Settle Channel Voucher

channel.settle

Settles a TIP-20 channel reserve voucher.

Usage

import {  } from './viem.config'
 
const  = {
  : '0x0000000000000000000000000000000000000000',
  : '0x0000000000000000000000000000000000000000000000000000000000000000',
  : '0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC',
  : '0x70997970C51812dc3A010C7d01b50e0d17dc79C8',
  : '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEbb',
  : '0x0000000000000000000000000000000000000000000000000000000000000101',
  : '0x20c0000000000000000000000000000000000001',
} as 
 
const { , ... } = await ..({
  : 40000000n,
  ,
  : '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1b',
})
 
.('Settled:', )
Settled: { channelId: '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef', payer: '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEbb', payee: '0x70997970C51812dc3A010C7d01b50e0d17dc79C8', cumulativeAmount: 40000000n, deltaPaid: 40000000n, newSettled: 40000000n }

import { ,  } from 'viem/tempo'
 
export const  = .({
  : .('0x...'),
})

Asynchronous Usage

The examples above use a *Sync variant of the action, that will wait for the transaction to be included before returning.

If you are optimizing for performance, you should use the non-sync channel.settle action and wait for inclusion manually:

import {  } from 'viem/tempo'
import {  } from './viem.config'
 
const  = {
  : '0x0000000000000000000000000000000000000000',
  : '0x0000000000000000000000000000000000000000000000000000000000000000',
  : '0x3C44CdDdB6a900fa2b585dd299e03d12FA4293BC',
  : '0x70997970C51812dc3A010C7d01b50e0d17dc79C8',
  : '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEbb',
  : '0x0000000000000000000000000000000000000000000000000000000000000101',
  : '0x20c0000000000000000000000000000000000001',
} as 
 
const  = await ..({
  : 40000000n,
  ,
  : '0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1b',
})
const  = await ..({  }).
 
const {  } = ...(.)

Recipes

Settle Before the Deposit Cap Is Reached

Combine channel.getStates with a capacity check to capture what you are owed before signed vouchers approach the channel's deposit cap.

import {  } from 'viem/tempo'
import {  } from './viem.config'
 
const  = .({
  : '0x0000000000000000000000000000000000000000000000000000000000000000',
  : ..,
  : '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEbb',
  : '0x0000000000000000000000000000000000000000000000000000000000000101',
  : '0x20c0000000000000000000000000000000000000',
})
 
// Latest voucher received from the payer.
const  = { : 90_000000n, : '0x...' } as 
 
const  = await ..({  })
 
if (. >= (. * 8n) / 10n)
  await ..({
    : .,
    ,
    : .,
  })

import { ,  } from 'viem/tempo'
 
export const  = .({
  : .('0x...'),
})

Settle for a Merchant as the Channel Operator

Use an operator account, set through channel.open's operator option, to submit settlements for payees that do not transact themselves.

import {  } from 'viem/tempo'
import {  } from './viem.config'
 
// This client is the platform backend acting as the channel's operator.
const  = .({
  : '0x0000000000000000000000000000000000000000000000000000000000000000',
  : ..,
  : '0x742d35Cc6634C0532925a3b844Bc9e7595f0bEbb',
  : '0x8ba1f109551bD432803012645Ac136ddd64DBA72',
  : '0x0000000000000000000000000000000000000000000000000000000000000101',
  : '0x20c0000000000000000000000000000000000000',
})
 
// Voucher forwarded by the merchant (the payee).
const {  } = await ..({
  : 40_000000n,
  ,
  : '0x...',
})

import { ,  } from 'viem/tempo'
 
export const  = .({
  : .('0x...'),
})

Return Value

type ReturnType = {
  /** Channel ID. */
  channelId: Hex
  /** Channel payer. */
  payer: Address
  /** Channel payee. */
  payee: Address
  /** Total voucher amount. */
  cumulativeAmount: bigint
  /** Amount paid by this settlement. */
  deltaPaid: bigint
  /** New settled amount. */
  newSettled: bigint
  /** Transaction receipt. */
  receipt: TransactionReceipt
}

The transaction receipt and decoded event data.

Parameters

channel

Type: Channel

TIP-20 channel.

cumulativeAmount

Type: bigint

Total voucher amount signed for the channel.

signature

Type: Hex

Voucher signature.

account (optional)

Type: Account | Address

Account that will be used to send the transaction.

feePayer (optional)

Type: Account | boolean

Fee payer for the transaction (TIP-1 gas sponsorship).

Pass true to defer the fee token to an external fee payer (e.g. a relay), or a local Account to co-sign the transaction as the fee payer.

feeToken (optional)

Type: Address | bigint

Fee token for the transaction.

Can be an unpaused USD-denominated TIP-20 token address or ID.

gas (optional)

Type: bigint

Gas limit for the transaction.

keyAuthorization (optional)

Type: KeyAuthorization

Signed key authorization to include with the transaction, authorizing an access key to act for the sending account.

maxFeePerGas (optional)

Type: bigint

Max fee per gas for the transaction.

maxPriorityFeePerGas (optional)

Type: bigint

Max priority fee per gas for the transaction.

nonce (optional)

Type: number

Nonce for the transaction.

nonceKey (optional)

Type: 'expiring' | 'random' | bigint

Nonce key for the transaction (TIP-1009 2D nonces).

Use 'expiring' to select an expiring nonce, which enables concurrent transaction submission without nonce ordering. Use 'random' to select a random key.

throwOnReceiptRevert (optional)

Type: boolean
Default: true

Whether a Sync action throws when the receipt reports a revert.

validAfter (optional)

Type: number

Unix timestamp after which the transaction can be included.

validBefore (optional)

Type: number

Unix timestamp before which the transaction must be included.

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