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Subject: [OASIS Issue Tracker] Updated: (ODATA-126) Metadata as an OData service

     [ http://tools.oasis-open.org/issues/browse/ODATA-126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Pizzo updated ODATA-126:

    Environment:     (was: [Proposed])

There have been a lot of requests for this in the past, but we need a full proposal (including CSDL of the metadata document) to understand design details and provide sufficient direction to the editors. This might be good to add to the issues to work on at the November Face to Face.

> Metadata as an OData service
> ----------------------------
>                 Key: ODATA-126
>                 URL: http://tools.oasis-open.org/issues/browse/ODATA-126
>             Project: OASIS Open Data Protocol (OData) TC
>          Issue Type: New Feature
>          Components: OData CSDL v1.0, OData Protocol v1.0, OData URL Conventions v1.0
>    Affects Versions: WD01
>            Reporter: Ralf Handl
>            Assignee: Ralf Handl
>             Fix For: WD01
> Instead of o monolithic XML metadata document the metadata could be made available as an OData service with a fixed schema:
> Entity types
>  - EntitySet
>  - EntityType
>  - Property
>  - ValueAnnotation
>  - ...
> Entity sets
>  - EntitySets
>  - EntityTypes
>  - Properties
>  - VallueAnnotations
>  - ...
> This meta-service could be accessed via a canonical URL, ideally ~/$metadata/ with $format=atom/json or a corresponding Accept header.
> This would allow accessing only parts of the metadata document the client is interested in and simplify parsing for clients: they only need to know how to interpret "normal" OData feed and entity response payloads without needing a separate metadata format.
> It would also conveniently provide a JSON format for metadata.

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