Calling cloud code Parse Swift

Question

Im trying to use phone number verification in my app. During sign up the user will be asked for their phone number and be sent a verification code and they will enter the code and if it matches they can proceed. I have the cloud code ready but I'm not sure how exactly to call this from the app. Any help would be appreciated

What I want to be able to do is when they enter their phone number and press continue, first check that the phone number is a valid phone number, then send the sms code. finally segue to a verification view where they enter the code, if it doesn't match display an alert, if it does, log the user in

Cloud code:

var twilioAccountSid = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
var twilioAuthToken = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx';
var twilioPhoneNumber = '+1555-555-5555';
var secretPasswordToken = '1234';


var twilio = require('twilio')(twilioAccountSid, twilioAuthToken);

Parse.Cloud.define("sendVerificationCode", function(request, response) {
               var verificationCode = Math.floor(Math.random()*999999);
               var user = Parse.User.current();
               user.set("phoneVerificationCode", verificationCode);
               user.save();

               twilio.sendSms({
                              From: twilioPhoneNumber,
                              To: request.params.phoneNumber,
                              Body: "Your verification code is " + verificationCode + "."
                              }, function(err, responseData) { 
                              if (err) {
                              response.error(err);
                              } else { 
                              response.success("Success");
                              }
                              });
               });
Parse.Cloud.define("verifyPhoneNumber", function(request, response) {
               var user = Parse.User.current();
               var verificationCode = user.get("phoneVerificationCode");
               if (verificationCode == request.params.phoneVerificationCode) {
               user.set("phoneNumber", request.params.phoneNumber);
               user.save();
               response.success("Success");
               } else {
               response.error("Invalid verification code.");
               }
               });

This is where i call the cloud code:

@IBOutlet weak var continueButton: UIButton!
@IBOutlet weak var phoneNumberTextField: UITextField!
@IBAction func continueButtonTapped(sender: AnyObject) {
    var phoneNumber = self.phoneNumberTextField.text

    if phoneNumber?.utf16.count < 10 {
        displayAlert("Error", message: "You must enter a valid 10 digit US phone number including area code")
    } else {
        let params = phoneNumber
        PFCloud.callFunctionInBackground("sendVerificationCode", withParameters: params, block: { (object: AnyObject?, error) -> Void in
            if error == nil {
                self.performSegueWithIdentifier("showVerifyUserView", sender: self)
            } else {

                // Do error handling
            }
        })
    }
}

s1ddok s1ddok · Accepted Answer · 2015-12-14T21:45:38

You should use this method:

public class func callFunctionInBackground(function: String, withParameters parameters: [NSObject : AnyObject]?, block: PFIdResultBlock?)

You can call your function this way:

        PFCloud.callFunctionInBackground("sendVerificationCode",
        withParameters: /* any needed params here, for example mobile phone*/)
        { [unowned self](object:AnyObject?, error:NSError?) -> Void in
            guard error == nil else {
                //handle error
                return
            }
             // everything ok
             // notify your app that code is send successfully  

    }

Then when user enters the code do the same:

        PFCloud.callFunctionInBackground("verifyPhoneNumber",
        withParameters: /* any needed params here, for example verification code*/)
        { [unowned self](object:AnyObject?, error:NSError?) -> Void in
            guard error == nil else {
                //handle wrong notification code
                return
            }
            // code is ok, notify your app verification is complete
    }

Don't forget to deploy your code to parse with command line utility + take into account that common way to send parameters to cloud code is to send dictionaries

Update, how to send parameters:

PFCloud.callFunctionInBackground("functionName",
            withParameters: ["phoneNumber" : phoneNumber)
            { [unowned self](object:AnyObject?, error:NSError?) -> Void in
                ...


        }

Calling cloud code Parse Swift

2 Answers