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Logger/slog operators​

This page lists all operators available in the observability/slog sub-package of ro.

Install​

First, import the sub-package in your project:

go get -u github.com/samber/ro/plugins/observability/slog

  • Log​

    logger-slogplugin
    🧩 Source📚 GoDoc

    Logs with structured logging.

    import (
        "log/slog"
        "os"

        "github.com/samber/ro"
        roslog "github.com/samber/ro/plugins/observability/slog"
    )

    logger := slog.New(slog.NewTextHandler(os.Stdout, nil))

    obs := ro.Pipe[string, string](
        ro.Just("operation 1", "operation 2"),
        roslog.Log[string](logger, slog.LevelInfo),
    )

    sub := obs.Subscribe(ro.PrintObserver[string]())
    defer sub.Unsubscribe()

    // Logs: time=... level=INFO msg="operation 1"
    // Logs: time=... level=INFO msg="operation 2"
    // Next: operation 1
    // Next: operation 2
    // Completed
    Similar:
    logwithnotification
    Prototype:
    func Log[T any](logger slog.Logger, level slog.Level)