WhatsApp Go MCP

package usecase import ( "context" domainNewsletter "github.com/aldinokemal/go-whatsapp-web-multidevice/domains/newsletter" "github.com/aldinokemal/go-whatsapp-web-multidevice/infrastructure/whatsapp" "github.com/aldinokemal/go-whatsapp-web-multidevice/pkg/utils" "github.com/aldinokemal/go-whatsapp-web-multidevice/validations" ) type serviceNewsletter struct{} func NewNewsletterService() domainNewsletter.INewsletterUsecase { return &serviceNewsletter{} } func (service serviceNewsletter) Unfollow(ctx context.Context, request domainNewsletter.UnfollowRequest) (err error) { if err = validations.ValidateUnfollowNewsletter(ctx, request); err != nil { return err } JID, err := utils.ValidateJidWithLogin(whatsapp.GetClient(), request.NewsletterID) if err != nil { return err } return whatsapp.GetClient().UnfollowNewsletter(JID) }