slog使用with定义namespace

使用 with 来定义子Logger,以建立多个Namespace，生成更清晰的日志

func main() {
    handler := slog.NewJSONHandler(os.Stdout, nil)
    buildInfo, _ := debug.ReadBuildInfo()

    logger := slog.New(handler)

    child := logger.With(
        slog.Group("child",
            slog.String("app", "tools"),
        ),
    )
     child1 := logger.With(
        slog.Group("db",
            slog.String("app", "mysql"),
        ),
    )

    . . .
}

显示效果：

{"time":"2024-04-13T14:16:24.4383262+08:00","level":"INFO","msg":"test111","child":{"app":"tools"})
{"time":"2024-04-13T14:16:24.4383262+08:00","1evel":"INFO","msg":"test2222","db":{"app":"mysql"}}

参考文档：
https://czyt.tech/post/logging-in-go-using-slog/