• The figure below is a syntax diagram of the structure of SharePoint Foundation REST service URIs. You can read more about the SharePoint Foundation REST service here.
    Syntax diagrams are a useful way of illustrating linear data structures. Things like:
    • REST URI composition
    • API signatures
    • JSON, OData, or other XML-based data notation
    You can find out more about syntax diagrams at this Wikipedia entry, see some examples using JSON here, and see some more examples in the OData specifications.
    SharePoint Foundation 2010 REST URI Structure