Configure Gas Price Oracle with CLI arguments (#2664)

Co-authored-by: Aditya Pandey <aditya.p@Aditya-P.local>
Co-authored-by: Matthias Seitz <matthias.seitz@outlook.de>

crates/rpc/rpc-builder/src/eth.rs

@@ -46,3 +46,11 @@ impl Default for EthConfig {
         }
     }
 }
+
+impl EthConfig {
+    /// Configures the gas price oracle settings
+    pub fn with_gpo_config(mut self, gas_oracle_config: GasPriceOracleConfig) -> Self {
+        self.gas_oracle = gas_oracle_config;
+        self
+    }
+}

crates/rpc/rpc-builder/src/lib.rs

@@ -349,6 +349,10 @@ impl RpcModuleConfig {
     pub fn builder() -> RpcModuleConfigBuilder {
         RpcModuleConfigBuilder::default()
     }
+    /// Returns a new RPC module config given the eth namespace config
+    pub fn new(eth: EthConfig) -> Self {
+        Self { eth }
+    }
 }
 
 /// Configures [RpcModuleConfig]

crates/rpc/rpc/src/eth/gas_oracle.rs

@@ -59,6 +59,26 @@ impl Default for GasPriceOracleConfig {
     }
 }
 
+impl GasPriceOracleConfig {
+    /// Creating a new gpo config with blocks, ignoreprice, maxprice and percentile
+    pub fn new(
+        blocks: Option<u32>,
+        ignore_price: Option<u64>,
+        max_price: Option<u64>,
+        percentile: Option<u32>,
+    ) -> Self {
+        Self {
+            blocks: blocks.unwrap_or(20),
+            percentile: percentile.unwrap_or(60),
+            max_header_history: 1024,
+            max_block_history: 1024,
+            default: None,
+            max_price: max_price.map(U256::from).or(Some(DEFAULT_MAX_PRICE)),
+            ignore_price: ignore_price.map(U256::from).or(Some(DEFAULT_IGNORE_PRICE)),
+        }
+    }
+}
+
 /// Calculates a gas price depending on recent blocks.
 #[derive(Debug)]
 pub struct GasPriceOracle<Client> {