[rabbitmq-discuss] rabbitmq shovel Plug-in problem

[何大红]

Like rabbits friends Hello everybody!
 I came to China, my English is very poor, do not mind :)


I would like to ask a question about the use of plug-shovel,
This plug-in has the following configuration fragment content:
-----------------------------------------------
......
{publish_properties, [
       {headers, [ {<< "key1" >>, long, 60000}
                       ,{<< "key2" >>,?, << "there is string content" >>}]
       }
]}
......


I hope that when sending a message shovel plugin to attach some header information of each message, as key1 and key2, but key2 is a string, the above "?" At what should I write? I tried to write "string", but wrong. I searched the official documents, but could not find how to write, I do not know erlang Language: (


I think this should be a shovel plugin configuration file syntax problem, you can tell that I should！


Thank you very much！
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