viem
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JavaScript
import { parseAccount } from '../../accounts/utils/parseAccount.js';
import { readContract } from '../../actions/public/readContract.js';
import { watchContractEvent } from '../../actions/public/watchContractEvent.js';
import { sendTransaction } from '../../actions/wallet/sendTransaction.js';
import { sendTransactionSync } from '../../actions/wallet/sendTransactionSync.js';
import { writeContract } from '../../actions/wallet/writeContract.js';
import { writeContractSync } from '../../actions/wallet/writeContractSync.js';
import { parseEventLogs } from '../../utils/abi/parseEventLogs.js';
import * as Abis from '../Abis.js';
import { signKeyAuthorization } from '../Account.js';
import * as Addresses from '../Addresses.js';
import * as Hardfork from '../Hardfork.js';
import { defineCall } from '../internal/utils.js';
/** @internal */
const signatureTypes = {
0: 'secp256k1',
1: 'p256',
2: 'webAuthn',
};
/** @internal */
const spendPolicies = {
true: 'limited',
false: 'unlimited',
};
/**
* Authorizes an access key by signing a key authorization and sending a transaction.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions, Account } from 'viem/tempo'
* import { generatePrivateKey } from 'viem/accounts'
*
* const account = Account.from({ privateKey: '0x...' })
* const client = createClient({
* account,
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const accessKey = Account.fromP256(generatePrivateKey(), {
* access: account,
* })
*
* const hash = await Actions.accessKey.authorize(client, {
* accessKey,
* expiry: Math.floor((Date.now() + 30_000) / 1000),
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction hash.
*/
export async function authorize(client, parameters) {
return authorize.inner(sendTransaction, client, parameters);
}
(function (authorize) {
/** @internal */
async function inner(action, client, parameters) {
const { accessKey, admin, chainId = client.chain?.id, expiry, limits, scopes, witness, ...rest } = parameters;
const account_ = rest.account ?? client.account;
if (!account_)
throw new Error('account is required.');
if (!chainId)
throw new Error('chainId is required.');
const parsed = parseAccount(account_);
const keyAuthorization = await signKeyAuthorization(parsed, {
chainId: BigInt(chainId),
key: accessKey,
admin,
expiry,
limits,
scopes,
witness,
});
return (await action(client, {
...rest,
keyAuthorization,
}));
}
authorize.inner = inner;
function extractEvent(logs) {
const [log] = parseEventLogs({
abi: Abis.accountKeychain,
logs,
eventName: 'KeyAuthorized',
strict: true,
});
if (!log)
throw new Error('`KeyAuthorized` event not found.');
return log;
}
authorize.extractEvent = extractEvent;
})(authorize || (authorize = {}));
/**
* Authorizes an access key and waits for the transaction receipt.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions, Account } from 'viem/tempo'
* import { generatePrivateKey } from 'viem/accounts'
*
* const account = Account.from({ privateKey: '0x...' })
* const client = createClient({
* account,
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const accessKey = Account.fromP256(generatePrivateKey(), {
* access: account,
* })
*
* const { receipt, ...result } = await Actions.accessKey.authorizeSync(client, {
* accessKey,
* expiry: Math.floor((Date.now() + 30_000) / 1000),
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction receipt and event data.
*/
export async function authorizeSync(client, parameters) {
const { throwOnReceiptRevert = true, ...rest } = parameters;
const receipt = await authorize.inner(sendTransactionSync, client, {
...rest,
throwOnReceiptRevert,
});
const { args } = authorize.extractEvent(receipt.logs);
return {
...args,
receipt,
};
}
/**
* Burns a key-authorization witness, invalidating any authorization bound to
* it before it is submitted onchain.
*
* Once burned, an `authorizeKey` call carrying the same `witness` will revert.
* This lets applications issue a signed authorization offchain (see
* {@link authorize}) while retaining the ability to revoke it.
*
* [TIP-1053](https://tips.sh/1053)
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
* import { privateKeyToAccount } from 'viem/accounts'
*
* const client = createClient({
* account: privateKeyToAccount('0x...'),
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const hash = await Actions.accessKey.burnWitness(client, {
* witness: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction hash.
*/
export async function burnWitness(client, parameters) {
return burnWitness.inner(writeContract, client, parameters);
}
(function (burnWitness) {
/** @internal */
async function inner(action, client, parameters) {
const { witness, ...rest } = parameters;
const call = burnWitness.call({ witness });
return (await action(client, {
...rest,
...call,
}));
}
burnWitness.inner = inner;
/**
* Defines a call to the `burnKeyAuthorizationWitness` function.
*
* Can be passed as a parameter to:
* - [`estimateContractGas`](https://viem.sh/docs/contract/estimateContractGas): estimate the gas cost of the call
* - [`simulateContract`](https://viem.sh/docs/contract/simulateContract): simulate the call
* - [`sendCalls`](https://viem.sh/docs/actions/wallet/sendCalls): send multiple calls
*
* @example
* ```ts
* import { createClient, http, walletActions } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* }).extend(walletActions)
*
* const hash = await client.sendTransaction({
* calls: [
* Actions.accessKey.burnWitness.call({ witness: '0x...' }),
* ],
* })
* ```
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { witness } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'burnKeyAuthorizationWitness',
args: [witness],
});
}
burnWitness.call = call;
function extractEvent(logs) {
const [log] = parseEventLogs({
abi: Abis.accountKeychain,
logs,
eventName: 'KeyAuthorizationWitnessBurned',
strict: true,
});
if (!log)
throw new Error('`KeyAuthorizationWitnessBurned` event not found.');
return log;
}
burnWitness.extractEvent = extractEvent;
})(burnWitness || (burnWitness = {}));
/**
* Burns a key-authorization witness and waits for the transaction receipt.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
* import { privateKeyToAccount } from 'viem/accounts'
*
* const client = createClient({
* account: privateKeyToAccount('0x...'),
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const { receipt, ...result } = await Actions.accessKey.burnWitnessSync(client, {
* witness: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction receipt and event data.
*/
export async function burnWitnessSync(client, parameters) {
const { throwOnReceiptRevert = true, ...rest } = parameters;
const receipt = await burnWitness.inner(writeContractSync, client, {
...rest,
throwOnReceiptRevert,
});
const { args } = burnWitness.extractEvent(receipt.logs);
return {
...args,
receipt,
};
}
/**
* Gets access key information.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const key = await Actions.accessKey.getMetadata(client, {
* account: '0x...',
* accessKey: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The key information.
*/
export async function getMetadata(client, parameters) {
const { account: account_ = client.account, accessKey, ...rest } = parameters;
if (!account_)
throw new Error('account is required.');
const account = parseAccount(account_);
const result = await readContract(client, {
...rest,
account: null,
...getMetadata.call({ account: account.address, accessKey }),
});
return {
address: result.keyId,
keyType: signatureTypes[result.signatureType] ??
'secp256k1',
expiry: result.expiry,
spendPolicy: spendPolicies[`${result.enforceLimits}`],
isRevoked: result.isRevoked,
};
}
(function (getMetadata) {
/**
* Defines a call to the `getKey` function.
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { account, accessKey } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'getKey',
args: [account, resolveAccessKeyAddress(accessKey)],
});
}
getMetadata.call = call;
})(getMetadata || (getMetadata = {}));
/**
* Gets the remaining spending limit for a key-token pair.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const { remaining, periodEnd } = await Actions.accessKey.getRemainingLimit(client, {
* account: '0x...',
* accessKey: '0x...',
* token: '0x...',
* })
*
* console.log(remaining, periodEnd)
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The remaining spending amount and period end timestamp.
*/
export async function getRemainingLimit(client, parameters) {
const { account: account_ = client.account, accessKey, token, ...rest } = parameters;
if (!account_)
throw new Error('account is required.');
const account = parseAccount(account_);
// TODO: remove pre-t3 branch once mainnet is on t3.
const hardfork = client.chain?.hardfork;
if (hardfork && Hardfork.lt(hardfork, 't3')) {
const remaining = await readContract(client, {
...rest,
...getRemainingLimit.call({ account: account.address, accessKey, token }),
});
return { remaining, periodEnd: undefined };
}
const [remaining, periodEnd] = await readContract(client, {
...rest,
...getRemainingLimit.callWithPeriod({
account: account.address,
accessKey,
token,
}),
});
return { remaining, periodEnd };
}
(function (getRemainingLimit) {
/**
* Defines a call to the `getRemainingLimit` function (pre-T3).
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { account, accessKey, token } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'getRemainingLimit',
args: [account, resolveAccessKeyAddress(accessKey), token],
});
}
getRemainingLimit.call = call;
/**
* Defines a call to the `getRemainingLimitWithPeriod` function (T3+).
*
* @param args - Arguments.
* @returns The call.
*/
function callWithPeriod(args) {
const { account, accessKey, token } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'getRemainingLimitWithPeriod',
args: [account, resolveAccessKeyAddress(accessKey), token],
});
}
getRemainingLimit.callWithPeriod = callWithPeriod;
})(getRemainingLimit || (getRemainingLimit = {}));
/**
* Checks whether an access key is an admin key for an account.
*
* Returns `true` for the account's root key or for an active admin access key
* (see {@link authorize} with `admin: true`).
*
* [TIP-1049](https://tips.sh/1049)
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const isAdmin = await Actions.accessKey.isAdmin(client, {
* account: '0x...',
* accessKey: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns Whether the access key is an admin key.
*/
export async function isAdmin(client, parameters) {
const { account: account_ = client.account, accessKey, ...rest } = parameters;
if (!account_)
throw new Error('account is required.');
const account = parseAccount(account_);
return readContract(client, {
...rest,
account: null,
...isAdmin.call({ account: account.address, accessKey }),
});
}
(function (isAdmin) {
/**
* Defines a call to the `isAdminKey` function.
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { account, accessKey } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'isAdminKey',
args: [account, resolveAccessKeyAddress(accessKey)],
});
}
isAdmin.call = call;
})(isAdmin || (isAdmin = {}));
/**
* Checks whether a key-authorization witness has been burned for an account.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const isBurned = await Actions.accessKey.isWitnessBurned(client, {
* account: '0x...',
* witness: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns Whether the witness has been burned.
*/
export async function isWitnessBurned(client, parameters) {
const { account: account_ = client.account, witness, ...rest } = parameters;
if (!account_)
throw new Error('account is required.');
const account = parseAccount(account_);
return readContract(client, {
...rest,
account: null,
...isWitnessBurned.call({ account: account.address, witness }),
});
}
(function (isWitnessBurned) {
/**
* Defines a call to the `isKeyAuthorizationWitnessBurned` function.
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { account, witness } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'isKeyAuthorizationWitnessBurned',
args: [account, witness],
});
}
isWitnessBurned.call = call;
})(isWitnessBurned || (isWitnessBurned = {}));
/**
* Revokes an authorized access key.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
* import { privateKeyToAccount } from 'viem/accounts'
*
* const client = createClient({
* account: privateKeyToAccount('0x...'),
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const hash = await Actions.accessKey.revoke(client, {
* accessKey: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction hash.
*/
export async function revoke(client, parameters) {
return revoke.inner(writeContract, client, parameters);
}
(function (revoke) {
/** @internal */
async function inner(action, client, parameters) {
const { accessKey, ...rest } = parameters;
const call = revoke.call({ accessKey });
return (await action(client, {
...rest,
...call,
}));
}
revoke.inner = inner;
/**
* Defines a call to the `revokeKey` function.
*
* Can be passed as a parameter to:
* - [`estimateContractGas`](https://viem.sh/docs/contract/estimateContractGas): estimate the gas cost of the call
* - [`simulateContract`](https://viem.sh/docs/contract/simulateContract): simulate the call
* - [`sendCalls`](https://viem.sh/docs/actions/wallet/sendCalls): send multiple calls
*
* @example
* ```ts
* import { createClient, http, walletActions } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* }).extend(walletActions)
*
* const hash = await client.sendTransaction({
* calls: [
* Actions.accessKey.revoke.call({ accessKey: '0x...' }),
* ],
* })
* ```
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { accessKey } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'revokeKey',
args: [resolveAccessKeyAddress(accessKey)],
});
}
revoke.call = call;
function extractEvent(logs) {
const [log] = parseEventLogs({
abi: Abis.accountKeychain,
logs,
eventName: 'KeyRevoked',
strict: true,
});
if (!log)
throw new Error('`KeyRevoked` event not found.');
return log;
}
revoke.extractEvent = extractEvent;
})(revoke || (revoke = {}));
/**
* Revokes an authorized access key and waits for the transaction receipt.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
* import { privateKeyToAccount } from 'viem/accounts'
*
* const client = createClient({
* account: privateKeyToAccount('0x...'),
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const result = await Actions.accessKey.revokeSync(client, {
* accessKey: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction receipt and event data.
*/
export async function revokeSync(client, parameters) {
const { throwOnReceiptRevert = true, ...rest } = parameters;
const receipt = await revoke.inner(writeContractSync, client, {
...rest,
throwOnReceiptRevert,
});
const { args } = revoke.extractEvent(receipt.logs);
return {
...args,
receipt,
};
}
/**
* Signs a key authorization for an access key.
*
* @example
* ```ts
* import { generatePrivateKey } from 'viem/accounts'
* import { Account, Actions } from 'viem/tempo'
*
* const account = Account.from({ privateKey: '0x...' })
* const accessKey = Account.fromP256(generatePrivateKey(), {
* access: account,
* })
*
* const keyAuthorization = await Actions.accessKey.signAuthorization(
* client,
* {
* account,
* accessKey,
* expiry: Math.floor((Date.now() + 30_000) / 1000),
* },
* )
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The signed key authorization.
*/
export async function signAuthorization(client, parameters) {
const { accessKey, chainId = client.chain?.id, ...rest } = parameters;
const account_ = rest.account ?? client.account;
if (!account_)
throw new Error('account is required.');
if (!chainId)
throw new Error('chainId is required.');
const parsed = parseAccount(account_);
return signKeyAuthorization(parsed, {
chainId: BigInt(chainId),
key: accessKey,
...rest,
});
}
/**
* Updates the spending limit for a specific token on an authorized access key.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
* import { privateKeyToAccount } from 'viem/accounts'
*
* const client = createClient({
* account: privateKeyToAccount('0x...'),
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const hash = await Actions.accessKey.updateLimit(client, {
* accessKey: '0x...',
* token: '0x...',
* limit: 1000000000000000000n,
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction hash.
*/
export async function updateLimit(client, parameters) {
return updateLimit.inner(writeContract, client, parameters);
}
(function (updateLimit) {
/** @internal */
async function inner(action, client, parameters) {
const { accessKey, token, limit, ...rest } = parameters;
const call = updateLimit.call({ accessKey, token, limit });
return (await action(client, {
...rest,
...call,
}));
}
updateLimit.inner = inner;
/**
* Defines a call to the `updateSpendingLimit` function.
*
* Can be passed as a parameter to:
* - [`estimateContractGas`](https://viem.sh/docs/contract/estimateContractGas): estimate the gas cost of the call
* - [`simulateContract`](https://viem.sh/docs/contract/simulateContract): simulate the call
* - [`sendCalls`](https://viem.sh/docs/actions/wallet/sendCalls): send multiple calls
*
* @example
* ```ts
* import { createClient, http, walletActions } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* }).extend(walletActions)
*
* const hash = await client.sendTransaction({
* calls: [
* Actions.accessKey.updateLimit.call({
* accessKey: '0x...',
* token: '0x...',
* limit: 1000000000000000000n,
* }),
* ],
* })
* ```
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { accessKey, token, limit } = args;
return defineCall({
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
functionName: 'updateSpendingLimit',
args: [resolveAccessKeyAddress(accessKey), token, limit],
});
}
updateLimit.call = call;
function extractEvent(logs) {
const [log] = parseEventLogs({
abi: Abis.accountKeychain,
logs,
eventName: 'SpendingLimitUpdated',
strict: true,
});
if (!log)
throw new Error('`SpendingLimitUpdated` event not found.');
return log;
}
updateLimit.extractEvent = extractEvent;
})(updateLimit || (updateLimit = {}));
/**
* Updates the spending limit and waits for the transaction receipt.
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
* import { privateKeyToAccount } from 'viem/accounts'
*
* const client = createClient({
* account: privateKeyToAccount('0x...'),
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const result = await Actions.accessKey.updateLimitSync(client, {
* accessKey: '0x...',
* token: '0x...',
* limit: 1000000000000000000n,
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns The transaction receipt and event data.
*/
export async function updateLimitSync(client, parameters) {
const { throwOnReceiptRevert = true, ...rest } = parameters;
const receipt = await updateLimit.inner(writeContractSync, client, {
...rest,
throwOnReceiptRevert,
});
const { args } = updateLimit.extractEvent(receipt.logs);
return {
account: args.account,
publicKey: args.publicKey,
token: args.token,
limit: args.newLimit,
receipt,
};
}
/**
* Watches for admin key authorization events.
*
* Emitted when an admin key is authorized (see {@link authorize} with
* `admin: true`).
*
* [TIP-1049](https://tips.sh/1049)
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const unwatch = Actions.accessKey.watchAdminAuthorized(client, {
* onAuthorized: (args, log) => {
* console.log('Admin key authorized:', args)
* },
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns A function to unsubscribe from the event.
*/
export function watchAdminAuthorized(client, parameters) {
const { onAuthorized, ...rest } = parameters;
return watchContractEvent(client, {
...rest,
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
eventName: 'AdminKeyAuthorized',
onLogs: (logs) => {
for (const log of logs)
onAuthorized(log.args, log);
},
strict: true,
});
}
/**
* Watches for key-authorization witness events.
*
* Emitted when a key is authorized with a `witness` (see {@link authorize}).
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const unwatch = Actions.accessKey.watchWitness(client, {
* onWitness: (args, log) => {
* console.log('Witness used:', args)
* },
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns A function to unsubscribe from the event.
*/
export function watchWitness(client, parameters) {
const { onWitness, ...rest } = parameters;
return watchContractEvent(client, {
...rest,
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
eventName: 'KeyAuthorizationWitness',
onLogs: (logs) => {
for (const log of logs)
onWitness(log.args, log);
},
strict: true,
});
}
/**
* Watches for key-authorization witness burned events.
*
* Emitted when a witness is burned (see {@link burnWitness}).
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const unwatch = Actions.accessKey.watchWitnessBurned(client, {
* onBurned: (args, log) => {
* console.log('Witness burned:', args)
* },
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns A function to unsubscribe from the event.
*/
export function watchWitnessBurned(client, parameters) {
const { onBurned, ...rest } = parameters;
return watchContractEvent(client, {
...rest,
address: Addresses.accountKeychain,
abi: Abis.accountKeychain,
eventName: 'KeyAuthorizationWitnessBurned',
onLogs: (logs) => {
for (const log of logs)
onBurned(log.args, log);
},
strict: true,
});
}
/**
* Verifies that a keychain signature was produced by an active access key
* for the expected account.
*
* By default (`admin: true`), returns `true` only if the signature was
* produced by the account's root key or an active admin access key. Set
* `admin: false` to accept any active access key.
*
* Returns `false` for account mismatches, unknown, revoked, or expired
* access keys. [TIP-1049](https://tips.sh/1049)
*
* @example
* ```ts
* import { createClient, http } from 'viem'
* import { tempo } from 'viem/chains'
* import { Actions } from 'viem/tempo'
*
* const client = createClient({
* chain: tempo.extend({ feeToken: '0x20c0000000000000000000000000000000000001' }),
* transport: http(),
* })
*
* const valid = await Actions.accessKey.verifyHash(client, {
* account: '0x...',
* hash: '0x...',
* signature: '0x...',
* })
* ```
*
* @param client - Client.
* @param parameters - Parameters.
* @returns Whether the keychain signature is valid for the account.
*/
export async function verifyHash(client, parameters) {
const { account, admin, hash, signature, ...rest } = parameters;
return readContract(client, {
...rest,
...verifyHash.call({ account, admin, hash, signature }),
});
}
(function (verifyHash) {
/**
* Defines a call to `verifyKeychain` or `verifyKeychainAdmin` on the
* Signature Verifier precompile (controlled by `admin`).
*
* @param args - Arguments.
* @returns The call.
*/
function call(args) {
const { account, admin = true, hash, signature } = args;
return defineCall({
address: Addresses.signatureVerifier,
abi: Abis.signatureVerifier,
functionName: admin ? 'verifyKeychainAdmin' : 'verifyKeychain',
args: [account, hash, signature],
});
}
verifyHash.call = call;
})(verifyHash || (verifyHash = {}));
/** @internal */
function resolveAccessKeyAddress(accessKey) {
if (typeof accessKey === 'string')
return accessKey;
return accessKey.accessKeyAddress;
}
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