Lease API

import { LiquidityServiceClient } from './proto/LiquidityServiceClientPb'
import {
  RequestChannelLiquidityRequest,
  ChannelLiquidityRequestOperation,
  AssetLiquidity,
  OffchainFeePayment
} from './proto/liquidity_pb'

const client = new LiquidityServiceClient('http://localhost:50051')

const request = new RequestChannelLiquidityRequest()
request.setNetwork({ protocol: 1, id: '0a03cf40' }) // Bitcoin Signet

// Open new channel with 0.1 BTC on the server side
const open = new ChannelLiquidityRequestOperation.Open()
const liq = new AssetLiquidity()
liq.setServerAmount({ value: '0.1' })
liq.setClientAmount({ value: '0' })
open.getAssetLiquidityMap().set('BTC', liq)

const op = new ChannelLiquidityRequestOperation()
op.setOpen(open)
request.setOperation(op)

request.setLeaseDurationSeconds(2592000) // 30 days
request.setTxFeeRate({
  maxFeePerUnit: { value: '50' },
  priorityFeePerUnit: { value: '5' }
})
request.setPaymentNetwork({ protocol: 1, id: '0a03cf40' })
request.setPaymentAssetId('BTC')
request.setOffchainFeePayment(new OffchainFeePayment())

const response = await client.requestChannelLiquidity(request, {})
console.log('Channel:', response.getChannelId(), 'TX:', response.getTxid())

// Build the same RequestChannelLiquidityRequest as you would for the actual call
const response = await client.estimateRequestChannelLiquidityFee(request, {})
console.log('Estimated fee:', response.getFee()?.getValue())

import {
  RequestChannelReleaseRequest,
  ChannelReleaseOperation,
  OffchainFeePayment
} from './proto/liquidity_pb'

const request = new RequestChannelReleaseRequest()
request.setNetwork({ protocol: 1, id: '0a03cf40' })

const close = new ChannelReleaseOperation.CooperativeClose()
close.setChannelId('ch_def456')
const op = new ChannelReleaseOperation()
op.setCooperativeClose(close)
request.setOperation(op)

request.setTxFeeRate({
  maxFeePerUnit: { value: '50' },
  priorityFeePerUnit: { value: '5' }
})
request.setPaymentNetwork({ protocol: 1, id: '0a03cf40' })
request.setPaymentAssetId('BTC')
request.setOffchainFeePayment(new OffchainFeePayment())

const response = await client.requestChannelRelease(request, {})
console.log('Release TX:', response.getTxid())

const response = await client.estimateRequestChannelReleaseFee(request, {})
console.log('Estimated fee:', response.getFee()?.getValue())

import {
  RequestChannelLeaseExtensionRequest,
  OffchainFeePayment
} from './proto/liquidity_pb'

const request = new RequestChannelLeaseExtensionRequest()
request.setNetwork({ protocol: 1, id: '0a03cf40' })
request.setChannelId('ch_def456')
request.setAssetId('BTC')
request.setLeaseExtensionSeconds(2592000) // +30 days
request.setPaymentNetwork({ protocol: 1, id: '0a03cf40' })
request.setPaymentAssetId('BTC')
request.setOffchainFeePayment(new OffchainFeePayment())

const response = await client.requestChannelLeaseExtension(request, {})
console.log('New expiry:', response.getExpiryTimestampSeconds())

const response = await client.estimateRequestChannelLeaseExtensionFee(request, {})
console.log('Estimated fee:', response.getFee()?.getValue())

const days = 30
const leaseSeconds = days * 24 * 60 * 60 // 2,592,000

async function openChannelWithLiquidity(
  client: LiquidityServiceClient,
  network: { protocol: number; id: string },
  assetId: string,
  serverAmount: string,
  leaseDays: number
) {
  const request = new RequestChannelLiquidityRequest()
  request.setNetwork(network)

  const open = new ChannelLiquidityRequestOperation.Open()
  const liq = new AssetLiquidity()
  liq.setServerAmount({ value: serverAmount })
  liq.setClientAmount({ value: '0' })
  open.getAssetLiquidityMap().set(assetId, liq)

  const op = new ChannelLiquidityRequestOperation()
  op.setOpen(open)
  request.setOperation(op)

  request.setLeaseDurationSeconds(leaseDays * 24 * 60 * 60)
  request.setTxFeeRate({
    maxFeePerUnit: { value: '50' },
    priorityFeePerUnit: { value: '5' }
  })
  request.setPaymentNetwork(network)
  request.setPaymentAssetId(assetId)
  request.setOffchainFeePayment(new OffchainFeePayment())

  // 1. Estimate first
  const estimate = await client.estimateRequestChannelLiquidityFee(request, {})
  console.log('Estimated fee:', estimate.getFee()?.getValue())

  // 2. Execute
  const result = await client.requestChannelLiquidity(request, {})
  return {
    channelId: result.getChannelId(),
    txid: result.getTxid()
  }
}

async function cooperativeClose(
  client: LiquidityServiceClient,
  network: { protocol: number; id: string },
  channelId: string,
  paymentAssetId: string
) {
  const request = new RequestChannelReleaseRequest()
  request.setNetwork(network)

  const close = new ChannelReleaseOperation.CooperativeClose()
  close.setChannelId(channelId)
  const op = new ChannelReleaseOperation()
  op.setCooperativeClose(close)
  request.setOperation(op)

  request.setTxFeeRate({
    maxFeePerUnit: { value: '50' },
    priorityFeePerUnit: { value: '5' }
  })
  request.setPaymentNetwork(network)
  request.setPaymentAssetId(paymentAssetId)
  request.setOffchainFeePayment(new OffchainFeePayment())

  const result = await client.requestChannelRelease(request, {})
  return result.getTxid()
}