vom-json is a complementary library to vom, which changes the logger syntax to something like lambda-log which outputs its log messages in the JSON format. In some environments like AWS insights, this makes the log data more searchable.
You can use it two ways:
Wrap the body of your program in it using vom-json:with-json-logging
:
(vom-json:with-json-logging
(vom:error "Oh noes!"))
;; => {"_logLevel":"error","_timestamp":"2020-05-11T18:23:58.569136Z","msg":"Oh noes!","_tags":[],"_package":"common-lisp-user"}
Enable the logger globally:
(vom-json:enable-json-logging)
This project is extremely inspired by log4cl-json.