https://github.com/SAP/spartacus/issues/3649

SAP Commerce Cloud CMS 頁面加載的一些優化點：

• Payload of the CMS page structure - 待加載CMS 頁面結構的負載
• Splitting the CMS page structure in both page and page template CMS
• improve cache-ability of the CMS page structure

CMS page structure payload (#3668)

One of the main performance gains will be around the CMS page structure which is loaded when we navigate the storefront. The current payload is polluted and too heavy weighted for the purpose, and is loaded over and over again during navigation.

目前的Spartacus實現里，后臺OCC API返回的很多數據，在Spartacus里根本不需要。

Currently the page payload is polluted with data which is required for SmartEdit integration. This includes the page.uuid, contentSlot.slotUuid and component.uuid. These fields contain a pretty long hash, and are only required during the SmartEdit integration and not required for the production storefront.

比如下圖這些數據，只是為了和 SmartEdit集成用的。

While there is actually a good reason to reload page data while navigating (in order to support the CMS restrictions which might expose new pages and components during navigation), the possibility that component would actual change on a 2nd page load is fairly low.

盡管每次跳轉時，重新從SAP Commerce Cloud 后臺讀取CMS頁面數據，是為了支持 CMS restriction，及下圖所示的設置：

但是兩次跳轉過程中，CMS page Restricted Page Types 在后臺發生變化的可能性太低太低。

Therefor we should consider a more efficient API that will be used to evaluate if there’s a change. If any, we could do an additional call, or – even better – introduce server push to preload it automatically.

因此有必要設計一個API，用來評估后臺CMS restriction是否發生變化：僅當真的有變化時，才重新加載頁面。

https://github.com/SAP/spartacus/issues/3668

Avoid reloading full page data (see #3667)

Additionally, the current page payload contains both the CMS page structure as well as the associated CMS page template structure. As already pointed out, the payload is heavy, and blocks the experience. In order to optimise, we should avoid loading the full payload during navigation.

更多Jerry的原創文章，盡在：“汪子熙”:

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