huskies: merge 770

server/src/http/mod.rs

@@ -82,6 +82,7 @@ pub fn build_routes(
         .nest("/docs", docs_service.swagger_ui())
         .at("/ws", get(ws::ws_handler))
         .at("/crdt-sync", get(crate::crdt_sync::crdt_sync_handler))
+        .at("/rpc", post(rpc_http_handler))
         .at(
             "/agents/:story_id/:agent_name/stream",
             get(agents_sse::agent_stream),
@@ -133,6 +134,28 @@ pub fn build_routes(
     route.data(ctx_arc)
 }
 
+/// HTTP bridge for the read-RPC protocol.
+///
+/// Accepts a JSON [`RpcFrame::RpcRequest`] body and returns the corresponding
+/// [`RpcFrame::RpcResponse`].  This allows HTTP clients (e.g. the frontend) to
+/// call read-RPC methods without maintaining a `/crdt-sync` WebSocket connection.
+#[poem::handler]
+pub async fn rpc_http_handler(body: poem::web::Json<serde_json::Value>) -> poem::Response {
+    let text = serde_json::to_string(&body.0).unwrap_or_default();
+    match crate::crdt_sync::try_handle_rpc_text(&text) {
+        Some(response) => {
+            let json = serde_json::to_string(&response).unwrap_or_default();
+            poem::Response::builder()
+                .status(poem::http::StatusCode::OK)
+                .header(poem::http::header::CONTENT_TYPE, "application/json")
+                .body(json)
+        }
+        None => poem::Response::builder()
+            .status(poem::http::StatusCode::BAD_REQUEST)
+            .body("Invalid RPC request"),
+    }
+}
+
 /// Debug HTTP endpoint: `GET /debug/crdt[?story_id=<id>]`
 ///
 /// Returns the raw in-memory CRDT state as JSON.  Accepts an optional