Custom implement of Serialize for HandshakeMessage

src/network.rs

@@ -2,7 +2,8 @@ use std::collections::HashMap;
 
 use anyhow::Result;
 use rand::{thread_rng, RngCore};
-use serde::{Deserialize, Serialize};
+use serde::ser::SerializeStruct;
+use serde::{Deserialize, Serialize, Serializer};
 use serde_json::Value;
 use sp_client::bitcoin::consensus::serialize;
 use sp_client::bitcoin::hex::DisplayHex;
@@ -168,7 +169,7 @@ impl NewTxMessage {
     }
 }
 
-#[derive(Debug, PartialEq, Serialize, Deserialize, Tsify)]
+#[derive(Debug, PartialEq, Deserialize, Tsify)]
 #[tsify(into_wasm_abi, from_wasm_abi)]
 pub struct HandshakeMessage {
     pub sp_address: String,
@@ -176,6 +177,32 @@ pub struct HandshakeMessage {
     pub processes_list: HashMap<OutPoint, Process>,
 }
 
+impl Serialize for HandshakeMessage {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let mut state = serializer.serialize_struct("HandshakeMessage", 3)?;
+
+        state.serialize_field("sp_address", &self.sp_address)?;
+
+        let peers_list: HashMap<String, &OutPoint> = self
+            .peers_list
+            .iter()
+            .map(|(member, outpoint)| {
+                let member_str = serde_json::to_string(member).unwrap(); 
+                (member_str, outpoint)
+            })
+            .collect();
+        state.serialize_field("peers_list", &peers_list)?;
+
+        // Serialize `processes_list` normally
+        state.serialize_field("processes_list", &self.processes_list)?;
+
+        state.end()
+    }
+}
+
 impl HandshakeMessage {
     pub fn new(sp_address: String, peers_list: HashMap<Member, OutPoint>, processes_list: HashMap<OutPoint, Process>) -> Self {
         Self {