Using HTTP Vary header to decide on a strategy to process a request

Posted by Jacques René Mesrine on Stack Overflow See other posts from Stack Overflow or by Jacques René Mesrine
Published on 2010-03-30T09:48:39Z Indexed on 2010/03/30 9:53 UTC
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rest

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http

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api-design

I have a specific REST endpoint that creates a topic in a forum; but I want to apply different strategies when processing the request. e.g. If client A makes the call, perform moderation. if client B makes the call, do something else. The easiest would be to add a query param for differentiation:

 POST /resource?from=xyz

Another brilliant idea is to use the Vary HTTP header.

 POST /resource
 Vary: xyz

Any problems with this approach ?

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