package meta

import (
	"context"
	"github.com/go-kratos/kratos/v2/metadata"
)

const (
	XMdGlobalOperator = "x-md-global-operator"
	XMdGlobalAppid    = "x-md-global-appid"
	XMdServiceName    = "x-md-service-name"
)

func Set(ctx context.Context, kv ...string) context.Context {
	return metadata.AppendToClientContext(ctx, kv...)
}

func Get(ctx context.Context, key string) string {
	if meta, ok := metadata.FromClientContext(ctx); ok {
		return meta.Get(key)
	}
	return ""
}