add content

src/main.ts

@@ -1,8 +1,9 @@
 import { NestFactory } from '@nestjs/core';
 
-import { AppModule } from './app.module';
 import { FastifyAdapter, NestFastifyApplication } from '@nestjs/platform-fastify';
 
+import { AppModule } from './app.module';
+
 async function bootstrap() {
     const app = await NestFactory.create<NestFastifyApplication>(AppModule, new FastifyAdapter(), {
         cors: true,

src/modules/content/controllers/post.controller.ts

@@ -1,8 +1,19 @@
-import { Controller, Get } from '@nestjs/common';
+import {
+    Body,
+    Controller,
+    Delete,
+    Get,
+    NotFoundException,
+    Param,
+    Patch,
+    Post,
+} from '@nestjs/common';
+
+import { isNil } from '@nestjs/common/utils/shared.utils';
 
 import { PostEntity } from '../types';
 
-const posts: PostEntity[] = [
+let posts: PostEntity[] = [
     { title: '第一篇文章标题', body: '第一篇文章内容' },
     { title: '第二篇文章标题', body: '第二篇文章内容' },
     { title: '第三篇文章标题', body: '第三篇文章内容' },
@@ -17,4 +28,45 @@ export class PostController {
     async index() {
         return posts;
     }
+
+    @Get(':id')
+    async show(@Param('id') id: number) {
+        const post = posts.find((item) => item.id === Number(id));
+        if (isNil(post)) {
+            throw new NotFoundException(`the post with id ${id} not exits!`);
+        }
+        return post;
+    }
+
+    @Post()
+    async store(@Body() data: PostEntity) {
+        const newPost: PostEntity = {
+            id: Math.max(...posts.map(({ id }) => id + 1)),
+            ...data,
+        };
+        posts.push(newPost);
+        return newPost;
+    }
+
+    @Patch()
+    async update(@Body() data: PostEntity) {
+        let toUpdate = posts.find((item) => item.id === Number(data.id));
+        if (isNil(toUpdate)) {
+            throw new NotFoundException(`the post with id ${data.id} not exits!`);
+        }
+
+        toUpdate = { ...toUpdate, ...data };
+        posts = posts.map((item) => (item.id === Number(data.id) ? toUpdate : item));
+        return toUpdate;
+    }
+
+    @Delete(':id')
+    async delete(@Param('id') id: number) {
+        const toDelete = posts.find((item) => item.id === Number(id));
+        if (isNil(toDelete)) {
+            throw new NotFoundException(`the post with id ${id} not exits!`);
+        }
+        posts = posts.filter((item) => item.id !== Number(id));
+        return toDelete;
+    }
 }