Originally, Blockstore was an independent micro-service, accessed via a REST API.
Then, we changed Blockstore so it could be installed as an in-process Django app.
To support both modes, there existed a blockstore_api wrapper library in edx-platform,
with toggles controlling whether the wrapper called out to the micro-service's REST API versus the
Django app's Python API. Now that the micro-service Blockstore implementation is deprecated,
though, this wrapper library and toggles are just unnecessary complexity.
As a first step towards cleanup, we:
* remove several toggles and settings (details below);
* remove the blocokstore_api wrapper methods which called the REST API and
marshalled them back into Python objects; and
* remove all test cases which relied on the Blockstore micro-service (and were skippped in CI).
In the future, we will remove the content libraries indexer,
clean up the remaining bits of blockstore_api, and flatten out all
the Blockstore-related test class hierarchies which are no longer nceessary.
BREAKING CHANGE:
* These Django settings are removed:
* BLOCKSTORE_PUBLIC_URL_ROOT
* BLOCKSTORE_API_URL
* BLOCKSTORE_API_AUTH_TOKEN
* BLOCKSTORE_USE_BLOCKSTORE_APP_API
* The blockstore.use_blockstore_app_api Waffle switch is removed.
* edx-platform will act as it did when the DJango setting BLOCKSTORE_USE_BLOCKSTORE_APP_API
or the Waffle switch blockstore.use_blockstore_app_api were enabled. That is, any running Blockstore
micro-service instance will be ignored, and the Blockstore package which is installed into edx-platform
will be used instead.
Ref: https://github.com/openedx/blockstore/issues/296