Now using macaddr datatype and added test for adding devices and displaynames

src/schemas.rs

@@ -1,5 +1,6 @@
 use chrono::NaiveDateTime;
-use serde::{Deserialize, Serialize};
+use serde::{ser::SerializeStruct, Deserialize, Serialize};
+use sqlx::types::mac_address::MacAddress;
 
 #[derive(Deserialize, Debug, Serialize)]
 pub struct TelemetryMessage {
@@ -32,8 +33,26 @@ pub struct ValueMessage {
     pub timestamp: NaiveDateTime,
 }
 
-#[derive(Deserialize, Debug, Serialize)]
+#[derive(Debug, PartialEq)]
 pub struct Device {
     pub display_name: Option<String>, 
-    pub id: String
+    pub id: MacAddress
+}
+
+
+impl Serialize for Device {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: serde::Serializer,
+    {
+        let mut state = serializer.serialize_struct("Device", 2)?;
+
+        // Serialize each field with custom logic
+        let bytes = self.id.bytes();
+        state.serialize_field("display_name", &self.display_name)?;
+        state.serialize_field("id", &format!("{}{}{}{}{}{}", bytes[0], bytes[1], bytes[2], bytes[3], bytes[4], bytes[5]))?;
+
+        // End the serialization process
+        state.end()
+    }
 }