Logger for go

Install

go get github.com/nextmillenniummedia/logger-go

Init

Init main logger:

logger := loggergo.New().
    Params("trace_id", traceId).
    Level(loggergo.LOG_INFO).

Cloning the logger for child processes while preserving settings:

logger = logger.Clone().From("Another service")

Example

Example: in json format

logger.Params("trace_id", trace_id).From("Service name")
logger.Info("You message", "param1": "value1")

Stdout:

{"level": 30, "from": "Service name", "message": "You message", "trace_id": "xxx-xxx-xxx", "param1": "value1"}

Example: for local development in pretty mode

logger.Params("trace_id", trace_id).From("Service name")
logger.Pretty() // Enable pretty mode
logger.Info("You message")

Stdout:

12:31:33.988 [INFO]    [Service name] You message
    trace_id: xxx-xxx-xxx
    param1: value1
    param2: value2

Levels with codes

Level:	verbose	debug	info	warn	error	fatal	silent
Value:	10	20	30	40	50	60	100

Log message with level lower than set will be skipped

logger := loggergo.New().Level(loggergo.LEVEL_ERROR)
logger.Error("Error message")
logger.Info("info message") // Will be skipped