const Router = require("koa-router"); const thepaperRouter = new Router(); const axios = require("axios"); const { get, set, del } = require("../utils/cacheData"); // 缓存键名 const cacheKey = "thepaperData"; // 调用时间 let updateTime = new Date().toISOString(); // 调用路径 const url = "https://cache.thepaper.cn/contentapi/wwwIndex/rightSidebar"; // 数据处理 const getData = (data) => { if (!data) return []; return data.map((v) => { return { id: v.contId, title: v.name, pic: v.pic, hot: v.praiseTimes, time: v.pubTime, url: `https://www.thepaper.cn/newsDetail_forward_${v.contId}`, mobileUrl: `https://m.thepaper.cn/newsDetail_forward_${v.contId}`, }; }); }; // 澎湃热榜 thepaperRouter.get("/thepaper", async (ctx) => { console.log("获取澎湃热榜"); try { // 从缓存中获取数据 let data = await get(cacheKey); const from = data ? "cache" : "server"; if (!data) { // 如果缓存中不存在数据 console.log("从服务端重新获取澎湃热榜"); // 从服务器拉取数据 const response = await axios.get(url); data = getData(response.data.data.hotNews); updateTime = new Date().toISOString(); // 将数据写入缓存 await set(cacheKey, data); } ctx.body = { code: 200, message: "获取成功", title: "澎湃新闻", subtitle: "热榜", from, total: data.length, updateTime, data, }; } catch (error) { console.error(error); ctx.body = { code: 500, message: "获取失败", }; } }); // 澎湃热榜 - 获取最新数据 thepaperRouter.get("/thepaper/new", async (ctx) => { console.log("获取澎湃热榜 - 最新数据"); try { // 从服务器拉取最新数据 const response = await axios.get(url); const newData = getData(response.data.data.hotNews); updateTime = new Date().toISOString(); console.log("从服务端重新获取澎湃热榜"); // 返回最新数据 ctx.body = { code: 200, message: "获取成功", title: "澎湃新闻", subtitle: "热榜", total: newData.length, updateTime, data: newData, }; // 删除旧数据 await del(cacheKey); // 将最新数据写入缓存 await set(cacheKey, newData); } catch (error) { // 如果拉取最新数据失败,尝试从缓存中获取数据 console.error(error); const cachedData = await get(cacheKey); if (cachedData) { ctx.body = { code: 200, message: "获取成功", title: "澎湃新闻", subtitle: "热榜", total: cachedData.length, updateTime, data: cachedData, }; } else { // 如果缓存中也没有数据,则返回错误信息 ctx.body = { code: 500, message: "获取失败", }; } } }); module.exports = thepaperRouter;