DailyHotApi/routes/baidu.js

136 lines
3.3 KiB
JavaScript

const Router = require("koa-router");
const baiduRouter = new Router();
const axios = require("axios");
const { get, set, del } = require("../utils/cacheData");
// 接口信息
const routerInfo = { name: "baidu", title: "百度", subtitle: "热搜榜" };
// 缓存键名
const cacheKey = "baiduData";
// 调用时间
let updateTime = new Date().toISOString();
// 调用路径
const url = "https://top.baidu.com/board?tab=realtime";
// 数据处理
const getData = (data) => {
if (!data) return [];
const dataList = [];
try {
const pattern = /<!--s-data:(.*?)-->/s;
const matchResult = data.match(pattern);
const jsonObject = JSON.parse(matchResult[1]).cards[0].content;
jsonObject.forEach((v) => {
dataList.push({
title: v.query,
desc: v.desc,
pic: v.img,
hot: Number(v.hotScore),
url: `https://www.baidu.com/s?wd=${encodeURIComponent(v.query)}`,
mobileUrl: v.url,
});
});
return dataList;
} catch (error) {
console.error("数据处理出错" + error);
return false;
}
};
// 百度热搜
baiduRouter.get("/baidu", async (ctx) => {
console.log("获取百度热搜");
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("从服务端重新获取百度热搜");
// 从服务器拉取数据
const response = await axios.get(url);
data = getData(response.data);
updateTime = new Date().toISOString();
if (!data) {
ctx.body = {
code: 500,
...routerInfo,
message: "获取失败",
};
return false;
}
// 将数据写入缓存
await set(cacheKey, data);
}
ctx.body = {
code: 200,
message: "获取成功",
...routerInfo,
from,
total: data.length,
updateTime,
data,
};
} catch (error) {
console.error(error);
ctx.body = {
code: 500,
message: "获取失败",
};
}
});
// 百度热搜 - 获取最新数据
baiduRouter.get("/baidu/new", async (ctx) => {
console.log("获取百度热搜 - 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);
updateTime = new Date().toISOString();
console.log("从服务端重新获取百度热搜");
// 返回最新数据
ctx.body = {
code: 200,
message: "获取成功",
...routerInfo,
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",
...routerInfo,
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,
...routerInfo,
message: "获取失败",
};
}
}
});
baiduRouter.info = routerInfo;
module.exports = baiduRouter;