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https://issues.apache.org/jira/browse/LOG4J2-3298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17471502#comment-17471502
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Volkan Yazici commented on LOG4J2-3298:
---------------------------------------
[~mattrpav], would the following work for you?
{code:java}
ThreadContext.put("id", obj.getId());
ThreadContext.put("name", obj.getName());
logger.info("happy customer");
{code}
Note that you need to expose MDC fields in the template:
{code:json}
{
"message": {
"$resolver": "message",
"stringified": true
},
"mdc": {
"$resolver": "mdc",
"stringified": true
}
}
{code}
> Update JSONTemplateFormat to support not escaping certain payloads
> ------------------------------------------------------------------
>
> Key: LOG4J2-3298
> URL: https://issues.apache.org/jira/browse/LOG4J2-3298
> Project: Log4j 2
> Issue Type: Improvement
> Components: JsonTemplateLayout
> Reporter: Matt Pavlovich
> Assignee: Volkan Yazici
> Priority: Minor
>
> Currently, if a user's object is able to generate well-formed JSON string, it
> will be escaped. It would be great if there was a way to config the
> JsonTemplateLayout to _not escape_ certain payloads. This allows the json to
> be fully formed and contain model object data that can be parsed out later
> without any un-formatting.
> Example log entry:
> {noformat}
> {"@timestamp":"2022-01-07T19:14:01.060Z","log.level":"INFO","message":"{
> \"Order\" { \"id\": \"3977\", \"customerName\": \"Customer-8625\",
> \"createdDate\": \"2022-01-07T09:51:01.056580-06:00\"}
> }","process.thread.name":"main","log.logger":"io.foo.log.ProcessService"}
> {noformat}
> Desired output:
> {noformat}
> {"@timestamp":"2022-01-07T19:14:01.060Z","log.level":"INFO","message":{
> "Order" { "id": "3977", "customerName": "Customer-8625", "createdDate":
> "2022-01-07T09:51:01.056580-06:00"}
> },"process.thread.name":"main","log.logger":"io.foo.log.ProcessService"}
> {noformat}
> Proposed requirements:
> 1. Users would have to pre-escape their JSON string in order to not break
> overall log json format
> Implementation approach options:
> 1. Update JSONTemplate configuration to allow a rawJSON, similar to
> 'stringified'
> 2. Data is written down as a JSON object "message": { }
> 3. User should invoke using an ObjectMessage (or perhaps a
> JSONFormatMessage?): logger.info(new ObjectMessage(objectInstance))
> {noformat}
> "message": {
> "$resolver": "message",
> "rawJSON": true
> },
> {noformat}
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