2 files changed, 30 insertions, 0 deletions
diff --git a/src/message/id.rs b/src/message/id.rs
new file mode 100644
index 0000000..385b103
--- /dev/null
+++ b/src/message/id.rs
@@ -0,0 +1,27 @@
+use std::fmt;
+
+use crate::id::Id as BaseId;
+
+// Stable identifier for a [Message]. Prefixed with `M`.
+#[derive(Clone, Debug, Eq, Hash, PartialEq, sqlx::Type, serde::Deserialize, serde::Serialize)]
+#[sqlx(transparent)]
+#[serde(transparent)]
+pub struct Id(BaseId);
+
+impl From<BaseId> for Id {
+    fn from(id: BaseId) -> Self {
+        Self(id)
+    }
+}
+
+impl Id {
+    pub fn generate() -> Self {
+        BaseId::generate("M")
+    }
+}
+
+impl fmt::Display for Id {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.0.fmt(f)
+    }
+}
diff --git a/src/message/mod.rs b/src/message/mod.rs
new file mode 100644
index 0000000..d563a88
--- /dev/null
+++ b/src/message/mod.rs
@@ -0,0 +1,3 @@
+mod id;
+
+pub use self::id::Id;