Easily prefix your log messages with attributes from the log record using slogpfx.
- Customizable prefix formatter.
- Colored output by default.
- Works best with lmittmann/tint and mattn/go-colorable packages (some examples below).
go get -u github.com/dpotapov/slogpfxHere's a quick example to get you started:
h := slog.NewTextHandler(os.Stdout, nil)
// Use the prefix based on the attribute "service"
prefixed := slogpfx.NewHandler(h, &slogpfx.HandlerOptions{
PrefixKeys: []string{"service"}
})
logger := slog.New(prefixed)
logger.Info("Hello World!")
logger.Info("Hello World!", "service", "billing")
logger.With("service", "database").Error("Connection error")Using in conjunction with lmittmann/tint and mattn/go-colorable packages:
h := tint.NewHandler(colorable.NewColorable(os.Stdout), nil)
// Use the prefix based on the attribute "service"
prefixed := slogpfx.NewHandler(h, &slogpfx.HandlerOptions{
PrefixKeys: []string{"service"},
})
logger := slog.New(prefixed)You can customize the way prefixes are displayed using the PrefixFormatter option.
Happy Logging! 📜🖋️