Suggest rest api details within that can fetch the plan data from cloud directly to any legacy

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Need the rest api details within oracle fusion cloud that can fetch the plan data from cloud directly to any legacy system (such as AWS), etc. 

a. Can we use the these rest APIs to fetch the data from the UCM after launching the publish plan?

"Get one publish data job"

b. Can we use these apis to fetch the data one column at a time from a specific table? 

"Get all metadata extracts"

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