DailyHotApi/routes/weibo.js
2023-03-14 16:04:10 +08:00

129 lines
3.2 KiB
JavaScript

const Router = require("koa-router");
const weiboRouter = new Router();
const axios = require("axios");
// const cheerio = require("cheerio");
const { get, set, del } = require("../utils/cacheData");
// 缓存键名
const cacheKey = "weiboData";
// 调用时间
let updateTime = new Date().toISOString();
// 调用路径
const url = "https://weibo.com/ajax/side/hotSearch";
// 数据处理
const getData = (data) => {
if (!data) return [];
// return data;
return data.map((v) => {
const key = v.word_scheme ? v.word_scheme : `#${v.word}`;
return {
title: v.word,
desc: key,
hot: v.raw_hot,
url: `https://s.weibo.com/weibo?q=${encodeURIComponent(
key
)}&t=31&band_rank=1&Refer=top`,
mobileUrl: `https://s.weibo.com/weibo?q=${encodeURIComponent(
key
)}&t=31&band_rank=1&Refer=top`,
};
});
};
// 微博热搜
weiboRouter.get("/weibo", async (ctx) => {
console.log("获取微博热搜");
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("从服务端重新获取微博热搜");
// 从服务器拉取数据
const response = await axios.get(url);
data = getData(response.data.data.realtime);
updateTime = new Date().toISOString();
if (!data) {
ctx.body = {
code: 500,
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",
title: "微博",
subtitle: "热搜榜",
from,
total: data.length,
updateTime,
data,
};
} catch (error) {
console.error(error);
ctx.body = {
code: 500,
message: "获取失败",
};
}
});
// 微博热搜 - 获取最新数据
weiboRouter.get("/weibo/new", async (ctx) => {
console.log("获取微博热搜 - 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.data.realtime);
updateTime = new Date().toISOString();
console.log("从服务端重新获取微博热搜");
// 返回最新数据
ctx.body = {
code: 200,
message: "获取成功",
title: "微博",
subtitle: "热搜榜",
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: "微博",
subtitle: "热搜榜",
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 = weiboRouter;