DailyHotApi/routes/toutiao.js

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const Router = require("koa-router");
const toutiaoRouter = new Router();
const axios = require("axios");
const { get, set, del } = require("../utils/cacheData");
// 缓存键名
const cacheKey = "toutiaoData";
// 调用时间
let updateTime = new Date().toISOString();
// 调用路径
const url = "https://www.toutiao.com/hot-event/hot-board/?origin=toutiao_pc";
// 数据处理
const getData = (data) => {
if (!data) return [];
return data.map((v) => {
return {
id: v.ClusterId,
title: v.Title,
pic: v.Image.url,
hot: v.HotValue,
url: `https://www.toutiao.com/trending/${v.ClusterIdStr}/`,
mobileUrl: `https://api.toutiaoapi.com/feoffline/amos_land/new/html/main/index.html?topic_id=${v.ClusterIdStr}`,
};
});
};
// 头条热榜
toutiaoRouter.get("/toutiao", async (ctx) => {
console.log("获取头条热榜");
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("从服务端重新获取头条热榜");
// 从服务器拉取数据
const response = await axios.get(url);
data = getData(response.data.data);
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: "今日头条",
subtitle: "热榜",
from,
total: data.length,
updateTime,
data,
};
} catch (error) {
console.error(error);
ctx.body = {
code: 500,
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title: "今日头条",
subtitle: "热榜",
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message: "获取失败",
};
}
});
// 头条热榜 - 获取最新数据
toutiaoRouter.get("/toutiao/new", async (ctx) => {
console.log("获取头条热榜 - 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);
updateTime = new Date().toISOString();
console.log("从服务端重新获取头条热榜");
// 返回最新数据
ctx.body = {
code: 200,
message: "获取成功",
title: "今日头条",
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: "今日头条",
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,
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title: "今日头条",
subtitle: "热榜",
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message: "获取失败",
};
}
}
});
module.exports = toutiaoRouter;