basic http calls

sz-poc-offsite-2025/evm/lightnode/Cargo.toml

@@ -15,3 +15,4 @@ crypto-bigint = { version = "0.5.5", features = ["serde"] }
 risc0-zkvm = { version = "2" }
 indexmap = { version = "1.9.3" }
 url = { version = "2" }
+hex = { version = "0.4" }

sz-poc-offsite-2025/evm/lightnode/src/lib.rs

@@ -1,13 +1,13 @@
 use std::ops::Range;
 
 use executor_http_client::{BasicAuthCredentials, ExecutorHttpClient};
-use nomos::CryptarchiaInfo;
+use nomos::{CryptarchiaInfo, HeaderId};
 use reqwest::{RequestBuilder, Url};
 use serde::{Deserialize, Serialize};
 use tracing::{error, info};
 
-pub const CRYPTARCHIA_INFO: &str = "/cryptarchia/info";
-pub const STORAGE_BLOCK: &str = "/storage/block";
+pub const CRYPTARCHIA_INFO: &str = "cryptarchia/info";
+pub const STORAGE_BLOCK: &str = "storage/block";
 
 mod nomos;
 
@@ -32,22 +32,70 @@ impl NomosClient {
         }
     }
 
-    pub async fn get_cryptarchia_info(&self) -> Result<CryptarchiaInfo, reqwest::Error> {
+    pub async fn get_cryptarchia_info(&self) -> Result<CryptarchiaInfo, String> {
         let url = self.base_url.join(CRYPTARCHIA_INFO).expect("Invalid URL");
 
+        info!("Requesting cryptarchia info from {}", url);
+
         let request = self.reqwest_client.get(url).basic_auth(
-            self.basic_auth.username.clone(),
-            self.basic_auth.password.clone(),
+            &self.basic_auth.username,
+            self.basic_auth.password.as_deref(),
         );
 
         info!("Sending request with creds {:?}", self.basic_auth);
 
-        let response = request.send().await?;
+        let response = request.send().await.map_err(|e| {
+            error!("Failed to send request: {}", e);
+            "Failed to send request".to_string()
+        })?;
+
         if !response.status().is_success() {
             error!("Failed to get cryptarchia info: {}", response.status());
+            return Err("Failed to get cryptarchia info".to_string());
         }
 
-        let info = response.json::<CryptarchiaInfo>().await?;
+        let info = response.json::<CryptarchiaInfo>().await.map_err(|e| {
+            error!("Failed to parse response: {}", e);
+            "Failed to parse response".to_string()
+        })?;
         Ok(info)
     }
+
+    pub async fn get_block(&self, id: HeaderId) -> Result<serde_json::Value, String> {
+        let url = self.base_url.join(STORAGE_BLOCK).expect("Invalid URL");
+
+        info!("Requesting block with HeaderId {}", id);
+
+        let request = self
+            .reqwest_client
+            .post(url)
+            .header("Content-Type", "application/json")
+            .basic_auth(
+                &self.basic_auth.username,
+                self.basic_auth.password.as_deref(),
+            )
+            .body(serde_json::to_string(&id).unwrap());
+
+        let response = request.send().await.map_err(|e| {
+            error!("Failed to send request: {}", e);
+            "Failed to send request".to_string()
+        })?;
+
+        if !response.status().is_success() {
+            error!("Failed to get block: {}", response.status());
+            return Err("Failed to get block".to_string());
+        }
+
+        let json: serde_json::Value = response.json().await.map_err(|e| {
+            error!("Failed to parse JSON: {}", e);
+            "Failed to parse JSON".to_string()
+        })?;
+
+        info!(
+            "Block (raw): {}",
+            serde_json::to_string_pretty(&json).unwrap()
+        );
+
+        Ok(json)
+    }
 }

sz-poc-offsite-2025/evm/lightnode/src/main.rs

@@ -37,5 +37,8 @@ async fn main() -> Result<(), Box<dyn error::Error>> {
     let info = consensus.get_cryptarchia_info().await?;
     println!("Cryptarchia Info: {:?}", info);
 
+    let block = consensus.get_block(info.tip).await?;
+    println!("Block: {:?}", block);
+
     Ok(())
 }

sz-poc-offsite-2025/evm/lightnode/src/nomos.rs

@@ -0,0 +1,52 @@
+use serde::{Deserialize, Deserializer, Serialize};
+
+use hex::FromHex;
+
+// tip	"4f573735fb987453f7467688ea4e034b9161e3ca200526faf5c8ce6db09da180"
+// slot	5085
+// height	1245
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct CryptarchiaInfo {
+    pub tip: HeaderId,
+    pub slot: u64,
+    pub height: u64,
+}
+
+#[derive(Clone, Debug, Eq, PartialEq, Copy, Hash, PartialOrd, Ord)]
+pub struct HeaderId([u8; 32]);
+
+impl<'de> Deserialize<'de> for HeaderId {
+    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let hex_str = String::deserialize(deserializer)?;
+
+        let bytes = <[u8; 32]>::from_hex(hex_str)
+            .map_err(|e| serde::de::Error::custom(format!("Invalid hex string: {}", e)))?;
+
+        Ok(HeaderId(bytes))
+    }
+}
+
+impl Serialize for HeaderId {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        let hex_str = hex::encode(self.0);
+        serializer.serialize_str(&hex_str)
+    }
+}
+
+use std::fmt;
+
+impl fmt::Display for HeaderId {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        for byte in &self.0 {
+            write!(f, "{:02x}", byte)?;
+        }
+        Ok(())
+    }
+}