Lab4 - Filter plugins
In lab4 , we can use record_transformer to transform the values in the kv json input.
Is it also possible to transform the key of the json input , i.e adding a prefix to the key.
For example
input : {"lfs242":"hello","status":"filtered"}
transform to : {"lfs242":"hello","new.status":"filtered"}
Here i'm trying to change the key by adding a prefix to one of the json key (status => new.status)
Comments
-
Hey Nevosial,
It is possible. On a high level, you will need to:
- Take the value of
status
in the incoming record and insert it into a key namednew.status
- Remove the original
status
key from the record withremove_key
If you look later in the same lab, you will explore how to take values from existing keys in the record and associate them with brand new keys.
I will have more specific answers in a later post. Hope this helps for now!
1 - Take the value of
-
Hi Christian,
Thank you for the quick response !
i did find out more examples in the lab 4 with record_transformer; however i found that i can use the json parser plugin inject_key_prefix (https://docs.fluentd.org/filter/parser#inject_key_prefix) to do this.0 -
i think we can close this thread.
0
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