diff --git a/client/api/client_data/Message.ts b/client/api/client_data/Message.ts
new file mode 100644
index 0000000..464703d
--- /dev/null
+++ b/client/api/client_data/Message.ts
@@ -0,0 +1,5 @@
+export default class Message {
+    declare id: number
+    declare text: string
+    declare user_id: string
+}
diff --git a/server/data/Message.ts b/server/data/Message.ts
new file mode 100644
index 0000000..38b0a2a
--- /dev/null
+++ b/server/data/Message.ts
@@ -0,0 +1,7 @@
+export default class Message {
+    declare id: number
+    declare text: string
+    declare user_id: string
+
+    [key: string]: unknown
+}