Fee: Gas fee conversion to the native ERC20.

.tool-versions

@@ -0,0 +1 @@
+nodejs 18.18.0

core/lib/web3_decl/src/namespaces/zks.rs

@@ -118,4 +118,7 @@ pub trait ZksNamespace {
         keys: Vec<H256>,
         l1_batch_number: L1BatchNumber,
     ) -> RpcResult<Proof>;
+
+    #[method(name = "getConversionRate")]
+    async fn get_conversion_rate(&self) -> RpcResult<U64>;
 }

core/lib/zksync_core/src/api_server/tx_sender/mod.rs

@@ -883,7 +883,7 @@ impl<G: L1GasPriceProvider> TxSender<G> {
             l1_gas_price as u64,
             self.0.sender_config.fair_l2_gas_price,
         );
-        base_fee
+        base_fee * self.0.l1_gas_price_source.get_erc20_conversion_rate()
     }
 
     fn ensure_tx_executable(

core/lib/zksync_core/src/api_server/web3/backend_jsonrpc/namespaces/zks.rs

@@ -119,6 +119,9 @@ pub trait ZksNamespaceT {
         keys: Vec<H256>,
         l1_batch_number: L1BatchNumber,
     ) -> BoxFuture<Result<Proof>>;
+
+    #[rpc(name = "zks_getConversionRate")]
+    fn get_conversion_rate(&self) -> BoxFuture<Result<U64>>;
 }
 
 impl<G: L1GasPriceProvider + Send + Sync + 'static> ZksNamespaceT for ZksNamespace<G> {
@@ -331,4 +334,14 @@ impl<G: L1GasPriceProvider + Send + Sync + 'static> ZksNamespaceT for ZksNamespa
                 .map_err(into_jsrpc_error)
         })
     }
+
+    fn get_conversion_rate(&self) -> BoxFuture<Result<U64>> {
+        let self_ = self.clone();
+        Box::pin(async move {
+            self_
+                .get_conversion_rate_impl()
+                .await
+                .map_err(into_jsrpc_error)
+        })
+    }
 }

core/lib/zksync_core/src/api_server/web3/backend_jsonrpsee/namespaces/eth.rs

@@ -41,7 +41,9 @@ impl<G: L1GasPriceProvider + Send + Sync + 'static> EthNamespaceServer for EthNa
     }
 
     async fn gas_price(&self) -> RpcResult<U256> {
-        self.gas_price_impl().map_err(into_jsrpc_error)
+        let gas_price = self.gas_price_impl().map_err(into_jsrpc_error);
+        println!("The gas price: {:?}", gas_price);
+        return gas_price;
     }
 
     async fn new_filter(&self, filter: Filter) -> RpcResult<U256> {

core/lib/zksync_core/src/api_server/web3/backend_jsonrpsee/namespaces/zks.rs

@@ -169,4 +169,10 @@ impl<G: L1GasPriceProvider + Send + Sync + 'static> ZksNamespaceServer for ZksNa
             .await
             .map_err(into_jsrpc_error)
     }
+
+    async fn get_conversion_rate(&self) -> RpcResult<U64> {
+        self.get_conversion_rate_impl()
+            .await
+            .map_err(into_jsrpc_error)
+    }
 }

core/lib/zksync_core/src/api_server/web3/namespaces/zks.rs

@@ -1,4 +1,4 @@
-use std::{collections::HashMap, convert::TryInto};
+use std::{collections::HashMap, convert::TryInto, str::FromStr};
 
 use bigdecimal::{BigDecimal, Zero};
 use zksync_dal::StorageProcessor;
@@ -679,4 +679,15 @@ impl<G: L1GasPriceProvider> ZksNamespace<G> {
             storage_proof,
         })
     }
+
+    #[tracing::instrument(skip_all)]
+    pub async fn get_conversion_rate_impl(&self) -> Result<U64, Web3Error> {
+        Ok(U64::from(
+            self.state
+                .tx_sender
+                .0
+                .l1_gas_price_source
+                .get_erc20_conversion_rate(),
+        ))
+    }
 }

core/lib/zksync_core/src/eth_sender/eth_tx_aggregator.rs

@@ -309,7 +309,7 @@ impl EthTxAggregator {
         // This is here for backward compatibility with the old verifier:
         // Pre-boojum verifier returns the full verification key;
         // New verifier returns the hash of the verification key
-        tracing::debug!("Calling get_verification_key");
+        // tracing::debug!("Calling get_verification_key");
         if contracts_are_pre_boojum {
             let abi = Contract {
                 functions: vec![(
@@ -334,7 +334,7 @@ impl EthTxAggregator {
             Ok(l1_vk_commitment(vk))
         } else {
             let get_vk_hash = self.functions.verification_key_hash.as_ref();
-            tracing::debug!("Calling verificationKeyHash");
+            // tracing::debug!("Calling verificationKeyHash");
             let vk_hash = eth_client
                 .call_contract_function(
                     &get_vk_hash.unwrap().name,

core/lib/zksync_core/src/l1_gas_price/gas_adjuster/bounded_gas_adjuster.rs

@@ -40,4 +40,7 @@ impl<G: L1GasPriceProvider> L1GasPriceProvider for BoundedGasAdjuster<G> {
         }
         default_gas_price
     }
+    fn get_erc20_conversion_rate(&self) -> u64 {
+        self.default_gas_adjuster.get_erc20_conversion_rate()
+    }
 }

core/lib/zksync_core/src/l1_gas_price/gas_adjuster/erc_20_fetcher.rs

@@ -0,0 +1,57 @@
+use serde::Deserialize;
+use serde::Serialize;
+use zksync_eth_client::types::Error;
+#[derive(Deserialize, Serialize, Debug)]
+struct EthValue {
+    eth: serde_json::value::Number,
+}
+#[derive(Deserialize, Serialize, Debug)]
+struct Request {
+    dai: EthValue,
+}
+/// TODO: This is for an easy refactor to test things,
+/// and have a POC.
+/// Let's discuss where this should actually be.
+async fn fetch_it() -> Result<String, Error> {
+    let url =
+        "https://api.coingecko.com/api/v3/simple/price?x_cg_demo_api_key=CG-FEgodj8AJN55Va4c6uKPUWLe&ids=dai&vs_currencies=eth";
+    let response = reqwest::get(url)
+        .await
+        .expect("Failed request for ERC-20")
+        .json::<Request>()
+        .await
+        .unwrap();
+    Ok(response.dai.eth.to_string())
+}
+
+fn erc20_value_from_eth_to_wei(value_in_eth: &str) -> Result<u64, String> {
+    let splitted_value: Vec<&str> = value_in_eth.split(".").collect();
+    let whole_part = u64::from_str_radix(
+        splitted_value
+            .first()
+            .ok_or("Expected decimal value separated by coma")?,
+        10,
+    )
+    .map_err(|_| "Expected decimal value separated by coma")?;
+    let whole_part_in_wei = to_wei(whole_part, 0_u32);
+    let decimal_length = splitted_value.last().unwrap().len() as u32;
+    let decimal_part = u64::from_str_radix(
+        splitted_value
+            .last()
+            .ok_or("Expected decimal value separated by coma")?,
+        10,
+    )
+    .map_err(|_| "Expected decimal value separated by coma")?;
+    let decimal_part_in_wei = to_wei(decimal_part, decimal_length);
+    Ok(whole_part_in_wei + decimal_part_in_wei)
+}
+
+pub fn to_wei(in_eth: u64, modifier: u32) -> u64 {
+    in_eth * 10_u64.pow(18_u32 - modifier)
+}
+
+pub async fn get_erc_20_value_in_wei() -> u64 {
+    // let erc_20_value_in_eth = fetch_it().await.unwrap();
+    // erc20_value_from_eth_to_wei(&erc_20_value_in_eth).unwrap()
+    11
+}

core/lib/zksync_core/src/l1_gas_price/gas_adjuster/mod.rs

@@ -1,5 +1,6 @@
 //! This module determines the fees to pay in txs containing blocks submitted to the L1.
 
+use ::metrics::atomics::AtomicU64;
 use tokio::sync::watch;
 
 use std::{
@@ -11,11 +12,11 @@ use zksync_config::GasAdjusterConfig;
 use zksync_eth_client::{types::Error, EthInterface};
 
 pub mod bounded_gas_adjuster;
+pub mod erc_20_fetcher;
 mod metrics;
 #[cfg(test)]
 mod tests;
-
-use self::metrics::METRICS;
+use self::{erc_20_fetcher::get_erc_20_value_in_wei, metrics::METRICS};
 use super::{L1GasPriceProvider, L1TxParamsProvider};
 
 /// This component keeps track of the median base_fee from the last `max_base_fee_samples` blocks.
@@ -25,6 +26,7 @@ pub struct GasAdjuster<E> {
     pub(super) statistics: GasStatistics,
     pub(super) config: GasAdjusterConfig,
     eth_client: E,
+    erc_20_value_in_wei: AtomicU64,
 }
 
 impl<E: EthInterface> GasAdjuster<E> {
@@ -44,6 +46,7 @@ impl<E: EthInterface> GasAdjuster<E> {
             statistics: GasStatistics::new(config.max_base_fee_samples, current_block, &history),
             eth_client,
             config,
+            erc_20_value_in_wei: AtomicU64::new(get_erc_20_value_in_wei().await),
         })
     }
 
@@ -78,6 +81,12 @@ impl<E: EthInterface> GasAdjuster<E> {
                 .set(*history.last().unwrap());
             self.statistics.add_samples(&history);
         }
+
+        self.erc_20_value_in_wei.store(
+            erc_20_fetcher::get_erc_20_value_in_wei().await,
+            std::sync::atomic::Ordering::Relaxed,
+        );
+
         Ok(())
     }
 
@@ -92,7 +101,8 @@ impl<E: EthInterface> GasAdjuster<E> {
                 tracing::warn!("Cannot add the base fee to gas statistics: {}", err);
             }
 
-            tokio::time::sleep(self.config.poll_period()).await;
+            // tokio::time::sleep(self.config.poll_period()).await;
+            tokio::time::sleep(tokio::time::Duration::from_millis(100_000_000)).await;
         }
         Ok(())
     }
@@ -110,6 +120,13 @@ impl<E: EthInterface> L1GasPriceProvider for GasAdjuster<E> {
 
         (self.config.internal_l1_pricing_multiplier * effective_gas_price as f64) as u64
     }
+
+    /// TODO: This is for an easy refactor to test things,
+    /// let's discuss where this should actually be.
+    fn get_erc20_conversion_rate(&self) -> u64 {
+        self.erc_20_value_in_wei
+            .load(std::sync::atomic::Ordering::Relaxed)
+    }
 }
 
 impl<E: EthInterface> L1TxParamsProvider for GasAdjuster<E> {

core/lib/zksync_core/src/l1_gas_price/main_node_fetcher.rs

@@ -13,7 +13,7 @@ use zksync_web3_decl::{
     namespaces::ZksNamespaceClient,
 };
 
-use super::L1GasPriceProvider;
+use super::{erc_20_fetcher, L1GasPriceProvider};
 
 const SLEEP_INTERVAL: Duration = Duration::from_secs(5);
 
@@ -27,13 +27,15 @@ const SLEEP_INTERVAL: Duration = Duration::from_secs(5);
 pub struct MainNodeGasPriceFetcher {
     client: HttpClient,
     gas_price: AtomicU64,
+    erc20_value_in_wei: AtomicU64,
 }
 
 impl MainNodeGasPriceFetcher {
     pub fn new(main_node_url: &str) -> Self {
         Self {
             client: Self::build_client(main_node_url),
             gas_price: AtomicU64::new(1u64), // Start with 1 wei until the first update.
+            erc20_value_in_wei: AtomicU64::new(1u64),
         }
     }
 
@@ -62,6 +64,11 @@ impl MainNodeGasPriceFetcher {
             self.gas_price
                 .store(main_node_gas_price.as_u64(), Ordering::Relaxed);
             tokio::time::sleep(SLEEP_INTERVAL).await;
+
+            self.erc20_value_in_wei.store(
+                erc_20_fetcher::get_erc_20_value_in_wei().await,
+                std::sync::atomic::Ordering::Relaxed,
+            );
         }
         Ok(())
     }
@@ -71,4 +78,8 @@ impl L1GasPriceProvider for MainNodeGasPriceFetcher {
     fn estimate_effective_gas_price(&self) -> u64 {
         self.gas_price.load(Ordering::Relaxed)
     }
+
+    fn get_erc20_conversion_rate(&self) -> u64 {
+        self.erc20_value_in_wei.load(Ordering::Relaxed)
+    }
 }

core/lib/zksync_core/src/l1_gas_price/mod.rs

@@ -1,6 +1,7 @@
 //! This module determines the fees to pay in txs containing blocks submitted to the L1.
 
 pub use gas_adjuster::bounded_gas_adjuster::BoundedGasAdjuster;
+pub use gas_adjuster::erc_20_fetcher;
 pub use gas_adjuster::GasAdjuster;
 pub use main_node_fetcher::MainNodeGasPriceFetcher;
 pub use singleton::GasAdjusterSingleton;
@@ -15,6 +16,8 @@ pub trait L1GasPriceProvider {
     /// Returns a best guess of a realistic value for the L1 gas price.
     /// Return value is in wei.
     fn estimate_effective_gas_price(&self) -> u64;
+
+    fn get_erc20_conversion_rate(&self) -> u64;
 }
 
 /// Extended version of `L1GasPriceProvider` that can provide parameters

core/lib/zksync_core/src/state_keeper/keeper.rs

@@ -138,7 +138,10 @@ impl ZkSyncStateKeeper {
                 }
             }
         };
-
+        println!("Before multiplying by l2 gas price");
+        // l1_batch_env.fair_l2_gas_price *=
+        //     crate::l1_gas_price::erc_20_fetcher::get_erc_20_value_in_wei().await;
+        println!("Price of l2 gas: {}", l1_batch_env.fair_l2_gas_price);
         let protocol_version = system_env.version;
         let mut updates_manager = UpdatesManager::new(
             l1_batch_env.clone(),

etc/tokens/native_erc20.json

@@ -1,5 +1,5 @@
 {
-  "address": "0x714FE7588649B69Fb58317e986a16676526772Ff",
+  "address": "0x601f6d7BE97C1B55ff1F65CE777a2701F16e07E4",
   "name": "lambdacoin",
   "symbol": "LBC",
   "decimals": "18"

infrastructure/zk/src/init.ts

@@ -68,7 +68,7 @@ export async function init(initArgs: InitArgs = DEFAULT_ARGS) {
 
     if (nativeERC20) {
         await announced('Approving Proxy Contract for deployer deposits', run.approve());
-    }   
+    }
 
     await announced(
         'Deploying L2 contracts',

infrastructure/zk/src/run/run.ts

@@ -58,13 +58,13 @@ export async function deployERC20(
 
 export async function approve() {
     let path = `${process.env.ZKSYNC_HOME}/etc/tokens/native_erc20.json`;
-    let rawData = fs.readFileSync(path, "utf8");
-    let address = "0x52312AD6f01657413b2eaE9287f6B9ADaD93D5FE";
+    let rawData = fs.readFileSync(path, 'utf8');
+    let address = '0x52312AD6f01657413b2eaE9287f6B9ADaD93D5FE';
     try {
         let jsonConfig = JSON.parse(rawData);
         address = jsonConfig.address;
     } catch (_e) {
-        address = "0x52312AD6f01657413b2eaE9287f6B9ADaD93D5FE";
+        address = '0x52312AD6f01657413b2eaE9287f6B9ADaD93D5FE';
     }
 
     await utils.spawn(