HTML解析模板以发送电子邮件时未解析

Question

I am working on a SAAS based project for which I need to send emails to different clients on different events.

I am using email templates which use tokens (in format {{.TOKENNAME}}) that are made dynamic while sending emails. Now these token are parsed by using "html/template" package.

following is the custom function that I have made to parse these tokens into email body.

    type EmailTemplate struct{
    BookingDetails              string
}

type EmailRequest struct{
    EmailTo      string
    EmailBody    string
}

// get saved html with tokens from database
notificationTemplate, errVal := merchantDb.GetNotificationTemplate()
request := EmailRequest{
    "[e-mail]", 
    notificationTemplate.Content,
}
templateData.BookingDetails += "<p><span>Industry</span><span>"+industry.IndustryName+"</span></p>"

request.EmailSend(templateData)


func (request *EmailRequest) EmailSend(notificationTemplateData interface{}) (bool, error) {
    body, errParse := ParseTemplate(request.EmailBody, notificationTemplateData)
    //email sending code here 
}

func ParseTemplate(templateHtml string, data interface{}) (string, error) {
    var body string
    t, err := template.New("my_template").Parse(templateHtml)
    if err != nil {
        return body, err
    }
    buf := new(bytes.Buffer)

    if err = t.Execute(buf, data); err != nil {
        return body, err
    }
    body = buf.String()
    return body, nil
}

Where templateHtml is the email body with tokens and data is the interface holding dynamic values for these tokens. When I use ParseTemplate function to parse tokens as string values then it works fine. But if I have to parse html in one of my tokens then it parses html as string and in email displays html as string.

Can anybody tell me what should I do to parse html in ParseTemplate function?

Answer 1

You just need to define type EmailTemplate struct as

type EmailTemplate struct{
    BookingDetails template.HTML
}