Learning Scala Web Development (Video 21)

The video tutorial explores caching in the Spray framework, focusing on the Spray Caching module and Spray Routing Directives. It discusses different caching strategies, including in-memory cache implementations like Simple LRU and Expiring LRU. The tutorial demonstrates caching in a book catalog API and highlights the importance of E-tags and conditional requests for efficient data handling. The video concludes by emphasizing the significance of caching in scalable web services and hints at future discussions on integrating external RESTful web services.

Describe how conditional request headers work in conjunction with caching.

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What are the practical benefits of integrating caching into RESTful web services?

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What challenges arise when keeping cache in sync with actual data?

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