {
  await source.waitFinalized({ request: request[0] })
  console.log('Transaction finalized')
} catch (err) {
  if (err instanceof CCIPTransactionNotFinalizedError) {
    console.log('Transaction not yet finalized')
  }
}