[ 
https://issues.apache.org/jira/browse/AVRO-3405?focusedWorklogId=728443&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-728443
 ]

ASF GitHub Bot logged work on AVRO-3405:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 16/Feb/22 19:13
            Start Date: 16/Feb/22 19:13
    Worklog Time Spent: 10m 
      Work Description: martin-g opened a new pull request #1551:
URL: https://github.com/apache/avro/pull/1551


   
   ### Jira
   
   - [X] My PR addresses the following [Avro 
Jira](https://issues.apache.org/jira/browse/AVRO/) issues and references them 
in the PR title. For example, "AVRO-1234: My Avro PR"
     - https://issues.apache.org/jira/browse/AVRO-3405
   
   ### Tests
   
   - [X] My PR adds new unit tests
   
   ### Commits
   
   - [X] My commits all reference Jira issues in their subject lines. In 
addition, my commits follow the guidelines from "[How to write a good git 
commit message](https://chris.beams.io/posts/git-commit/)":
     1. Subject is separated from body by a blank line
     1. Subject is limited to 50 characters (not including Jira issue reference)
     1. Subject does not end with a period
     1. Subject uses the imperative mood ("add", not "adding")
     1. Body wraps at 72 characters
     1. Body explains "what" and "why", not "how"
   
   ### Documentation
   
   - [X] In case of new functionality, my PR adds documentation that describes 
how to use it.
     - All the public functions and the classes in the PR contain Rustdoc that 
explain what it does
   


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Issue Time Tracking
-------------------

            Worklog Id:     (was: 728443)
    Remaining Estimate: 0h
            Time Spent: 10m

> add API for user-provided metadata when writing to Object Container File
> ------------------------------------------------------------------------
>
>                 Key: AVRO-3405
>                 URL: https://issues.apache.org/jira/browse/AVRO-3405
>             Project: Apache Avro
>          Issue Type: Improvement
>          Components: rust
>    Affects Versions: 1.11.0
>         Environment: Rust Edition 2021
> avro-rs = "0.13.0"
>  
>            Reporter: Kevin
>            Priority: Major
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Other libraries provide an API for user-specified metadata to be written to 
> the header of an Avro Object Container File. In our case we have always done 
> this from Python but are now implementing new projects in Rust. This is 
> important to our use of Avro as the metadata provides critical context for 
> data handling from container files.
> As an example in Rust, see the {{avrow}} crate which [provides this 
> facility|https://docs.rs/avrow/0.2.1/avrow/struct.WriterBuilder.html] as a 
> method on its {{{}WriterBuilder{}}}. Something similar for {{avro-rs}} would 
> suit our needs.
> For a variety of reasons we are unable to use {{avrow}} in our Rust 
> development, so we need this Improvement in Apache {{{}avro-rs{}}}.
> Thank you for your consideration!



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