Fix guid not being unique in appstore/price (#600)

docs/README.md

@@ -164,7 +164,7 @@ RSSHub 同时支持 RSS 2.0、Atom 和 [JSON Feed](https://jsonfeed.org/) 输出
 
 参数:
 
--   id, fir app id, 必选, 如 fir 生成的链接地址为 https://fir.im/xcz, 则 id 为 xcz
+-   id, fir app id, 必选, 如 fir 生成的链接地址为 https://fir.im/xcz, 则 id 为 `xcz`
 
 ### App Store/Mac App Store 应用更新 <Author uid="cielpy"/>
 
@@ -174,9 +174,9 @@ RSSHub 同时支持 RSS 2.0、Atom 和 [JSON Feed](https://jsonfeed.org/) 输出
 
 参数:
 
--   country, App Store 国家, 必选, 如 QQ 的链接为 https://itunes.apple.com/cn/app/qq/id444934666?mt=8, 则 country 为 cn
+-   country, App Store 国家, 必选, 如 QQ 的链接为 https://itunes.apple.com/cn/app/qq/id444934666?mt=8, 则 country 为 `cn`
 
--   id, App Store app id, 必选, 如 QQ 的链接为 https://itunes.apple.com/cn/app/qq/id444934666?mt=8, 则 id 为 id444934666
+-   id, App Store app id, 必选, 如 QQ 的链接为 https://itunes.apple.com/cn/app/qq/id444934666?mt=8, 则 id 为 `id444934666`
 
 ### App Store/Mac App Store 价格更新（限免） <Author uid="HenryQW"/>
 
@@ -186,11 +186,11 @@ RSSHub 同时支持 RSS 2.0、Atom 和 [JSON Feed](https://jsonfeed.org/) 输出
 
 参数:
 
--   country, App Store 国家, 必选, 如 Squash 的链接为 https://itunes.apple.com/cn/app/id1152443474, 则 country 为 cn
+-   country, App Store 国家, 必选, 如 Squash 的链接为 https://itunes.apple.com/cn/app/id1152443474, 则 country 为 `cn`
 
 -   type, App 类型, 必选, `iOS` 或 `mac`
 
--   id, App Store app id, 必选, 如 Squash 的链接为 https://itunes.apple.com/cn/app/id1152443474, 则 id 为 id115244347
+-   id, App Store app id, 必选, 如 Squash 的链接为 https://itunes.apple.com/cn/app/id1152443474, 则 id 为 `id115244347`
 
 ### App Store/Mac App Store 内购价格更新（限免） <Author uid="HenryQW"/>
 

docs/en/README.md

@@ -150,7 +150,7 @@ id, App Store app id, obtain from the app URL `https://itunes.apple.com/us/app/r
 
 ### App Store/Mac App Store Price Drop Alert <Author uid="HenryQW"/>
 
-eg: [https://rsshub.app/appstore/price/us/mac/id1152443474](https://rsshub.app/appstore/price/cn/mac/id1152443474)
+Eg: [https://rsshub.app/appstore/price/us/mac/id1152443474](https://rsshub.app/appstore/price/cn/mac/id1152443474)
 
 Route: `/appstore/price/:country/:type/:id`
 

routes/appstore/in-app-purchase.js

@@ -19,14 +19,13 @@ module.exports = async (ctx) => {
     const item = list
         .map((i, e) => ({
             link,
-            guid:
-                `${titleTemp} ${$(e)
-                    .find('h3.we-lockup__title')
-                    .text()
-                    .trim()} is now ${$(e)
-                    .find('h5')
-                    .text()
-                    .trim()}` + Date.now(),
+            guid: `${titleTemp} ${$(e)
+                .find('h3.we-lockup__title')
+                .text()
+                .trim()} ${$(e)
+                .find('h5')
+                .text()
+                .trim()}`,
             title: `${titleTemp} ${$(e)
                 .find('h3.we-lockup__title')
                 .text()

routes/appstore/price.js

@@ -32,7 +32,7 @@ module.exports = async (ctx) => {
             title: `${result.title} is now ${currency(result.currency)}${result.price} `,
             description: `<a href="${link}" target="_blank">Go to App Store</a>`,
             link,
-            guid: country + id,
+            guid: id + Date.now(),
         };
         item.push(single);
     }