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https://issues.apache.org/jira/browse/BEAM-2451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17145429#comment-17145429
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Beam JIRA Bot commented on BEAM-2451:
-------------------------------------

This issue was marked "stale-P2" and has not received a public comment in 14 
days. It is now automatically moved to P3. If you are still affected by it, you 
can comment and move it back to P2.

> writeProtos() should allow a user to specify message attributes
> ---------------------------------------------------------------
>
>                 Key: BEAM-2451
>                 URL: https://issues.apache.org/jira/browse/BEAM-2451
>             Project: Beam
>          Issue Type: Improvement
>          Components: sdk-java-core
>    Affects Versions: 2.0.0
>            Reporter: Keith Berkoben
>            Priority: P3
>
> when using PubsubIO.writeProtos(protoMessage), the PubsubMessage is created 
> in the background and there is no way to specify the attributes of the 
> message.  This makes the method useless if a user wants to then use the 
> withTimestampAttribute() or withIdAttribute() of the writer with anything 
> other than the default timestamp or ID (a common use case).  
> As a workaround the user can manually create the PubsubMessage, but this 
> basically requires duplication of the writeProtos() logic, which is brittle 
> in the case that the encoding logic changes.  



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