Java: How to log raw JSON as JSON and avoid escaping during logging with logback / slf4j

Question

I\'m using SLF4J with Logback in a JAX-RS application... I want to log to JSON in such a way that my message is not encoded again but printed raw into the logfile:

At t

Answer 1

If you have a Json formatted messages, the upper solutions work, but are not so nice, since you don´t want to call a logstash specific code, each time you use your logger in the code.

Just adding a

net.logstash.logback.encoder.LogstashEncoder

is not enough, since the message itsself stays escaped. To solve this, try the following in your logback.xml:

     
        
        
        
        
            
                {
                "jsonMessage": "#asJson{%message}"
                }
            
        
    

The #asJson pattern will unescape your message.