fix(admin): id in NodeInfo is string instead of B256 (alloy-rs#1038)

* fix(admin): id in NodeInfo is string instead of B256

Signed-off-by: jsvisa <delweng@gmail.com>

* fix testcase

Signed-off-by: jsvisa <delweng@gmail.com>

* apply code review

Signed-off-by: jsvisa <delweng@gmail.com>

---------

Signed-off-by: jsvisa <delweng@gmail.com>

crates/node-bindings/src/geth.rs

@@ -2,7 +2,7 @@
 
 use crate::unused_port;
 use alloy_genesis::{CliqueConfig, Genesis};
-use alloy_primitives::{hex, Address, B256};
+use alloy_primitives::Address;
 use k256::ecdsa::SigningKey;
 use std::{
     borrow::Cow,
@@ -121,7 +121,7 @@ impl GethInstance {
     /// Blocks until geth adds the specified peer, using 20s as the timeout.
     ///
     /// Requires the stderr to be present in the `GethInstance`.
-    pub fn wait_to_add_peer(&mut self, id: B256) -> Result<(), GethInstanceError> {
+    pub fn wait_to_add_peer(&mut self, id: &str) -> Result<(), GethInstanceError> {
         let mut stderr = self.pid.stderr.as_mut().ok_or(GethInstanceError::NoStderr)?;
         let mut err_reader = BufReader::new(&mut stderr);
         let mut line = String::new();
@@ -132,8 +132,8 @@ impl GethInstance {
             err_reader.read_line(&mut line).map_err(GethInstanceError::ReadLineError)?;
 
             // geth ids are truncated
-            let truncated_id = hex::encode(&id.0[..8]);
-            if line.contains("Adding p2p peer") && line.contains(&truncated_id) {
+            let truncated_id = if id.len() > 16 { &id[..16] } else { id };
+            if line.contains("Adding p2p peer") && line.contains(truncated_id) {
                 return Ok(());
             }
         }

crates/provider/src/ext/admin.rs

@@ -116,7 +116,7 @@ mod test {
 
         let added = provider2.add_peer(&node1_enode).await.unwrap();
         assert!(added);
-        geth2.wait_to_add_peer(node1_id).unwrap();
+        geth2.wait_to_add_peer(&node1_id).unwrap();
         let peers = provider2.peers().await.unwrap();
         assert_eq!(peers[0].enode, node1_enode);
     }

crates/rpc-types-admin/src/admin.rs

@@ -10,10 +10,13 @@ use std::{
 
 /// This includes general information about a running node, spanning networking and protocol
 /// details.
+///
+/// See [geth's `NodeInfo` struct](https://github.com/ethereum/go-ethereum/blob/v1.14.0/p2p/server.go#L1078)
+/// for the source of each field.
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct NodeInfo {
-    /// Unique node identifier.
-    pub id: B256,
+    /// Unique node identifier(also the encryption key).
+    pub id: String,
     /// The node's user agent, containing a client name, version, OS, and other metadata.
     pub name: String,
     /// The enode URL of the connected node.