Feed type, first approach.

src/types/Feed.ts

@@ -1 +1,18 @@
-// Aquí exportaré las interfaces que vaya a necesitas: las básicas, dtos, enums, etc.
+export enum NewsSource {
+    EL_PAIS = 'El País',
+    EL_MUNDO = 'El Mundo',
+    MANUAL = 'Manual'
+}
+
+export interface IFeed {
+    _id?: string;
+    title: string;
+    description: string;
+    url: string;
+    source: NewsSource;
+    publishedAt: Date;
+    imageUrl?: string;
+    category?: string;
+    createdAt?: Date;
+    updatedAt?: Date;
+}