Extract specific fields to put into database

[wweiyang]

Hi,

I need to extract out certain fields from the requests/responses to put into a database.
For example if I want to have columns for "type", "method", "body" in the database and insert the respective fields from the logged requests/responses. Is that possible?

I was thinking of setting the values for these fields in a java object to be used for inserting the data to the database, but I first need a way to get these individual values from the logs. Or maybe there is another way of doing it?

[whiskeysierra]

You need to write a custom HttpLogWriter. The Precorrelation/Correlation parameters give you access to the original request/response from where you can derive stuff like type, method and body. If you completely ignore the formatted string (produced by a HttpLogFormatter) then you may implement a special one that just returns an empty string so you don't waste time producing a string that you don't need in the end.

[wweiyang]

May I know the difference between HttpLogWriter and HttpLogFormatter? What does each one do? And which one gets called first? Just want to get a clearer picture of how they work.

@whiskeysierra And regarding your previous reply, I've managed to access the individual fields through HttpLogWriter, thanks for the help on that part. 👍

[whiskeysierra]

What does each one do? And which one gets called first?

https://github.com/zalando/logbook#formatting
https://github.com/zalando/logbook#writing