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Subject: [OASIS Issue Tracker] Commented: (ODATA-316) Allow omitting properties with null or default values from responses

    [ http://tools.oasis-open.org/issues/browse/ODATA-316?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33367#action_33367 ] 

Michael Pizzo commented on ODATA-316:

I think there's an important difference between structural and navigation properties. Today even a simple client can materialize an entity without needing to understand/generate any markup. We lose that if we require that simple client to know about metadata and default values.

If we were to do this I would want it something that the client had to opt into, separately from opting into minimal metadata (which, as the name implies, should just be "markup", not data). However, I really think the bits we'd be saving are unlikely to be worth the added complexity of adding another preference or format parameter -- the format parameters for json are already complex enough, and asking for different combinations doesn't scale well as the matrix of options expands.

> Allow omitting properties with null or default values from responses
> --------------------------------------------------------------------
>                 Key: ODATA-316
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-316
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: Improvement
>          Components: OData JSON Format
>    Affects Versions: V4.0_WD01
>         Environment: [Proposed]
>            Reporter: Ralf Handl
>             Fix For: V4.0_WD01
> Properties not present in a request payload are already interpreted as having the default value (if defined in $metadata) or the null value (if nullable and without default value).
> Why not allow the same for responses.

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