Router, add xrpc and router abstraction to router

rust/src/router/xrpc.rs

@@ -0,0 +1,53 @@
+use axum::{
+  Json,
+  extract::Path,
+  routing::{
+    get,
+    method_routing::MethodRouter,
+  },
+  http::StatusCode,
+  Router as axumRouter,
+};
+use serde_json::{Value, json};
+
+enum Nsid {
+  Nsid(String),
+  NotImplemented,
+}
+
+pub struct XrpcEndpoint {
+  nsid: Nsid,
+  resolver: MethodRouter,
+}
+
+impl XrpcEndpoint {
+
+  pub fn add_to_router(self, router: axumRouter) -> axumRouter {
+    let path = match self.nsid {
+      Nsid::Nsid(s) => &("/xrpc/".to_owned() + &s),
+      Nsid::NotImplemented => "/xrpc/{*nsid}",
+    };
+
+    router.route(path, self.resolver)
+  }
+
+  pub fn not_implemented() -> XrpcEndpoint {
+    XrpcEndpoint {
+      nsid: Nsid::NotImplemented,
+      resolver: get(Self::not_implemented_resolver)
+        .post(Self::not_implemented_resolver),
+    }
+  }
+
+  async fn not_implemented_resolver(Path(_nsid): Path<String>) -> (StatusCode, Json<Value>) {
+    (
+      StatusCode::NOT_IMPLEMENTED,
+      Json(json!({
+        "error": "MethodNotImplemented",
+        "message": "Method Not Implemented"
+      }))
+    )
+  }
+  
+}
+