logger

SDC logger

Usage Example

This package exposes functions to help with logging using the logr.Logger interface, mainly regarding context-based passing of the logger instance.

Any logging implementation which implements logr.Logger can be used, and there are many implementations which provide the logr.Logger interface (zapr, logr, ...).

It also contains a few preset log levels corresponding to levels provided by slog.

package main

import (
	"context"
	"log/slog"

	"github.com/go-logr/logr"
	logf "github.com/sdcio/logger"
)

func main() {
	log := logr.FromSlogHandler(slog.NewJSONHandler(os.Stdout, nil))
	logf.SetDefaultLogger(log)

	ctx := logf.IntoContext(context.Background(), log)

	log.Info("first log message", "key", "value")

    RunContext(ctx)

    log = log.WithValues("additionalkey", "key2")
    ctx = logf.IntoContext(ctx, log)
    RunContext(ctx)
}

func RunContext(ctx context.Context) {
    log := logf.FromContext(ctx)
    log.Info("log from context logger")
}

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License and Code of Conduct

Code is under the Apache License 2.0, documentation is CC BY 4.0.

The SDC project is following the CNCF Code of Conduct. More information and links about the CNCF Code of Conduct are here.