.--.--. ,--,
/ / '. ,--.'|
| : /`. / | | : ,---. __ ,-.
; | |--` : : ' ' ,'\ ,----._,. ,----._,. ,' ,'/ /|
| : ;_ | ' | / / | / / ' / / / ' / ,---. ' | |' |
\ \ `. ' | | . ; ,. :| : || : | / \ | | ,'
`----. \| | : ' | |: :| | .\ .| | .\ . / / |' : /
__ \ \ |' : |__' | .; :. ; '; |. ; '; |. ' / || | '
/ /`--' /| | '.'| : |' . . |' . . |' ; /|; : |
'--'. / ; : ;\ \ / `---`-'| | `---`-'| |' | / || , ;
`--'---' | , / `----' .'__/\_: | .'__/\_: || : | ---'
---`-' | : : | : : \ \ /
\ \ / \ \ / `----'
`--`-' `--`-'
The logger library using the experimental Golang slog package
- The package was designed to be a simple interface over the slog package extracing out some if the discoverability features and crafting a simple, easy logger.
- creating a new logger with
NewLoggerfunction. The input is an io.Writer, so stdout or a file work (any any io.Writer implementation) - All variadic values passed to the
LogEvent/LogErrorfunctions will be treated as key value pairs, any additional values, that are not mapped to their preceeding values, are added as "misc" fields to the JSON return.
- create a logger with
slogger.NewLogger(os.Stdout) - or log to a file:
f, _ := os.OpenFile(testFile, os.O_RDWR|os.O_TRUNC, os.ModeAppend)
log := slogger.NewLogger(f)
stdoutLogger.LogEvent("info", "Send data to file")
- slogger will accept any number of arbitrary elements and create a json structure from the arguments to the LogEvent functions.
- i.e.
stdoutLogger.LogEvent("info", "Something", "one", "two", "Another", false, "four", true)
output:
stdoutLogger.LogEvent("info", "Something four", "one", "two", "Another", false, "four", true)
- You can also pass a map to the LogEvent functions as unput:
stdoutLogger.LogEvent("info", "Something four", map[string]any{"one": false})
output:
{"time":"2022-12-27T19:19:22.711393515-08:00","level":"INFO","msg":"Something four","one":false}
- You can even pass a combination of map strings:
stdoutLogger.LogEvent("warn", "aaaa", "key", "value", "AnotherKey", false, "four", 123123, map[string]any{"testOne": 42069, "testTwo": false})
output:
stdoutLogger.LogEvent("warn", "aaaa", "key", "value", "AnotherKey", false, "four", 123123, map[string]any{"testOne": 42069, "testTwo": false})
- Example of Misc fields:
{"time":"2022-12-27T18:56:27.543409183-08:00","level":"INFO","msg":"Something four","one":"two","Another":false,"four":true,"miscFields":"bob"}
- Example test output:
{"time":"2022-12-27T18:56:27.543409183-08:00","level":"INFO","msg":"Something four","one":"two","Another":false,"four":true,"miscFields":"bob"}
{"time":"2022-12-27T18:56:27.543564927-08:00","level":"INFO","msg":"Something four","one":"two","Another":false,"four":true}
{"time":"2022-12-27T18:56:27.543572397-08:00","level":"INFO","msg":"Something four","one":false,"Another":false,"four":true}
{"time":"2022-12-27T18:56:27.543577644-08:00","level":"INFO","msg":"A thing","key":"value","AnotherKey":false,"four":123123,"more":"","MORETEST":123123,"TestAgain":false,"miscFields":123123}
{"time":"2022-12-27T18:56:27.543583676-08:00","level":"WARN","msg":"aaaa","AnotherKey":false,"four":123123,"testOne":42069,"testTwo":false,"key":"value"}
{"time":"2022-12-27T18:56:27.543587977-08:00","level":"ERROR","msg":"error","err":"something died"}
{"time":"2022-12-27T18:56:27.54359305-08:00","level":"ERROR","msg":"error","1":2,"3":"masdasd","err":"something died"}
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