sing-box/common/httpclient/context.go

package httpclient

import "context"

type transportKey struct{}

func contextWithTransportTag(ctx context.Context, transportTag string) context.Context {
	return context.WithValue(ctx, transportKey{}, transportTag)
}

func transportTagFromContext(ctx context.Context) (string, bool) {
	value, loaded := ctx.Value(transportKey{}).(string)
	return value, loaded
}