Merge pull request #169 from semiotic-ai/168-aggregator-add-support-for-mnemonic-key-path-andor-priv-key

feat(tap-aggregator): allow argument for key derive path to be used w…

Author: ColePBryan

tap_aggregator/src/main.rs

@@ -9,7 +9,7 @@ use alloy_primitives::{Address, FixedBytes, U256};
 use alloy_sol_types::Eip712Domain;
 use anyhow::Result;
 use clap::Parser;
-use ethers_signers::{coins_bip39::English, MnemonicBuilder};
+use ethers_signers::{coins_bip39::English, MnemonicBuilder, Signer};
 use tokio::signal::unix::{signal, SignalKind};
 
 use log::{debug, info};
@@ -24,10 +24,14 @@ struct Args {
     #[arg(long, default_value_t = 8080, env = "TAP_PORT")]
     port: u16,
 
-    /// Gateway mnemonic to be used to sign Receipt Aggregate Vouchers.
+    /// Gateway mnemonic to be used to generate key for signing Receipt Aggregate Vouchers.
     #[arg(long, env = "TAP_MNEMONIC")]
     mnemonic: String,
 
+    /// Gateway key derive path to be used to generate key for signing Receipt Aggregate Vouchers.
+    #[arg(long, default_value = "m/44'/60'/0'/0/0", env = "TAP_KEY_DERIVE_PATH")]
+    key_derive_path: String,
+
     /// Maximum request body size in bytes.
     /// Defaults to 10MB.
     #[arg(long, default_value_t = 10 * 1024 * 1024, env = "TAP_MAX_REQUEST_BODY_SIZE")]
@@ -88,8 +92,11 @@ async fn main() -> Result<()> {
     // Create a wallet from the mnemonic.
     let wallet = MnemonicBuilder::<English>::default()
         .phrase(args.mnemonic.as_str())
+        .derivation_path(&args.key_derive_path)?
         .build()?;
 
+    info!("Wallet address: {:#40x}", wallet.address());
+
     // Create the EIP-712 domain separator.
     let domain_separator = create_eip712_domain(&args)?;