feat: create base payload, request and response data structures

crates/tuono_lib/src/payload.rs

@@ -0,0 +1,24 @@
+use serde::Serialize;
+
+use crate::request::Location;
+use crate::Request;
+
+#[derive(Serialize)]
+/// This is the data shared to the client
+pub struct Payload<'a> {
+    router: Location<'a>,
+    props: String,
+}
+
+impl<'a> Payload<'a> {
+    pub fn new(req: &Request<'a>, props: String) -> Payload<'a> {
+        Payload {
+            router: req.location(),
+            props,
+        }
+    }
+
+    pub fn client_payload(&self) -> String {
+        serde_json::to_string(&self).unwrap()
+    }
+}