Merge pull request #83 from thectogeneral/feat/68-blog-post-listing

Feat/68 blog post listing

src/controllers/BlogController.ts

@@ -0,0 +1,34 @@
+import { Request, Response, NextFunction } from "express";
+import { BlogService } from "../services/blog.services";
+
+const blogService = new BlogService();
+
+const getPaginatedBlogs = async (req: Request, res: Response, next: NextFunction) => {
+    try {
+        const page = parseInt(req.query.page as string) || 1;
+        const pageSize = parseInt(req.query.page_size as string) || 10;
+
+        if (page <= 0 || pageSize <= 0) {
+            return res.status(400).json({ error: "Invalid page or page_size parameter" });
+        }
+
+        const { count, next, previous, results } = await blogService.getPaginatedBlogPosts(page, pageSize);
+
+        const summaries = results.map(blog => ({
+            id: blog.id,
+            title: blog.title,
+            excerpt: blog.content.substring(0, 100), // Example: first 100 characters as excerpt
+            image_url: blog.imageUrl,
+            tags: blog.tags,
+            created_at: blog.createdAt,
+        }));
+
+        res.status(200).json({ count, next, previous, results: summaries });
+    } catch (error) {
+        next(error);
+    }
+};
+
+
+
+export { getPaginatedBlogs };

src/controllers/index.ts

@@ -1,5 +1,6 @@
 // silence is golden
 export * from "./AuthController";
 export * from "./UserController";
+export * from "./BlogController"
 export * from "./HelpController";
 export * from "./NotificationController";

src/index.ts

@@ -6,14 +6,7 @@ import express, { Express, Request, Response } from "express";
 import config from "./config";
 import dotenv from "dotenv";
 import cors from "cors";
-import {
-  userRouter,
-  authRoute,
-  helpRouter,
-  testimonialRoute,
-  notificationRouter,
-  smsRouter,
-} from "./routes";
+import { userRouter, authRoute, testimonialRoute, notificationRouter, smsRouter, blogRoute } from "./routes";
 import { routeNotFound, errorHandler } from "./middleware";
 import { orgRouter } from "./routes/organisation";
 import swaggerUi from "swagger-ui-express";
@@ -47,6 +40,7 @@ server.use("/api/v1/auth", authRoute);
 server.use("/api/v1/help-center", helpRouter);
 server.use("/api/v1/sms", smsRouter);
 server.use("/api/v1", testimonialRoute);
+server.use("/api/v1/blogs", blogRoute);
 server.use("/api/v1/docs", swaggerUi.serve, swaggerUi.setup(swaggerSpec));
 server.use(routeNotFound);
 server.use(errorHandler);

src/middleware/index.ts

@@ -1,2 +1,4 @@
 export * from "./error";
 export * from "./auth";
+export * from "./methodNotAllowed";
+

src/middleware/methodNotAllowed.ts

@@ -0,0 +1,8 @@
+// src/middleware/methodNotAllowed.ts
+import { Request, Response, NextFunction } from 'express';
+
+const methodNotAllowed = (req: Request, res: Response, next: NextFunction) => {
+  res.status(405).json({ error: 'This method is not allowed.' });
+};
+
+export { methodNotAllowed };

src/routes/blog.ts

@@ -0,0 +1,12 @@
+// src/routes/blogRoute.ts
+import { Router } from "express";
+import { getPaginatedBlogs } from "../controllers/BlogController"; 
+import { methodNotAllowed } from "../middleware";
+
+const blogRoute = Router();
+
+blogRoute.post("/");
+blogRoute.get("/", getPaginatedBlogs);
+blogRoute.all("/", methodNotAllowed); 
+
+export { blogRoute };

src/routes/index.ts

@@ -3,5 +3,7 @@ export * from "./auth";
 export * from "./user";
 export * from "./help-center";
 export * from "./testimonial";
+export * from "./notificationsettings"
+export * from "./blog";
 export * from "./sms";
-export * from "./notificationsettings";
+

src/services/blog.services.ts

@@ -0,0 +1,22 @@
+import { Blog } from "../models";
+import { IBlogService } from "../types";
+import  AppDataSource from '../data-source';
+
+export class BlogService implements IBlogService {
+    private blogRepository = AppDataSource.getRepository(Blog);
+
+    async getPaginatedBlogPosts(page: number = 1, pageSize: number = 10): Promise<{ count: number, next: string | null, previous: string | null, results: BlogPost[] }> {
+        const [results, count] = await this.blogRepository.findAndCount({
+            relations: ['author'],
+            skip: (page - 1) * pageSize,
+            take: pageSize,
+            order: { createdAt: "DESC" }
+        });
+
+        const next = page * pageSize < count ? `/api/v1/blogs?page=${page + 1}&page_size=${pageSize}` : null;
+        const previous = page > 1 ? `/api/v1/blogs?page=${page - 1}&page_size=${pageSize}` : null;
+
+        return { count, next, previous, results };
+    }
+
+}

src/services/index.ts

@@ -1,3 +1,4 @@
 export * from "./auth.services";
 export * from "./user.services";
-export * from "./help.services";
+export * from "./blog.services";
+export * from "./help.services";

src/types/index.d.ts

@@ -1,5 +1,16 @@
 import { User } from "../models";
 
+export interface PaginatedBlogResponse {
+  count: number;
+  next: string | null;
+  previous: string | null;
+  results: Blog[];
+}
+
+export interface IBlogService {
+  getPaginatedBlogPosts(page: number, pageSize: number): Promise<PaginatedBlogResponse>;
+}
+
 export interface IUserService {
   getUserById(id: string): Promise<User | null>;
   getAllUsers(): Promise<User[]>;