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@alistair-singh
alistair-singh committed Feb 4, 2025
1 parent 8c5df61 commit 54fc201
Showing 1 changed file with 47 additions and 9 deletions.
56 changes: 47 additions & 9 deletions web/packages/operations/src/transfer_token_v2.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ const monitor = async () => {
}
console.log(`Using environment '${env}'`)

const { ethChainId, config } = snwobridgeEnv
const { config } = snwobridgeEnv
await cryptoWaitReady()

const context = new Context({
Expand All @@ -41,10 +41,13 @@ const monitor = async () => {
},
})


// Contains the list of all token and parachain metadata in order to send tokens.
// It may take some build but does not change often so it is safe to cache for 12 hours.
//const registry = await assetsV2.buildRegistry(assetsV2.fromEnvironment(snwobridgeEnv))
// Step 0. Build the Asset Registry. The registry contains the list of all token and parachain metadata in order to send tokens.
// It may take some build but does not change often so it is safe to cache for 12 hours and shipped with your dapp as static data.
//
// The registry can be build from a snowbridge environment or snowbridge coutntext.
// const registry = await assetsV2.buildRegistry(assetsV2.fromEnvironment(snwobridgeEnv))
// If your dapp does not use the snowbridge environment or context you can always build it manually by
// specifying RegistryOptions for only the parachains you care about.
const registry = await assetsV2.buildRegistry(await assetsV2.fromContext(context))

console.log("Asset Registry:", JSON.stringify(registry, (_, value) => typeof value === "bigint" ? String(value) : value, 2))
Expand Down Expand Up @@ -80,7 +83,10 @@ const monitor = async () => {
console.log("Ethereum to Asset Hub")
{
const destinationChainId: number = 1000
// Step 1. Get the delivery fee for the transaction
const fee = await toPolkadotV2.getDeliveryFee(context.gateway(), registry, WETH_CONTRACT, destinationChainId)

// Step 2. Create a transfer tx
const transfer = await toPolkadotV2.createTransfer(
registry,
ETHEREUM_ACCOUNT_PUBLIC,
Expand All @@ -90,6 +96,8 @@ const monitor = async () => {
amount,
fee,
);

// Step 3. Validate the transaction.
const validation = await toPolkadotV2.validateTransfer({
ethereum: context.ethereum(),
gateway: context.gateway(),
Expand All @@ -99,14 +107,17 @@ const monitor = async () => {
}, transfer)
console.log('validation result', validation)

// Step 4. Check validation logs for errors
if (validation.logs.find(l => l.kind == toPolkadotV2.ValidationKind.Error)) {
throw Error(`validation has one of more errors.`)
}

// Step 5. Estimate the cost of the execution cost of the transaction
const { tx, computed: { totalValue } } = transfer
const estimatedGas = await context.ethereum().estimateGas(tx)
const feeData = await context.ethereum().getFeeData()
const executionFee = (feeData.gasPrice ?? 0n) * estimatedGas

console.log('tx:', tx)
console.log('feeData:', feeData.toJSON())
console.log('gas:', estimatedGas)
Expand All @@ -116,12 +127,14 @@ const monitor = async () => {
console.log('ether sent:', formatEther(totalValue - fee.deliveryFeeInWei))
console.log('dry run:', await context.ethereum().call(tx))

console.log('Submitting...')
// Step 6. Submit the transaction
const response = await ETHEREUM_ACCOUNT.sendTransaction(tx)
const receipt = await response.wait(1)
if (!receipt) {
throw Error(`Transaction ${response.hash} not included.`)
}

// Step 7. Get the message reciept for tracking purposes
const message = await toPolkadotV2.getMessageReceipt(receipt)
if (!message) {
throw Error(`Transaction ${receipt.hash} did not emit a message.`)
Expand All @@ -132,7 +145,10 @@ const monitor = async () => {
console.log("Asset Hub to Ethereum")
{
const sourceParaId = 2000
// Step 1. Get the delivery fee for the transaction
const fee = await toEthereumV2.getDeliveryFee(await context.assetHub(), registry)

// Step 2. Create a transfer tx
const transfer = await toEthereumV2.createTransfer(
await context.parachain(sourceParaId),
registry,
Expand All @@ -142,6 +158,8 @@ const monitor = async () => {
amount,
fee,
);

// Step 3. Estimate the cost of the execution cost of the transaction
console.log('call: ', transfer.tx.inner.toHex())
console.log('utx: ', transfer.tx.toHex())
const feePayment = (await transfer.tx.paymentInfo(POLKADOT_ACCOUNT, { withSignedTransaction: true })).toPrimitive() as any
Expand All @@ -156,6 +174,8 @@ const monitor = async () => {
)
).toHuman()
)

// Step 4. Validate the transaction.
const validation = await toEthereumV2.validateTransfer({
sourceParachain: await context.parachain(sourceParaId),
assetHub: await context.assetHub(),
Expand All @@ -164,11 +184,12 @@ const monitor = async () => {
}, transfer)
console.log('validation result', validation)

// Step 5. Check validation logs for errors
if (validation.logs.find(l => l.kind == toPolkadotV2.ValidationKind.Error)) {
throw Error(`validation has one of more errors.`)
}

console.log('Submitting...')
// Step 6. Submit transaction and get receipt for tracking
const response = await toEthereumV2.signAndSend(
await context.parachain(sourceParaId),
transfer,
Expand All @@ -184,7 +205,10 @@ const monitor = async () => {
console.log("Ethereum to Penpal")
{
const destinationChainId: number = 2000
// Step 1. Get the delivery fee for the transaction
const fee = await toPolkadotV2.getDeliveryFee(context.gateway(), registry, WETH_CONTRACT, destinationChainId)

// Step 2. Create a transfer tx
const transfer = await toPolkadotV2.createTransfer(
registry,
ETHEREUM_ACCOUNT_PUBLIC,
Expand All @@ -194,6 +218,8 @@ const monitor = async () => {
amount,
fee,
);

// Step 3. Validate the transaction.
const validation = await toPolkadotV2.validateTransfer({
ethereum: context.ethereum(),
gateway: context.gateway(),
Expand All @@ -203,10 +229,12 @@ const monitor = async () => {
}, transfer)
console.log('validation result', validation)

// Step 4. Check validation logs for errors
if (validation.logs.find(l => l.kind == toPolkadotV2.ValidationKind.Error)) {
throw Error(`validation has one of more errors.`)
}

// Step 5. Estimate the cost of the execution cost of the transaction
const { tx, computed: { totalValue } } = transfer
const estimatedGas = await context.ethereum().estimateGas(tx)
const feeData = await context.ethereum().getFeeData()
Expand All @@ -221,12 +249,14 @@ const monitor = async () => {
console.log('ether sent:', formatEther(totalValue - fee.deliveryFeeInWei))
console.log('dry run:', await context.ethereum().call(tx))

console.log('Submitting...')
// Step 6. Submit the transaction
const response = await ETHEREUM_ACCOUNT.sendTransaction(tx)
const receipt = await response.wait(1)
if (!receipt) {
throw Error(`Transaction ${response.hash} not included.`)
}

// Step 7. Get the message reciept for tracking purposes
const message = await toPolkadotV2.getMessageReceipt(receipt)
if (!message) {
throw Error(`Transaction ${receipt.hash} did not emit a message.`)
Expand All @@ -237,7 +267,10 @@ const monitor = async () => {
console.log("Penpal to Ethereum")
{
const sourceParaId = 2000
// Step 1. Get the delivery fee for the transaction
const fee = await toEthereumV2.getDeliveryFee(await context.assetHub(), registry)

// Step 2. Create a transfer tx
const transfer = await toEthereumV2.createTransfer(
await context.parachain(sourceParaId),
registry,
Expand All @@ -247,6 +280,8 @@ const monitor = async () => {
amount,
fee,
);

// Step 3. Estimate the cost of the execution cost of the transaction
console.log('call: ', transfer.tx.inner.toHex())
console.log('utx: ', transfer.tx.toHex())
const feePayment = (await transfer.tx.paymentInfo(POLKADOT_ACCOUNT, { withSignedTransaction: true })).toPrimitive() as any
Expand All @@ -261,6 +296,8 @@ const monitor = async () => {
)
).toHuman()
)

// Step 4. Validate the transaction.
const validation = await toEthereumV2.validateTransfer({
sourceParachain: await context.parachain(sourceParaId),
assetHub: await context.assetHub(),
Expand All @@ -269,11 +306,12 @@ const monitor = async () => {
}, transfer)
console.log('validation result', validation)

// Step 5. Check validation logs for errors
if (validation.logs.find(l => l.kind == toPolkadotV2.ValidationKind.Error)) {
throw Error(`validation has one of more errors.`)
}

console.log('Submitting...')
// Step 6. Submit transaction and get receipt for tracking
const response = await toEthereumV2.signAndSend(
await context.parachain(sourceParaId),
transfer,
Expand Down

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