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DesignTime/RunTime Catalogue Database stores ControlLoop definitions, CRUD operations on database supported by REST Endpoints like Get, Delete, Create allowing selection of a particular ControlLoop to be addressed, below sequence diagram will help you understand flow how a client(Clamp) application can initiate Rest call for performing different operations on Database.
CL_Instance_Control Service is Gateway API_Gateway Service is for interacting to different database DesignTime/RunTime and should be responsible for responding success or failure status on different operations.
The deployment of ControlLoops definition from DesignTime to RunTime Catalogue Database can we achived using deploy Rest Endpoint, in this process when a rest request is initiated from a client(Clamp) the CL_Instance_Control the API_Gateway Service take cares of fetching ControlLoops metadata from DesignTime and creates in RunTime Catalogue Database, Deploy API ControlLoop Sequence diagram will help you understand the flow.
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