Step 2.9: Create models file with declarations of Chat, Message and M…

…essageType

src/models.ts

@@ -0,0 +1,18 @@
+export enum MessageType {
+  TEXT = <any>'text'
+}
+
+export interface Chat {
+  _id?: string;
+  title?: string;
+  picture?: string;
+  lastMessage?: Message;
+}
+
+export interface Message {
+  _id?: string;
+  chatId?: string;
+  content?: string;
+  createdAt?: Date;
+  type?: MessageType
+}