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https://github.com/serai-dex/serai.git
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Have the TransactionPublisher build a TxLegacy from Transaction
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parent
98c3f75fa2
commit
a717ae9ea7
6 changed files with 75 additions and 33 deletions
1
Cargo.lock
generated
1
Cargo.lock
generated
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@ -8334,6 +8334,7 @@ dependencies = [
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"alloy-rpc-client",
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"alloy-rpc-types-eth",
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"alloy-simple-request-transport",
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"alloy-transport",
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"borsh",
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"ciphersuite",
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"const-hex",
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@ -35,6 +35,7 @@ alloy-rlp = { version = "0.3", default-features = false }
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alloy-consensus = { version = "0.3", default-features = false }
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alloy-rpc-types-eth = { version = "0.3", default-features = false }
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alloy-transport = { version = "0.3", default-features = false }
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alloy-simple-request-transport = { path = "../../networks/ethereum/alloy-simple-request-transport", default-features = false }
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alloy-rpc-client = { version = "0.3", default-features = false }
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alloy-provider = { version = "0.3", default-features = false }
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@ -30,14 +30,13 @@ use publisher::TransactionPublisher;
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#[tokio::main]
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async fn main() {
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let db = bin::init();
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let feed = {
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let provider = Arc::new(RootProvider::new(
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ClientBuilder::default().transport(SimpleRequest::new(bin::url()), true),
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));
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Rpc { provider }
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};
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let chain_id = loop {
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match feed.provider.get_chain_id().await {
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match provider.get_chain_id().await {
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Ok(chain_id) => break U256::try_from(chain_id).unwrap(),
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Err(e) => {
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log::error!("couldn't connect to the Ethereum node for the chain ID: {e:?}");
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@ -48,9 +47,9 @@ async fn main() {
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bin::main_loop::<_, KeyGenParams, _>(
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db,
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feed.clone(),
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Rpc { provider: provider.clone() },
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Scheduler::new(SmartContract { chain_id }),
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TransactionPublisher::new({
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TransactionPublisher::new(provider, {
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let relayer_hostname = env::var("ETHEREUM_RELAYER_HOSTNAME")
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.expect("ethereum relayer hostname wasn't specified")
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.to_string();
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@ -1,6 +1,6 @@
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use std::io;
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use ciphersuite::{Ciphersuite, Secp256k1};
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use ciphersuite::{group::GroupEncoding, Ciphersuite, Secp256k1};
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use alloy_core::primitives::U256;
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@ -59,7 +59,10 @@ impl AsMut<[u8]> for OutputId {
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}
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#[derive(Clone, PartialEq, Eq, Debug)]
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pub(crate) struct Output(pub(crate) EthereumInInstruction);
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pub(crate) struct Output {
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pub(crate) key: <Secp256k1 as Ciphersuite>::G,
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pub(crate) instruction: EthereumInInstruction,
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}
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impl ReceivedOutput<<Secp256k1 as Ciphersuite>::G, Address> for Output {
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type Id = OutputId;
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type TransactionId = [u8; 32];
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@ -71,40 +74,43 @@ impl ReceivedOutput<<Secp256k1 as Ciphersuite>::G, Address> for Output {
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fn id(&self) -> Self::Id {
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let mut id = [0; 40];
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id[.. 32].copy_from_slice(&self.0.id.0);
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id[32 ..].copy_from_slice(&self.0.id.1.to_le_bytes());
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id[.. 32].copy_from_slice(&self.instruction.id.0);
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id[32 ..].copy_from_slice(&self.instruction.id.1.to_le_bytes());
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OutputId(id)
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}
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fn transaction_id(&self) -> Self::TransactionId {
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self.0.id.0
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self.instruction.id.0
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}
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fn key(&self) -> <Secp256k1 as Ciphersuite>::G {
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todo!("TODO")
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self.key
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}
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fn presumed_origin(&self) -> Option<Address> {
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Some(Address::from(self.0.from))
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Some(Address::from(self.instruction.from))
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}
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fn balance(&self) -> Balance {
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let coin = coin_to_serai_coin(&self.0.coin).unwrap_or_else(|| {
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let coin = coin_to_serai_coin(&self.instruction.coin).unwrap_or_else(|| {
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panic!(
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"mapping coin from an EthereumInInstruction with coin {}, which we don't handle.",
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"this never should have been yielded"
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)
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});
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Balance { coin, amount: amount_to_serai_amount(coin, self.0.amount) }
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Balance { coin, amount: amount_to_serai_amount(coin, self.instruction.amount) }
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}
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fn data(&self) -> &[u8] {
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&self.0.data
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&self.instruction.data
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}
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fn write<W: io::Write>(&self, writer: &mut W) -> io::Result<()> {
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self.0.write(writer)
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writer.write_all(self.key.to_bytes().as_ref())?;
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self.instruction.write(writer)
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}
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fn read<R: io::Read>(reader: &mut R) -> io::Result<Self> {
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EthereumInInstruction::read(reader).map(Self)
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let key = Secp256k1::read_G(reader)?;
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let instruction = EthereumInInstruction::read(reader)?;
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Ok(Self { key, instruction })
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}
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}
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@ -1,34 +1,68 @@
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use core::future::Future;
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use std::sync::Arc;
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use crate::transaction::Transaction;
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use alloy_transport::{TransportErrorKind, RpcError};
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use alloy_simple_request_transport::SimpleRequest;
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use alloy_provider::RootProvider;
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use tokio::sync::{RwLockReadGuard, RwLock};
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use ethereum_schnorr::PublicKey;
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use ethereum_router::{OutInstructions, Router};
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use crate::transaction::{Action, Transaction};
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#[derive(Clone)]
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pub(crate) struct TransactionPublisher {
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initial_serai_key: PublicKey,
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rpc: Arc<RootProvider<SimpleRequest>>,
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router: Arc<RwLock<Option<Router>>>,
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relayer_url: String,
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}
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impl TransactionPublisher {
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pub(crate) fn new(relayer_url: String) -> Self {
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Self { relayer_url }
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pub(crate) fn new(rpc: Arc<RootProvider<SimpleRequest>>, relayer_url: String) -> Self {
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Self { initial_serai_key: todo!("TODO"), rpc, router: Arc::new(RwLock::new(None)), relayer_url }
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}
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// This will always return Ok(Some(_)) or Err(_), never Ok(None)
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async fn router(&self) -> Result<RwLockReadGuard<'_, Option<Router>>, RpcError<TransportErrorKind>> {
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let router = self.router.read().await;
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// If the router is None, find it on-chain
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if router.is_none() {
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drop(router);
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let mut router = self.router.write().await;
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// Check again if it's None in case a different task already did this
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if router.is_none() {
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let Some(router_actual) = Router::new(self.rpc.clone(), &self.initial_serai_key).await? else {
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Err(TransportErrorKind::Custom("publishing transaction yet couldn't find router on chain. was our node reset?".to_string().into()))?
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};
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*router = Some(router_actual);
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}
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return Ok(router.downgrade());
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}
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Ok(router)
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}
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}
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impl signers::TransactionPublisher<Transaction> for TransactionPublisher {
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type EphemeralError = ();
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type EphemeralError = RpcError<TransportErrorKind>;
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fn publish(
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&self,
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tx: Transaction,
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) -> impl Send + Future<Output = Result<(), Self::EphemeralError>> {
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// Convert from an Action (an internal representation of a signable event) to a TxLegacy
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/* TODO
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match tx.0 {
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Action::SetKey { chain_id: _, nonce: _, key } => self.router.update_serai_key(key, tx.1),
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Action::Batch { chain_id: _, nonce: _, outs } => self.router.execute(outs, tx.1),
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}
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*/
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async move {
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// Convert from an Action (an internal representation of a signable event) to a TxLegacy
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let router = self.router().await?;
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let router = router.as_ref().unwrap();
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let tx = match tx.0 {
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Action::SetKey { chain_id: _, nonce: _, key } => router.update_serai_key(&key, &tx.1),
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Action::Batch { chain_id: _, nonce: _, outs } => router.execute(OutInstructions::from(outs.as_ref()), &tx.1),
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};
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/*
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use tokio::{
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io::{AsyncReadExt, AsyncWriteExt},
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@ -68,6 +68,7 @@ impl smart_contract_scheduler::SmartContract<Rpc> for SmartContract {
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// TODO: Per-batch gas limit
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// TODO: Create several batches
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// TODO: Handle fees
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let action = Action::Batch { chain_id: self.chain_id, nonce, outs };
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vec![(action.clone(), action.eventuality())]
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