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This project will deprecate a number of features and areas of code. The first is Blockstore’s capability to run as a separate service. The second, and largest task, will be to enable the removal of all of the V1 content libraries code.

In addition, we will be removing the library_source block, an initial attempt to add specific library reference. Instead, we will be offering one library block, the library content block, which will allow for both randomized and specific content.

Design Diagram

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This is a high level diagram of the feature implementation. Note that Library content is consumed in courses by xblocks, which contain a reference to that library content in their metadata. Learning contexts can then use that reference to “pull” in the required content from the library. Someday, courses might also store their metadata and content in a fashion similar to blockstore, as it is more performant. It is more performant because V2 xblocks better differentiate their content from metadata, and therefore can operate more efficiently. In addition, S3 provides an elegant solution for object storage, which opens the door for better static asset management and flexibility in learning context structure.

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