Cachability of single page applications

A caching system for improving cachability of an application programming interface (API) request result of a content delivery system adapted for supplying content to a client system of a single page application (SPA), the caching system comprising:

• one or more computer readable storage media storing program instructions and one or more processors which, in response to executing the program instructions, are configured to:
• maintain, at a data center adapted for providing latest versions of content items to the SPA for dynamically rewriting a subset of a webpage, a unique seed value per group of content items of a specific type, wherein the unique seed value identifies the group of content items managed at the data center as latest versions and includes a data center identification for the data center;
• update, at the data center, the seed value for the group of content items, upon determining that one of the content items of the group is updated, wherein the seed value is updated with a new unique value that identifies the group of content items managed at the data center as latest versions, and the new unique value is combined with the data center identification for the data center to form an updated seed value for the group of content items;
• cache at least one of the content items of the group of content items together with the updated seed value in the caching system;
• receive, by the caching system, an API request from the SPA requesting as an API request result a content item of the group, wherein a parameter of the API request is a selected seed value.

A computer program product for improving cachability of an API request result of a content delivery system adapted for supplying content to a client system of a single page application (SPA), said computer program product comprising a non-transitory computer readable storage medium having program instructions embodied therewith, said program instructions being executable by one or more computing systems or controllers to cause said one or more computing systems to:

• maintain, at a data center for providing latest version of content items to the SPA for dynamically rewriting a subset of a webpage, a unique seed value per group of content items of a specific type, wherein the unique seed value identifies the group of content items managed at the data center as latest versions and includes a data center identification for the data center;
• update, at the data center, the seed value for the group of content items upon determining that one of the content items of the group of content items is updated, wherein the seed value is updated with a new unique value that identifies the group of content items managed at the data center as latest versions, and the new unique value is combined with the data center identification for the data center to form an updated seed value for the group of content items;
• cache at least one of the content items of the group of content items together with the updated seed value in a caching system;
• and
• receive, by the caching system, an API request from the SPA requesting as an API request result a content item of the group of content items, wherein a parameter of the API request is a selected seed value.