Fix serialization.

src/notifications/events/mod.rs

@@ -1,8 +1,27 @@
 use serde::{Deserialize, Serialize};
+use serde_json::{json, Value};
 
 pub mod message;
 
-#[derive(Serialize, Deserialize, Debug)]
+#[derive(Serialize, Deserialize, Debug, Clone)]
 pub enum Notification {
     MessageCreate(message::Create),
 }
+
+impl Notification {
+    pub fn serialize(self) -> String {
+        if let Value::Object(obj) = json!(self) {
+            let (key, value) = obj.iter().next().unwrap();
+
+            if let Value::Object(data) = value {
+                let mut data = data.clone();
+                data.insert("type".to_string(), Value::String(key.to_string()));
+                json!(data).to_string()
+            } else {
+                unreachable!()
+            }
+        } else {
+            unreachable!()
+        }
+    }
+}