refactor: use Url in the config

src/config.rs

@@ -66,34 +66,27 @@ pub struct BuilderConfig {
     /// URL for Host RPC node.
     #[from_env(
         var = "HOST_RPC_URL",
-        desc = "URL for Host RPC node. This MUST be a valid HTTP or WS URL, starting with http://, https://, ws:// or wss://",
-        infallible
+        desc = "URL for Host RPC node. This MUST be a valid HTTP or WS URL, starting with http://, https://, ws:// or wss://"
     )]
-    pub host_rpc_url: Cow<'static, str>,
+    pub host_rpc_url: url::Url,
 
     /// URL for the Rollup RPC node.
     #[from_env(
         var = "ROLLUP_RPC_URL",
-        desc = "URL for Rollup RPC node. This MUST be a valid WS url starting with ws:// or wss://. Http providers are not supported.",
-        infallible
+        desc = "URL for Rollup RPC node. This MUST be a valid WS url starting with ws:// or wss://. Http providers are not supported."
     )]
-    pub ru_rpc_url: Cow<'static, str>,
+    pub ru_rpc_url: url::Url,
 
     /// URL of the tx pool to poll for incoming transactions.
-    #[from_env(
-        var = "TX_POOL_URL",
-        desc = "URL of the tx pool to poll for incoming transactions",
-        infallible
-    )]
-    pub tx_pool_url: Cow<'static, str>,
+    #[from_env(var = "TX_POOL_URL", desc = "URL of the tx pool to poll for incoming transactions")]
+    pub tx_pool_url: url::Url,
 
     /// Additional RPC URLs to which the builder should broadcast transactions.
     /// * Should not include the `HOST_RPC_URL` value, as that is already sent to by default.
     /// * Setting this can incur `already known` errors.
     #[from_env(
         var = "TX_BROADCAST_URLS",
         desc = "Additional RPC URLs to which the builder broadcasts transactions",
-        infallible,
         optional
     )]
     pub tx_broadcast_urls: Vec<Cow<'static, str>>,
@@ -190,15 +183,13 @@ impl BuilderConfig {
             tokio::sync::OnceCell::const_new();
 
         ONCE.get_or_try_init(|| async {
-            let url = url::Url::parse(&self.ru_rpc_url)?;
-
-            let scheme = url.scheme();
+            let scheme = self.ru_rpc_url.scheme();
             eyre::ensure!(
                 scheme == "ws" || scheme == "wss",
                 "Invalid Rollup RPC URL scheme: {scheme}. Expected ws:// or wss://"
             );
 
-            RootProvider::connect_with(BuiltInConnectionString::Ws(url, None))
+            RootProvider::connect_with(BuiltInConnectionString::Ws(self.ru_rpc_url.clone(), None))
                 .await
                 .map_err(Into::into)
         })
@@ -216,7 +207,7 @@ impl BuilderConfig {
             .with_nonce_management(SimpleNonceManager::default())
             .fetch_chain_id()
             .wallet(EthereumWallet::from(builder_signer))
-            .connect(&self.host_rpc_url)
+            .connect(self.host_rpc_url.as_str())
             .await
             .map_err(Into::into)
     }
@@ -225,8 +216,8 @@ impl BuilderConfig {
     pub fn connect_additional_broadcast(&self) -> Vec<RootProvider> {
         self.tx_broadcast_urls
             .iter()
-            .map(|url_str| {
-                let url = url::Url::parse(url_str).expect("failed to parse URL");
+            .map(|url| {
+                let url = url.parse::<url::Url>().expect("Invalid URL in tx_broadcast_urls");
                 RootProvider::new_http(url)
             })
             .collect::<Vec<_>>()

src/tasks/cache/bundle.rs

@@ -51,7 +51,7 @@ impl BundlePoller {
 
     /// Fetches bundles from the transaction cache and returns them.
     pub async fn check_bundle_cache(&mut self) -> eyre::Result<Vec<TxCacheBundle>> {
-        let bundle_url: Url = Url::parse(&self.config.tx_pool_url)?.join("bundles")?;
+        let bundle_url: Url = self.config.tx_pool_url.join("bundles")?;
         let token =
             self.token.secret().await.map_err(|e| eyre::eyre!("Failed to read token: {e}"))?;
 

src/tasks/cache/tx.rs

@@ -50,7 +50,7 @@ impl TxPoller {
 
     /// Polls the transaction cache for transactions.
     pub async fn check_tx_cache(&mut self) -> Result<Vec<TxEnvelope>, Error> {
-        let url: Url = Url::parse(&self.config.tx_pool_url)?.join("transactions")?;
+        let url: Url = self.config.tx_pool_url.join("transactions")?;
         self.client
             .get(url)
             .send()

src/tasks/submit/prep.rs

@@ -16,7 +16,6 @@ use signet_constants::SignetSystemConstants;
 use signet_sim::BuiltBlock;
 use signet_types::{SignRequest, SignResponse};
 use signet_zenith::BundleHelper;
-use std::sync::OnceLock;
 use tracing::Instrument;
 
 /// Preparation logic for transactions issued to the host chain by the
@@ -35,8 +34,8 @@ pub struct SubmitPrep<'a> {
     constants: SignetSystemConstants,
 
     // Memoized quincey request and response
-    sig_request: OnceLock<SignRequest>,
-    quincey_resp: OnceLock<SignResponse>,
+    sig_request: std::sync::OnceLock<SignRequest>,
+    quincey_resp: tokio::sync::OnceCell<SignResponse>,
 }
 
 impl<'a> SubmitPrep<'a> {
@@ -78,12 +77,12 @@ impl<'a> SubmitPrep<'a> {
 
     /// Get the quincey signature response for the block.
     async fn quincey_resp(&self) -> eyre::Result<&SignResponse> {
-        if let Some(resp) = self.quincey_resp.get() {
-            return Ok(resp);
-        }
-
-        let sig = self.quincey.get_signature(self.sig_request()).await?;
-        Ok(self.quincey_resp.get_or_init(|| sig))
+        self.quincey_resp
+            .get_or_try_init(|| async {
+                let sig_request = self.sig_request();
+                self.quincey.get_signature(sig_request).await
+            })
+            .await
     }
 
     /// Get the signature components from the response.

src/test_utils.rs

@@ -21,8 +21,8 @@ pub fn setup_test_config() -> Result<BuilderConfig> {
     let config = BuilderConfig {
         host_chain_id: signet_constants::pecorino::HOST_CHAIN_ID,
         ru_chain_id: signet_constants::pecorino::RU_CHAIN_ID,
-        host_rpc_url: "https://host-rpc.pecorino.signet.sh".into(),
-        ru_rpc_url: "https://rpc.pecorino.signet.sh".into(),
+        host_rpc_url: "https://host-rpc.pecorino.signet.sh".parse().unwrap(),
+        ru_rpc_url: "https://rpc.pecorino.signet.sh".parse().unwrap(),
         tx_broadcast_urls: vec!["http://localhost:9000".into()],
         zenith_address: Address::default(),
         quincey_url: "http://localhost:8080".into(),
@@ -31,7 +31,7 @@ pub fn setup_test_config() -> Result<BuilderConfig> {
         builder_key: "0000000000000000000000000000000000000000000000000000000000000000".into(),
         builder_rewards_address: Address::default(),
         rollup_block_gas_limit: 3_000_000_000,
-        tx_pool_url: "http://localhost:9000/".into(),
+        tx_pool_url: "http://localhost:9000/".parse().unwrap(),
         oauth: OAuthConfig {
             oauth_client_id: "some_client_id".into(),
             oauth_client_secret: "some_client_secret".into(),