When building a VBCS application you will almost always be
connecting to a data source and one question you will almost
certainly ask yourself is
” do I need a middle tier to access the data source, SaaS in
our case has APIs, or can I, should I go directly?”
The answer to the question depends on many factors:
Does the SaaS Service expose a REST API?
Does the REST API meet your needs?
Does the REST API support data security so that if a user
bypassed the webUI no harm would be...