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viem

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TypeScript Interface for Ethereum

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import { parseAccount } from '../../accounts/utils/parseAccount.js'; import { readContract } from '../../actions/public/readContract.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, chainId = client.chain?.id, expiry, limits, scopes, ...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, expiry, limits, scopes, }); 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, }; } /** * 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, }; } /** * 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, }; } /** * 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, ...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 = {})); /** * 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, }); } /** @internal */ function resolveAccessKeyAddress(accessKey) { if (typeof accessKey === 'string') return accessKey; return accessKey.accessKeyAddress; } //# sourceMappingURL=accessKey.js.map