first commit

.gitignore

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+node_modules/
+dist/

Dockerfile

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+FROM node:25-alpine
+
+RUN apk update && \
+    apk add --no-cache chromium && \
+    rm -rf /var/cache/apk/*
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm config set registry https://repo.huaweicloud.com/repository/npm/ && \
+    npm config set fetch-retries 3 && \
+    npm install
+
+COPY . .
+
+ENV CHROME_PATH=/usr/bin/chromium
+ENV NODE_ENV=production
+
+CMD ["npm", "run", "dev"]

README.md

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+https://tsx.hirok.io/watch-mode
+
+docker compose down && docker compose up -d --build  

db.json

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+{
+  "setting": {
+    "count": "46",
+    "time": "2026/5/27 23:37:18"
+  }
+}

docker-compose.yml

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+services:
+  dy-monitor:
+    build: .
+    container_name: dy-monitor
+    restart: always
+    environment:
+      # 每30秒重新运行一次检查，默认每天早上8点
+      # - CRON=*/30 * * * * *
+      # 每30秒重新运行一次检查，默认每天早上8点
+      # - CRON=*/30 * * * * *
+      # - DOUYIN_PAGE=抖音主播主页地址
+      - PAGE_TIMEOUT=30000
+      # Chrome 路径
+      - CHROME_PATH=/usr/bin/chromium
+
+      # 可选：覆盖邮箱、URL
+      # - MAIL_HOST=xxx@qq.com
+      # - MAIL_PORT=xxx@qq.com
+      # - MAIL_SECURE=xxx@qq.com
+      # - MAIL_USER=xxx
+      # - MAIL_PASS=xxx
+
+    # # 持久化数据库文件
+    # volumes:
+    #   - ./db.json:/app/db.json

package.json

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+{
+  "name": "dy-not",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "dev": "tsx watch src/index.ts"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "type": "commonjs",
+  "devDependencies": {
+    "@types/node": "^25.9.1",
+    "@types/node-schedule": "^2.1.8",
+    "@types/nodemailer": "^8.0.0",
+    "lowdb": "^7.0.1",
+    "puppeteer-core": "^25.1.0",
+    "tsx": "^4.22.3",
+    "typescript": "^6.0.3",
+    "node-schedule": "^2.1.1",
+    "nodemailer": "^8.0.9"
+  }
+}

src/db/index.ts

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+import { JSONFilePreset,  } from 'lowdb/node'
+import { Low  } from 'lowdb'
+
+// 定义数据结构：setting 是对象，不是数组
+type Data = {
+  setting: {
+    count: string | number;
+    time: string;
+    [key: string]: any;
+  };
+};
+
+class DbJson {
+    private defaultData: Data = { 
+        setting: {
+            count: 0,
+            time: ''
+        }
+    }
+
+    db!: Low<Data>;
+
+    constructor () {
+        this.init();
+    }
+
+    async init () {
+        this.db = await JSONFilePreset<Data>('db.json', this.defaultData)
+    }
+
+    async set(params: Data['setting']) {
+        this.db.data.setting = params
+        await this.db.write()
+    }
+
+    // 读取当前保存的 setting
+    async get() {
+        return this.db.data.setting;
+    }
+}
+
+export default new DbJson

src/index.ts

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+import puppeteer from 'puppeteer-core';
+import config from "./config";
+import db from "./db/index";
+import mailer from "./utils/mailer";
+import schedule from 'node-schedule';
+
+// 把你的逻辑封装成函数
+async function startTask() {
+    console.log('');
+    console.log('====================================');
+    console.log('⏰ 定时任务开始执行：', new Date().toLocaleString());
+    console.log('====================================');
+    console.log('');
+
+    try {
+        // 1. 启动无头浏览器
+        const browser = await puppeteer.launch(config.launchConfig);
+        const page = await browser.newPage();
+        await page.setExtraHTTPHeaders(config.httpHeaders);
+
+        // 访问页面
+        await page.goto(config.page, {
+            waitUntil: 'networkidle2',
+            timeout: <number>config.pageTimeOut
+        });
+
+        await page.setViewport({ width: 1080, height: 1024 });
+
+        // 抓取数量
+        const number = await page.$eval(
+            '#semiTabpost h2 span:last-child',
+            el => el.textContent.trim()
+        );
+        console.log('1 抓取到主播最新作品数：', number);
+
+        // 获取旧值
+        const { count } = await db.get();
+        console.log('2 数据库里的旧值：', count);
+
+        // 判断是否更新
+        if (String(count) !== String(number)) {
+            console.log('✅ 主播更新作品了');
+            await mailer.send();
+            await db.set({
+                count: number,
+                time: new Date().toLocaleString()
+            });
+            console.log('✅ 已更新到数据库');
+        } else {
+            console.log('❌ 主播没有更新作品');
+        }
+
+        await browser.close();
+        console.log('✅ 本次任务执行完成\n');
+
+    } catch (err) {
+        console.error('❌ 任务执行出错：', err);
+    }
+}
+
+
+console.log('✅ 程序已启动，执行任务，定时规则：', config.cron);
+
+schedule.scheduleJob(config.cron, async () => {
+    await startTask();
+});
+
+// startTask()

src/utils/mailer.ts

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+import nodemailer from 'nodemailer';
+import config from '../config';
+
+
+class Mailer {
+    transporter: any;
+
+    constructor() {
+        this.transporter = nodemailer.createTransport(config.mailer);
+        this.verify();
+    }
+
+
+    async verify() {
+        try {
+            await this.transporter.verify();
+            console.log("✅ 邮件服务已经初始化成功...");
+        } catch (err) {
+            console.error("❌ 邮件服务初始化失败: ", err);
+        }
+    }
+
+    async send() {
+        console.log('准备发送邮件通知！');
+        try {
+            const result = await this.transporter.sendMail({
+                from: '2271608011@qq.com', // sender address
+                to: "2271608011@qq.com", // list of recipients
+                subject: "小🐰碎碎念 - 更新了！", // subject line
+                html: `您关注的博主，更新啦！<a href="${config.page}">抖音主页</a>`
+            });
+
+            console.log('✅ 邮件发送成功:', result);
+        } catch (err) {
+            console.error('❌ 邮件发送失败:', err);
+            throw err;
+        }
+    }
+}
+
+export default new Mailer

tsconfig.json

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+{
+	"compilerOptions": {
+
+		// Treat files as modules even if it doesn't use import/export
+		"moduleDetection": "force",
+
+		// Ignore module structure
+		"module": "Preserve",
+
+		// Allow JSON modules to be imported
+		"resolveJsonModule": true,
+
+		// Allow JS files to be imported from TS and vice versa
+		"allowJs": true,
+
+		// Use correct ESM import behavior
+		"esModuleInterop": true,
+
+		// Disallow features that require cross-file awareness
+		"isolatedModules": true,
+	},
+}