How to add timestamp to message data in winston + fluent transport about fluent-logger-node HOT 3 CLOSED

Some winston transports don't support custom formatter and other options.
For example, console transports and file transports support them, but http transports and memory transports don't.

Could you describe what do you want to do? I cannot imagine your situation.
I think timestamp which is added by fluent-logger is enough.

from fluent-logger-node.

Thanks for your response @okkez. My scenario is the following (I am a newbie with fluentd so please let me know if I have other options to do this):

• Setup fluent-logger to output directly to fluentd including a timestamp as part of the body of the collected message itself.
• This message is stored in elasticsearch and it should have the timestamp included as part of the message.

Instead, what is happening is that we are receiving the messages stored in elasticsearch, but we only have the timestamp (from what I can see) of the storage in elasticsearch and not the actual timestamp of the fluent-logger. Perhaps I can do some filtering / formatting in fluentd conf to extract the timestamp and inject it in the message's body?

from fluent-logger-node.

Thank you for describing your case.

You can use filter_record_transformer in such case.
http://docs.fluentd.org/articles/filter_record_transformer

<source>
  @type forward
  @label @TEST
</source>

<label @TEST>
  <filter>
    @type record_transformer
    <record>
       timestamp ${time}
    </record>
  </filter>

  <match **>
    @type elasticsearch
    # ... snip ...
  </match>
</label>

I don't confirm this configuration.
If you want inject timestamp into the message, see following example:

<filter>
  @type record_transformer
  message ${time} ${record["message"]}
</filter>

from fluent-logger-node.