{ "ntest_log" : { "title" : "Test JSON Log", "json" : true, "file-pattern" : "logfile_(nested|invalid)_json\\.json", "description" : "Test config", "line-format" : [ { "field" : "ts" }, " ", { "field" : "/@fields/lvl" }, " ", { "field" : "@fields/msg" } ], "level-field" : "/@fields/lvl", "timestamp-field": "ts", "body-field" : "@fields/msg", "value" : { "@fields/user" : { "kind" : "string", "identifier" : true }, "@fields/trace#" : { "kind" : "string" } } } }