用于使用SendGrid发送电子邮件的DRY代码

Question

I have this code inside a post route:

The first one is to alert my when a user register in my site:

sendgrid.send({
        to:         "my@email.com",
        from:       "myother@email.com",
        subject:    "[ALERT] " + req.body.eventDate,
        html:       "SOME HTML",
    },
    function(err, json) {
        if (err) {
            return console.error(err);
        } 
        else {
            next();
        }
});

The next one is a confirmation email send to the new register member:

sendgrid.send({
        to:         req.body.email,
        from:       "my@email.com",
        subject:    "[CONFIRM] register" + req.body.eventDate,
        html:       "SOME HTML",
    },
    function(err, json) {
        if (err) {
            return console.error(err);
        } 
        else {
            next();
        }
});

Is working 100%, but this is not a good practice, there is so much duplicate. Can i DRY this? If so, howww??

Thanks!!!

Answer 1

You can create a function which can perform the operation of sending emails using sendgrid like this,

function sendEmail(options) {
  sendgrid.send(options,
    function(err, json) {
        if (err) {
            return console.error(err);
        } 
        else {
            next();
        }
  });
}

And then you can utilise above created function as following,

For sending registration email

var registrationEmailOptions = {
        to:         "my@email.com",
        from:       "myother@email.com",
        subject:    "[ALERT] " + req.body.eventDate,
        html:       "SOME HTML",
}
sendEmail(registrationEmailOptions);

For sending confirmation email.

var confirmationEmailOptions = {
        to:         req.body.email,
        from:       "my@email.com",
        subject:    "[CONFIRM] register" + req.body.eventDate,
        html:       "SOME HTML",
}
sendEmail(confirmationEmailOptions);