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{{if .Link}} Clicklink {{end}} ` type MailContent struct { Text string Link string } func NewEmailer(conf ConfigSMTP) (*Emailer, error) { dialer := gomail.NewDialer(conf.Server, conf.Port, conf.Login, conf.Password) closer, err := dialer.Dial() if err != nil { return nil, err } defer closer.Close() htmlTemplate, err := template.New("verify-email").Parse(MSG_TEXT) if err != nil { return nil, err } return &Emailer{ senderEmail: conf.Email, htmlTemplate: htmlTemplate, dialer: dialer, }, nil } type Emailer struct { senderEmail string htmlTemplate *template.Template dialer *gomail.Dialer } func (e *Emailer) SendRestorePassword(email, token string) error { return e.sendEmail("Restore your password", email, MailContent{ Text: "Token: " + token, }) } func (e *Emailer) SendVerifyUser(email, link string) error { return e.sendEmail("Verify your email", email, MailContent{ Text: "You recieved this message due to registration of account. Use this link to verify email:", Link: link, }) } func (e *Emailer) SendPasswordChanged(email string) error { return e.sendEmail("Password changed", email, MailContent{ Text: "You recieved this message due to password change", }) } func (e *Emailer) sendEmail(subject, to string, content MailContent) error { builder := &strings.Builder{} if err := e.htmlTemplate.Execute(builder, content); err != nil { return err } m := gomail.NewMessage() m.SetHeader("From", m.FormatAddress(e.senderEmail, "Pet Backend")) m.SetHeader("To", to) m.SetHeader("Subject", subject) m.SetBody("text/html", builder.String()) return e.dialer.DialAndSend(m) }