[OASIS Issue Tracker] Created: (CAMP-50) spec needs to clarify behavior in the case of duplicate JSON keys

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

spec needs to clarify behavior in the case of duplicate JSON keys
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                 Key: CAMP-50
                 URL: http://tools.oasis-open.org/issues/browse/CAMP-50
             Project: OASIS Cloud Application Management for Platforms (CAMP) TC
          Issue Type: Bug
          Components: Spec
            Reporter: Gilbert Pilz


In section 2.2 of RFC 4627 (http://www.ietf.org/rfc/rfc4627.txt) it states that :

"An object structure is represented as a pair of curly brackets surrounding zero or more name/value pairs (or members).  A name is a string.  A single colon comes after each name, separating the name from the value.  A single comma separates a value from a following name.  The names within an object SHOULD be unique."

The SHOULD in the last sentence means that "if implementations think they have a valid reason, they can have duplicate names in an object". If you search the net you can find a number of different strategies for dealing with duplicate names/keys. To improve interoperability, CAMP needs to clarify its position with respect to duplicate keys.

High-level proposal: CAMP should further constrain RFC 4627 by saying that clients and the servers MUST NOT send JSON that contains duplicate keys. The clients or servers response to a message containing multiple keys should be left undefined - i.e. CAMP should not require servers to send an error response if/when they detect multiple keys.

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