Starting to format out BFT-CRDTs.

side-node/src/websocket/mod.rs

@@ -1,18 +1,60 @@
-use bft_json_crdt::keypair::Ed25519KeyPair;
+use bft_crdt_derive::add_crdt_fields;
+use bft_json_crdt::{
+    json_crdt::{BaseCrdt, CrdtNode, IntoCrdtNode},
+    keypair::make_keypair,
+    list_crdt::ListCrdt,
+    op::ROOT_ID,
+};
+use serde::{Deserialize, Serialize};
 use tokio::time::{self};
 use websockets::WebSocket;
 
 /// Starts a websocket and periodically sends a BFT-CRDT message to the websocket server
-pub(crate) async fn start(keys: Ed25519KeyPair) -> Result<(), websockets::WebSocketError> {
+pub(crate) async fn start() -> Result<(), websockets::WebSocketError> {
     let mut ws = WebSocket::connect("ws://localhost:8080/").await?;
 
     let mut interval = time::interval(time::Duration::from_secs(2));
+
+    let json = generate_transaction().unwrap();
+    let keys = make_keypair();
+    let mut bft_crdt = BaseCrdt::<ListExample>::new(&keys);
+
+    // next job is to keep adding to this guy
+    let _a = bft_crdt.doc.list.insert(ROOT_ID, 'a').sign(&keys);
+
     loop {
         interval.tick().await;
-        println!("Sending: period");
-        ws.send_text("period".to_string()).await?;
-        let msg = ws.receive().await?;
+        println!("Sending: {}", json);
+        ws.send_text(json.clone()).await?;
 
+        // TODO:  somewhere down in here when we receive socket input from other nodes
+
+        let msg = ws.receive().await?;
         println!("Received: {:?}", msg);
     }
 }
+
+#[add_crdt_fields]
+#[derive(Clone, CrdtNode)]
+struct ListExample {
+    list: ListCrdt<char>, // switch to Transaction as soon as char is working
+}
+
+/// A fake Transaction struct we can use as a simulated payload
+#[derive(Serialize, Deserialize)]
+struct Transaction {
+    from: String,
+    to: String,
+    amount: u64,
+}
+
+fn generate_transaction() -> serde_json::Result<String> {
+    let transaction = Transaction {
+        from: "Alice".to_string(),
+        to: "Bob".to_string(),
+        amount: 100,
+    };
+
+    let json = serde_json::to_string(&transaction).unwrap();
+    Ok(json)
+}