Update

src/shared/pg.post.service.ts

@@ -13,6 +13,10 @@ export class PgPostService {
         });
     }
 
+    async getById(id: number): Promise<Post | null> {
+        return this.post({id})
+    }
+
     async createPost(data: Prisma.PostCreateInput): Promise<Post> {
         return this.prisma.post.create({
             data,