User serde_json for SignedOp serialization

crates/bft-json-crdt/src/json_crdt.rs

@@ -123,12 +123,6 @@ pub struct SignedOp {
     pub depends_on: Vec<SignedDigest>,
 }
 
-impl Display for SignedOp {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "SignedOp({})", self)
-    }
-}
-
 impl SignedOp {
     pub fn id(&self) -> OpId {
         self.inner.id

side-node/src/list_transaction_crdt.rs

@@ -35,7 +35,7 @@ pub(crate) fn new(side_dir: PathBuf) -> (BaseCrdt<CrdtList>, Ed25519KeyPair) {
     (bft_crdt, keys)
 }
 
-pub(crate) fn send(
+pub(crate) fn create(
     bft_crdt: &mut BaseCrdt<CrdtList>,
     keys: &Ed25519KeyPair,
 ) -> bft_json_crdt::json_crdt::SignedOp {

side-node/src/websocket/mod.rs

@@ -51,10 +51,10 @@ pub(crate) async fn start(keys: Ed25519KeyPair, bft_crdt: &mut BaseCrdt<CrdtList
         let signed_op = if let "exit" = line.as_str() {
             break;
         } else {
-            let op = list_transaction_crdt::send(bft_crdt, &keys);
-            op.to_string()
+            list_transaction_crdt::create(bft_crdt, &keys)
         };
         tracing::info!("sending {:?}", signed_op);
-        handle.text(signed_op).unwrap();
+        let json = serde_json::to_string(&signed_op).unwrap();
+        handle.text(json).unwrap();
     }
 }