NOT
Not directly supported in an app for SharePoint
Alternatives:
1) Windows Azure Worker Role
2) Console App
3) Farm Solution (on premises only)
BCS supports only OData connections in the App
Model
Alternatives:
1) Create your own OData wrapper outside of the
app for SharePoint
2) Write code instead of using BCS
It is the recommended approach for development for
SP2013 and beyond!
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