Package log v2

This is a total rewrite of the original package. Its only reason for existence is some features that are not available in current (at the time of writing) implementation of slog package.

Using the package

Create JSON, Text, or any other handler as usual, then wrap it using log.Wrap:

import "github.com/go-mixins/log/v2"

// ...

logger := log.Wrap(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{
	AddSource: true,
}))

After that you can use logger directly or replace the global logger with wrapped version like this:

slog.SetDefault(slog.New(logger))

Next, when there's some context in the application, like incoming HTTP request you can add log attributes to that context. E.g. middleware to add request ID to HTTP request:

func AddIDToContext(src http.Handler) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		ctx := log.WithAttrs(r.Context(), []slog.Attr{
			slog.String("request_id", uuid.NewString()),
		})
		src.ServeHTTP(w, r.WithContext(ctx))
	}
}

Finally, use context-aware logger methods, like slog.InfoCtx to output log entries with common attributes added.