Resend Parse User Verification Email Cloud Code

sample.js

// resend verify email
Parse.Cloud.define("ResendVerifyEmail", function(request, response) {
    var user = Parse.User.current();
    if (!user) {
        response.error("INVALID_USER");
        return;
    }
    var email = request.params.email;
    var query = new Parse.Query(Parse.User);
    Parse.Cloud.useMasterKey();
    query.equalTo('objectId', user.id);
    query.first().then(function(userObj) {
        if (userObj != undefined) {
            console.log("ResendVerifyEmail:" + user.id + " update email from:" + userObj.get("email") + " to:" + email); 
            userObj.unset("email"); // set empty
            return userObj.save();
        } else {
            return Parse.Promise.error("INVALID_USER");
        }
    }).then(function(updatedObj) {
        updatedObj.set("email", email); // set email to trigger resend verify Email
        return updatedObj.save();
    }).then(function(obj) {
        response.success('ok');
    }, function(error) {
        response.error(error);
    });
});

Here's a skinnier version...

Parse.Cloud.define("ResendVerifyEmail", function(request, response) {
var user = request.user;
if (!user) {
response.error("INVALID_USER");
return;
}
Parse.Cloud.useMasterKey();
var email = request.params.email;

user.set("email", email);
user.save(null,{
    success: function(userSaved){
        response.success('ok');
    },
    error: function(err){
        response.error(err);
    }
})

});

Parse.Cloud.useMasterKey() deprecated for a long time.
parse-community/parse-server#37

I think it should be as following

user.set("email", email);
user.save(null,{ useMasterKey: true }).then(function (savedUser) {
  response.success('ok');
}, function (error) {
  response.error(err);
});

Btw, In our current design, I do the follwing things.

1. provide a custom /ResetPassword REST API
2. user can trigger the this API from APP
3. /ResetPassword will check if there is user mapping with the request email.
   If there is user matched, server will trigger an reset email with mailgun/mandril with forgot password email template
   generate the encrypted token in the email link

// refer to https://stackoverflow.com/questions/20460087/issues-running-crypto-js-on-parse-cloud-code-for-ios-application/27497184#27497184
let encrypted_token = ciphering.encrypt("_SOME_PREFIX_ " + user.id + " " + user.get("email") + " " + Date.now());

4. User can check the email and get the reset password email by the link in email.
5. The forgot password email link can bring user to a custom web page, this web page will verify the token of the link.
   If the token is verified, show the reset password UI
6. User Reset their password on Web UI, the token is passed in again to verify this action is valid.