How can I access the original input message before it was decoded so that I can refer to it from filter or output?
The setup is as follows:
- I am reading JSON from rabbitmq; the default codec is json and it breaks the message into fields (which is what I want).
- I am doing some basic transformation such as date matching on the extracted
- On output, I would like to take the original, un-decoded JSON value and insert as one of output fields.
How do I access that original input?