What are the steps for transmitting an array of data to Parse Cloud Code?

Trying to send an array of contact emails as a parameter in Cloud Code function for Parse, here is how I am doing it:

HashMap<String, ArrayList<String>> params = new HashMap<>();
ArrayList<String> array = new ArrayList<>();
array.add("contact email 1");
array.add("contact email 2");
array.add("contact email 3");

params.put("contacts", array);

ParseCloud.callFunctionInBackground("cloudFunctionName", params, new FunctionCallback<Object>() {
    @Override
    public void done(Object o, ParseException e) {
        // do something
    }
});

In the cloud function definition:contacts should look like this:

{"contacts" : ["contact email 1", "contact email 2", "contact email 3"]}
. Each email will have some logic applied to it.

var _ = require("underscore");

Parse.Cloud.define("cloudFunctionName", function (request, response) {
var contacts = request.params.contacts;

_.each(contacts, function(contactEmail) {
    var userQuery = Parse.Query(Parse.User);

    userQuery.equalTo("email", contactEmail);

    userQuery.first().then(
        function(user) {
            // there is a user with that email
        },
        function(error) {
            // no user found with that email
});

});

The problem arises when sometimes contactEmail becomes undefined.

An error pops up saying:

Result: TypeError: Cannot call method 'equalTo' of undefined
on line where
userQuery.equalTo("email", contactEmail);
is present.

Even after adding a check like

if(typeof contactEmail != "undefined") { userQuery.equalTo("email", contactEmail); }
, the error persists.

I also ensure that the email string is not empty before including it in the array.

How can this issue be resolved?

Answer №1

Revamp your JavaScript code to construct the Users query as shown below:

let queryUsers = new Parse.Query(Parse.User);

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Showing particular URL text upon opening a new window using JavaScript

I've encountered an intriguing scenario. In my application, there's a feature that triggers a new window/tab to open when a button is clicked. Upon opening, a predefined HTML page is shown to the user with a specific URL set. I'm curious abo ...

Move the menu button to the right of the title slide, beyond the edge of the card

Having an issue with the MuiCardHeader component. <CardHeader disableTypography avatar={renderAvatar()} action={ <IconButton onClick={toggleMenu}> <img src={MoreIcon} alt=""/> </IconButton ...

Regular expression allowing only letters and spaces while preventing leading and trailing spaces in the input string

These are the requirements I have set for validating an input field: The input should only consist of alphabets and spaces placed between the alphabets. No spaces are allowed at the start or end of the string. No other special characters are permitted. ...

Gruntjs Live Reload is actively monitoring for changes, yet fails to refresh the page

Check out my Gruntfile.js here Also, take a look at my package.json here I ran npm install in the main directory of my workspace (using WAMP) and it created a node_modules folder along with several subfolders. After navigating to the directory c:\w ...

Preventing default events and continuing with jQuery

Currently, I am working on a Django project and have integrated the Django admin along with jQuery to insert a modal dialog between the submission button and the actual form submission process. To accomplish this, I have included the following code snippe ...

Dynamic content is loaded on the page using AJAX before refreshing to retrieve new

I am using the FullPage.js plugin and attempting to enable navigation between pages using AJAX. While using .load();, I am able to retrieve the desired page. However, it seems that I need to reload fullpage.js since the loaded page is not active and the s ...

Attribute specified does not belong to type 'DetailedHTMLProps<ButtonHTMLAttributes

I am working on creating a reusable 'button' component and I would like to include a href attribute so that when the button is clicked, it navigates to another page. An Issue Occurred: The following error was encountered: 'The type '{ ...

Encountering a build error in Next.js 13 when attempting to fetch an API route within a server component

I encountered an issue while building my next app (yarn run build). To troubleshoot, I created a new clean project and tested it. The problem seems to be with my route (/api/categories/route.ts) export async function GET() { return new Response(JSON.str ...

Inconsistent CSS3 transitions behavior in Firefox 4

I have been playing around with some css3 transitions and created a slider test. It works perfectly in webkit browsers, but I have noticed an issue in Firefox 4. When clicking on the left link for the first time, the slider is supposed to slide to the left ...

Learn how to retrieve data using the $.ajax() function in jQuery and effectively showcase it on your HTML page

Can someone assist me with extracting data from https://jsonplaceholder.typicode.com/? Below is the AJAX call I'm using: $.ajax({ url: root + '/posts/', data: { userId: 1 }, type: "GET", dataType: "json", success: function(data) { ...

Switch between the table data elements in an .hta document

The response provided by Dr.Molle in a previous post here was accurate, but it only functioned with <div>. I am required to utilize <table>. Though I found a script that works flawlessly outside of my VBScript, it does not work when embedded in ...

Search through an array, identify duplicates, and transfer them into a separate array

I am working with an array of objects containing dates and I am looking to extract objects with the same date values into a new array. Below is the code snippet. var posts = [ { "userid": 1, "rating": 4, "mood": "happy", "date": "2 ...

Can we not customize a nested component using the 'styled()' function in MUI?

Looking at the code snippet below, my attempt to style an MUI Stack component within an MUI Dialog component seems to be falling short. The Stack styles are not being applied as expected: const CustomDialog = styled(Dialog)(({ theme }) => ({ ' ...

Tips for choosing or moving to an iframe

What is the best method for choosing or transitioning to an Iframe (as the currently targeted document) using Selenium webdriver in Firefox? Are there alternative approaches for selecting an iframe with or without webdriver? driver.switchTo.frame("Frame ...

Is there a way to retrieve values from TextFields and Select elements by simply clicking on a button?

I am currently working on a project using react, redux, and material ui. I need to retrieve data from a TextField in order to make an order. The code snippet below showcases my current implementation: <Select value={product.color_set[0].title}> { ...

The error message "IntelliJ, unable to find symbol assertEquals in Junit 4 with Maven"

The Maven JUnit 4.12 dependency is causing issues - both with static and without it. The `assertEquals` method appears in red and is not resolved. The `Assert.` does not display any methods. I attempted to resolve this by adding the AssertJ library as a d ...

What is the reasoning behind storing type definitions in the @types namespace within npm?

Have you ever wondered why type definitions in npm are stored under the @types namespace which isn't directly linked to a specific organization, user, or library? Wouldn't it make more sense for npm libraries to have their types located under @[o ...

Distinguishing between el and $el in Backbone.Js: What sets them apart?

I spent the entire afternoon struggling with this particular issue, but finally managed to resolve it. It ended up being a mix-up between assigning el and $el. Can anyone clarify the distinction between these two terms and provide guidance on when to use ...

Is it possible to display a thumbnail image in a separate full-sized window by using CSS or JavaScript?

I am currently utilizing a program called WebWorks 2020.1 that automatically creates <img> tags from my FrameMaker source input when published to DHTML. Unfortunately, I do not have the ability to directly modify the HTML <img> or <a> tag ...

Align the date input field to the center for better visual appeal

I am facing a challenge in centering the date in an input, not the entire input element inside a div. When I attempt to center it, the date gets positioned within a portion of the input due to a resizable right-hand side panel for selecting a date from a c ...