Feat: Install Redis & Test API

安装 Redis，测试编写必应和状态 API（昨晚应该提交的

src/api/bing.ts

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+import { Api, Get, Query, useContext } from '@midwayjs/hooks';
+import fetch from 'isomorphic-unfetch';
+
+import { client } from '../utils/redis';
+
+export default Api(
+  Get(),
+  Query<{ info: undefined }>(),
+  async (ddd) => {
+    const ctx = useContext();
+
+    // 增加使用数量
+    await client.incr("api-next:stat:bing");
+
+    const cache = await client.lRange("api-next:bing", 0, 2);
+
+    let image;
+
+    if (cache.length) {
+      image = {
+        url: cache[0],
+        copyright: cache[1],
+      };
+    }
+    else {
+      const response = await fetch("https://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1", {
+        headers: {
+          "cache-control": "max-age=0",
+          "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36"
+        }
+      });
+      const json = await response.json();
+
+      image = {
+        url: `https://cn.bing.com${json.images[0].url}`,
+        copyright: json.images[0].copyright,
+      };
+
+      await client.rPush("api-next:bing", [image.url, image.copyright]);
+      await client.expire("api-next:bing", 21600);
+    }
+
+    // 获取失败
+    if (!image) {
+      return {
+        code: 0,
+        msg: "Failed"
+      }
+    }
+
+    // 没有 info，跳转图片地址
+    if (!("info" in ctx.query)) {
+      ctx.status = 302;
+      ctx.set('location', image.url);
+    }
+
+    return {
+      code: 1,
+      data: image,
+      cached: cache.length ? true : false
+    };
+  }
+);

src/api/stat.ts

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+import { Api, Get } from '@midwayjs/hooks';
+
+import { client } from '../utils/redis';
+
+export default Api(Get(), async (repo: string) => {
+  const neteaseStat = await client.get("api-next:stat:netease");
+  const bingStat = await client.get("api-next:stat:bing");
+
+  return {
+    code: 1,
+    data: {
+      wallpaper: -1,
+      netease: Number(neteaseStat),
+      music: -1,
+      avatar: -1,
+      bili: -1,
+      bing: Number(bingStat),
+    }
+  };
+});

src/utils/redis.ts

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+import { createClient, RedisClientType } from 'redis';
+
+export let client: RedisClientType;
+
+(async () => {
+  client = createClient({
+    url: 'redis://127.0.0.1:6379'
+  });
+
+  client.on('error', (err) => console.log('Redis Client Error', err));
+
+  await client.connect();
+})();