Create /api/db endpoints
Create the /api/db endpoints as specified in #1.
You will need to create all of the necessary classes from the bottom up. I suggest creating an IDatabaseService interface, which is implemented by MySQLService and PostgresQLService. In zope, it is possible to register multiple implementations of a single interface, if you register them with different names (see https://zopecomponent.readthedocs.io/en/latest/narr.html#utilities).
You will also need the transaction layer and API layer.
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