rpc: Add gw_get_last_submitted_info

crates/block-producer/src/block_producer.rs

@@ -157,6 +157,7 @@ pub struct BlockProducer {
  ckb_genesis_info: CKBGenesisInfo,
  tests_control: Option<TestModeControl>,
  last_committed_l2_block: LastCommittedL2Block,
+ last_submitted_tx_hash: Arc<smol::lock::RwLock<H256>>,
 }
 
 impl BlockProducer {
@@ -183,7 +184,6 @@ impl BlockProducer {
 
  let block_producer = BlockProducer {
  rollup_config_hash,
- store,
  generator,
  chain,
  mem_pool,
@@ -198,10 +198,24 @@ impl BlockProducer {
  committed_at: Instant::now(),
  committed_tip_block_hash: H256::zero(),
  },
+ last_submitted_tx_hash: {
+ let tip_block_hash = store.get_tip_block_hash()?;
+ let committed_info = store
+ .get_l2block_committed_info(&tip_block_hash)?
+ .ok_or_else(|| anyhow!("can't find committed info for tip block"))?;
+ Arc::new(smol::lock::RwLock::new(
+ committed_info.transaction_hash().unpack(),
+ ))
+ },
+ store,
  };
  Ok(block_producer)
  }
 
+ pub fn last_submitted_tx_hash(&self) -> Arc<smol::lock::RwLock<H256>> {
+ self.last_submitted_tx_hash.clone()
+ }
+
  pub async fn handle_event(&mut self, event: ChainEvent) -> Result<()> {
  if let Some(ref tests_control) = self.tests_control {
  match tests_control.payload().await {
@@ -306,12 +320,15 @@ impl BlockProducer {
  return Ok(());
  }
 
+ let submitted_tx_hash = tx.hash();
  match self.submit_block_tx(block_number, tx).await {
  Ok(SubmitResult::Submitted) => {
  self.last_committed_l2_block = LastCommittedL2Block {
  committed_tip_block_hash: l2_tip_block_hash,
  committed_at: Instant::now(),
  };
+ let mut last_submitted_tx_hash = self.last_submitted_tx_hash.write().await;
+ *last_submitted_tx_hash = submitted_tx_hash.into();
  }
  Ok(SubmitResult::Skip) => {}
  Err(err) => {

crates/block-producer/src/runner.rs

@@ -635,6 +635,9 @@ pub fn run(config: Config, skip_config_check: bool) -> Result<()> {
  send_tx_rate_limit: config.rpc.send_tx_rate_limit.clone(),
  server_config: config.rpc_server.clone(),
  fee_config: config.fee.clone(),
+ last_submitted_tx_hash: block_producer
+ .as_ref()
+ .map(|bp| bp.last_submitted_tx_hash()),
  };
 
  let rpc_registry = Registry::new(args);

crates/jsonrpc-types/src/godwoken.rs

@@ -884,6 +884,12 @@ impl From<packed::Fee> for Fee {
  }
 }
 
+#[derive(Clone, Serialize, Deserialize, PartialEq, Eq, Hash, Debug, Default)]
+#[serde(rename_all = "snake_case")]
+pub struct LastL2BlockCommittedInfo {
+ pub transaction_hash: H256,
+}
+
 #[derive(Clone, Serialize, Deserialize, PartialEq, Eq, Hash, Debug, Default)]
 #[serde(rename_all = "snake_case")]
 pub struct L2BlockCommittedInfo {

crates/rpc-server/src/registry.rs

@@ -9,8 +9,8 @@ use gw_jsonrpc_types::{
  ckb_jsonrpc_types::{JsonBytes, Uint128, Uint32},
  godwoken::{
  BackendInfo, ErrorTxReceipt, GlobalState, L2BlockCommittedInfo, L2BlockStatus, L2BlockView,
- L2BlockWithStatus, L2TransactionStatus, L2TransactionWithStatus, NodeInfo, RunResult,
- SUDTFeeConfig, TxReceipt, WithdrawalStatus, WithdrawalWithStatus,
+ L2BlockWithStatus, L2TransactionStatus, L2TransactionWithStatus, LastL2BlockCommittedInfo,
+ NodeInfo, RunResult, SUDTFeeConfig, TxReceipt, WithdrawalStatus, WithdrawalWithStatus,
  },
  test_mode::{ShouldProduceBlock, TestModePayload},
 };
@@ -120,6 +120,7 @@ pub struct RegistryArgs<T> {
  pub send_tx_rate_limit: Option<RPCRateLimit>,
  pub server_config: RPCServerConfig,
  pub fee_config: FeeConfig,
+ pub last_submitted_tx_hash: Option<Arc<smol::lock::RwLock<H256>>>,
 }
 
 pub struct Registry {
@@ -136,6 +137,7 @@ pub struct Registry {
  send_tx_rate_limit: Option<RPCRateLimit>,
  server_config: RPCServerConfig,
  fee_config: FeeConfig,
+ last_submitted_tx_hash: Option<Arc<smol::lock::RwLock<H256>>>,
 }
 
 impl Registry {
@@ -155,6 +157,7 @@ impl Registry {
  send_tx_rate_limit,
  server_config,
  fee_config,
+ last_submitted_tx_hash,
  } = args;
 
  let backend_info = get_backend_info(generator.clone());
@@ -186,6 +189,7 @@ impl Registry {
  send_tx_rate_limit,
  server_config,
  fee_config,
+ last_submitted_tx_hash,
  }
  }
 
@@ -240,12 +244,19 @@ impl Registry {
  )
  .with_method("gw_get_fee_config", get_fee_config)
  .with_method("gw_get_node_info", get_node_info);
+
  if self.node_mode != NodeMode::ReadOnly {
  server = server
  .with_method("gw_submit_l2transaction", submit_l2transaction)
  .with_method("gw_submit_withdrawal_request", submit_withdrawal_request);
  }
 
+ if let Some(last_submitted_tx_hash) = self.last_submitted_tx_hash {
+ server = server
+ .with_data(Data(last_submitted_tx_hash))
+ .with_method("gw_get_last_submitted_info", get_last_submitted_info);
+ }
+
  // Tests
  if let Some(tests_rpc_impl) = self.tests_rpc_impl {
  server = server
@@ -1227,6 +1238,17 @@ async fn get_node_info(backend_info: Data<Vec<BackendInfo>>) -> Result<NodeInfo>
  })
 }
 
+async fn get_last_submitted_info(
+ last_submitted_tx_hash: Data<smol::lock::RwLock<H256>>,
+) -> Result<LastL2BlockCommittedInfo> {
+ Ok(LastL2BlockCommittedInfo {
+ transaction_hash: {
+ let hash: [u8; 32] = (*last_submitted_tx_hash.read().await).into();
+ hash.into()
+ },
+ })
+}
+
 async fn get_fee_config(fee: Data<FeeConfig>) -> Result<gw_jsonrpc_types::godwoken::FeeConfig> {
  let fee_config = gw_jsonrpc_types::godwoken::FeeConfig {
  meta_cycles_limit: fee.meta_cycles_limit.into(),

docs/RPC.md

@@ -923,3 +923,32 @@ Response
  "result": "0xb57c6da2f803413b5781f8c6508320a0ada61a2992bb59ab38f16da2d02099c1"
 }
 ```
+
+### Method `gw_get_last_submitted_info`
+
+Get node last submitted info.
+
+#### Examples
+
+Request
+
+``` json
+{
+ "id": 42,
+ "jsonrpc": "2.0",
+ "method": "gw_get_last_submitted_info",
+ "params": []
+}
+```
+
+Response
+
+``` json
+ {
+ "id": 42,
+ "jsonrpc": "2.0",
+ "result": {
+ "transaction_hash": "0x1536b5af1e42707e0278cf16dd086ec630485883ce3d1c1388f9eb4d8169b119"
+ }
+}
+```