package main import ( "context" "gitoa.ru/go-4devs/log" "gitoa.ru/go-4devs/log/field" ) func main() { ctx := context.Background() log.DebugKV(ctx, "debug message") log.ErrKV(ctx, "error message") log.Errf(ctx, "format error message:%v", 42) log.Err(ctx, "error message", 42) service(ctx, log.Log()) logger := log.New(log.WithJSONFormat()).With(log.WithSource(10)) logger.AlertKV(ctx, "alert message new logger", field.String("string", "value")) service(ctx, logger) } func service(ctx context.Context, logger log.Logger) { logger = logger.With(log.WithName("service")) logger.WarnKV(ctx, "warn service message") otherService(ctx, logger) } func otherService(ctx context.Context, logger log.Logger) { logger = logger.With(log.WithName("other_service")) logger.WarnKV(ctx, "warn other service message") }