Building Extensions #14: Creating widgets with the JS SDK bundle in Zoho Desk - Hooks API

Building Extensions #14: Creating widgets with the JS SDK bundle in Zoho Desk - Hooks API

This series aims to equip developers with all they need to build extensions for Zoho Desk in Zoho Sigma and publish them in Zoho Marketplace.

Hello developers!

In our previous post, we explained the use of the resources API and provided an example of how to use them in a Zoho Desk extension. In this post, we'll continue with the Hooks API.

What is the hooks API? 

The hooks API allows developers to control the flow of UI actions through their extensions on a conditional basis. You'll need to subscribe to the hooks and, based on your requirements, you can allow the event to happen or reject it by passing either boolean values or promises in the event handler.
  • If the boolean value TRUE is passed/if the extension resolves the promise, the event will be executed.
  • If the boolean value FALSE is passed/if the extension rejects the promise, the event will be terminated and the reason for terminating the event will be displayed as an error message to end users.
Extensions with subscriptions to hooks must respond within 30 seconds of the event being triggered. If not, the control provided by the extension will be lost and the event will be executed.

What events are supported by the hooks API ?

Zoho Desk currently supports hooks for the following events:
  • Reopening a ticket
  • Closing a ticket
  • Changing the status of a ticket
  • Changing the assignee of a ticket
  • Adding a ticket comment
  • Editing a ticket comment
  • Sending a ticket reply
  • Closing a ticket on sending ticket reply
  • Updating the agent status in a channel
Click this link to find out more about the events and locations that are supported for every event within Zoho Desk.

Now that we have an understanding of the hooks API, including when and where it can be used, let's look at an example of how it can be used in an extension.

Defining the hooks API 

Below is the structure of the hooks API to be defined in your extension code.

      App.instance.on('name of the hook to be subscribed', function(){    
          //return promise or boolean   
      })

You can subscribe to the required hooks and include your required custom logic. The custom logic should either return TRUE or the promise needs to be resolved to allow the subscribed event to occur; otherwise the event occurrence will be blocked with a relevant message popping up that you provide.

Hooks related to ticket status, ticket comments, and other parameters will return data that can be used within your custom logic.  

Possible scenarios  

Let's create an extension that tracks the activities associated with a ticket in Zoho Desk. The extension monitors the activities (e.g., a call, task, or event) of Zoho Desk tickets and controls the trigger of actions based on the hooks defined.

In this example, we're configuring an extension to subscribe to the Zoho Desk hook defined for the close ticket event. With this extension, when the agent tries to close the ticket, the extension checks whether the activities mapped to the ticket are completed.

If they are completed, the extension will allow the ticket to close in Zoho Desk; otherwise, the close ticket event will not be executed and a relevant error message will be displayed. In addition, we're configuring the hook to consider the activity as completed for both cancelled and no activities as well in the ticket.

Use case implementation

To implement our use case, we'll perform the following steps. The code snippet is added for reference.
  • Obtain the activities associated with the current ticket
  • Obtain the status of the activities
  • Subscribe to the ticket status hook and handle the event handler according to the requirements
  • Subscribe a hook to close the ticket
Sample code
            window.onload = function () {
                        ZOHODESK.extension.onload().then(App=>{
                        var activityStatus;
                        ZOHODESK.get(['ticket.id']).then(function (res) {
                        var result = res.data;
                        ticketID=result["ticket.id"];

//Get the activities associated to the ticket
                       var reqObj= {
             url: 'https://desk.zoho.com/api/v1/tickets/'+ ticketID+'/activities',
             headers: {
                           'Content-Type': 'application/json'},
                           type: 'GET',
                           postBody: {},
                           connectionLinkName: "deskproject"
             }
             ZOHODESK.request( reqObj ).then(function(response){
                        var resultparse = JSON.parse(response);
                        var resultparse2=JSON.parse(resultparse.response).statusMessage;

//From the response obtain the status of the activities
                if(resultparse2!=null){
                   var resultparse3=resultparse2.data;
                   for (let i = 0; i < resultparse3.length; i++) {
                         activityStatus=resultparse3[i].status;                   }
                        }
                  })
            })

//Register a Hook for changing the status of a ticket
            App.instance.on('ticket.status', function (data) {
            return new Promise((resolve, reject) => {
            if ((data["ticket.newStatus"] == "Closed")){
            if((activityStatus=="Completed")||(activityStatus=="Canceled")||(activityStatus==null))
            {
                  return true;
            } else {
                  reject({ msg: "Incomplete Activity" });
                  }
            }
                  })
})

//Register a Hook for ticket close event
            App.instance.on('ticket.close', function () {
            if((activityStatus=="Completed")||(activityStatus=="Canceled")||(activityStatus==null))
            {
                  return true;
            } else {
                  reject({ msg: "Incomplete Activity" });
                  }
            })
                  })
            }

Result:



Here, you can see that the extension doesn't allow you to close the ticket because there is an open activity tagged. This is how the hooks API helps us to configure whether an event should happen or not, based on the hook configured.
 
We hope you found this post to be useful. Stay tuned for more posts in this space! 

See Also

    Access your files securely from anywhere









                          Zoho Developer Community




                                                • Desk Community Learning Series


                                                • Digest


                                                • Functions


                                                • Meetups


                                                • Kbase


                                                • Resources


                                                • Glossary


                                                • Desk Marketplace


                                                • MVP Corner


                                                • Word of the Day


                                                • Ask the Experts





                                                          Manage your brands on social media



                                                                Zoho TeamInbox Resources



                                                                    Zoho CRM Plus Resources

                                                                      Zoho Books Resources


                                                                        Zoho Subscriptions Resources

                                                                          Zoho Projects Resources


                                                                            Zoho Sprints Resources


                                                                              Qntrl Resources


                                                                                Zoho Creator Resources



                                                                                    Zoho CRM Resources

                                                                                    • CRM Community Learning Series

                                                                                      CRM Community Learning Series


                                                                                    • Kaizen

                                                                                      Kaizen

                                                                                    • Functions

                                                                                      Functions

                                                                                    • Meetups

                                                                                      Meetups

                                                                                    • Kbase

                                                                                      Kbase

                                                                                    • Resources

                                                                                      Resources

                                                                                    • Digest

                                                                                      Digest

                                                                                    • CRM Marketplace

                                                                                      CRM Marketplace

                                                                                    • MVP Corner

                                                                                      MVP Corner







                                                                                        Design. Discuss. Deliver.

                                                                                        Create visually engaging stories with Zoho Show.

                                                                                        Get Started Now


                                                                                          Zoho Show Resources

                                                                                            Zoho Writer

                                                                                            Get Started. Write Away!

                                                                                            Writer is a powerful online word processor, designed for collaborative work.

                                                                                              Zoho CRM コンテンツ






                                                                                                Nederlandse Hulpbronnen


                                                                                                    ご検討中の方




                                                                                                          • Recent Topics

                                                                                                          • Website Hosting

                                                                                                            Hello, I want to host my domain on Hostinger, and I want my emails to run through Zoho Mail. Please provide me with the SPF record, MX record (Type: TXT), and A record, so that I don’t face any issues with my emails. My website is on Hostinger hosting,
                                                                                                          • Can not search zoho mail after update V.1.7.0

                                                                                                            i can not search mail on to and cc box from attached picture and then search contacts box can't click or use anything. include replay mail too.
                                                                                                          • How to retreive the "To be received" value of an Item displayed in Zoho inventory.

                                                                                                            Hi everyone, We have our own Deluge code to generate a PO according to taget quantity and box quantity, pretty usefull and powerful! However, we want to reduce our quantity to order according to "To be received" variable. Seems like this might not even
                                                                                                          • Kaizen #211 - Answering your Questions | Using Canvas and Widgets to Tailor CRM for Mobile

                                                                                                            Howdy, tech wizards! We are back with the final post in addressing the queries you shared for our 200th milestone. This week, we are focusing on a couple of queries on Zoho CRM mobile configurations and custom payment gateway integration. 1. Mobile SDK
                                                                                                          • Remove "Invalid entries found. Rectify and submit again" modal

                                                                                                            Following up on a post from a few years back, but can the Zoho team consider either removing the 'Invalid entries found. Rectify and submit again' modal that displays for empty mandatory fields OR allow an admin to change it? I've built a custom error
                                                                                                          • No Functional Autosave or Manual Save Button

                                                                                                            Application : Zoho Notebook So I wanted to try Zoho Notebook(On Ubuntu) as an application, I installed the application and went solving my LeetCode problems visually(Drawing mode), at one point the app just stopped saving anything... Every time I tried
                                                                                                          • Cadence reports as front-end reports

                                                                                                            Hello everyone, We have built a cadence which is connected to the Leads module. There are 11 steps in total, 7 are automatic emails and 4 are tasks for the Lead owners. As admins, we have access to this (very nicely made) 'View Reports' tab where we can
                                                                                                          • Show elapsed time on the thank-you page?

                                                                                                            Is it possible to display the total time a user spent filling out a Zoho Form on the thank-you? I’d like to show the difference between the `form submission timestamp` and the `start time` (currently have a hidden Date-Time field set to autofill the date
                                                                                                          • Email Integration - Zoho CRM - OAuth and IMAP

                                                                                                            Hello, We are attempting to integrate our Microsoft 365 email with Zoho CRM. We are using the documentation at Email Configuration for IMAP and POP3 (zoho.com) We use Microsoft 365 and per their recommendations (and requirements) for secure email we have
                                                                                                          • I need to do crud with snippet html

                                                                                                            I need to implement a form with an improved user interface. I would like to use snippets to build a CRUD that allows me to create and update records. How could I achieve this using snippets?
                                                                                                          • Allow Stripe Credit Card and Stripe ACH payment methods to be enabled separately on an invoice.

                                                                                                            I need to be able to pick at the invoice level whether Stripe Credit Card and/or Stripe ACH payment methods are available. Currently, I'm not able to select from the two Stripe payment methods individually on an invoice. However, there are some larger
                                                                                                          • Resume Harvester: New Enhancements for Faster Sourcing

                                                                                                            We’re excited to share a set of enhancements to Resume Harvester that make sourcing faster and more flexible. These updates help you cut down on repetitive steps, manage auto searches more efficiently, and review candidate profiles with ease. Why we built
                                                                                                          • Incorrect “correct” password on email client apple mail

                                                                                                            I have troubleshot this account several times. I have deleted and re added account. It keeps saying incorrect password. Can you check that it is not locked on your end?
                                                                                                          • Is it possible to lock editing subform rows?

                                                                                                            Ideally editing would only be locked after the form has been updated but I still want them to be able to add new subform records at any time and they should be able to delete rows from the subform. It is a named subform if that's relevant however the
                                                                                                          • "Spreadsheet Mode" for Fast Bulk Edits

                                                                                                            One of the challenges with using Zoho Inventory is when bulk edits need to be done via the UI, and each value that needs to be changed is different. A very common use case here is price changes. Often, a price increase will need to be implemented, and
                                                                                                          • What is the maximum file size of a video upload in Zoho chat?

                                                                                                            Can I upload a 20 mb video file and share it with my colleagues? 
                                                                                                          • Update a field in ALL all calls under a contact

                                                                                                            HI guys! I have written some deluge code to update a field in my calls after i have comepleted the call, i need this field to update in all my scheduled calls as well that are comeing up. I just cant seem to get it to work, i have put teh code below,
                                                                                                          • Verifying Zoho Mail Functionality After Switching DNS from Cloudflare to Hosting Provider

                                                                                                            I initially configured my domain's (https://roblaxmod.com/) email with Zoho Mail while using Cloudflare to manage my DNS records (MX, SPF, etc.). All services were working correctly. Recently, I have removed my site from Cloudflare and switched my domain's
                                                                                                          • Fat Download of Ulaa Browser

                                                                                                            I just observed that Ulaa Browser is offering an one-capsule big download. These days it is a custom to offer a small bootstrap downloader and based on user customization options an appropriate download completes. And this is particularly common with
                                                                                                          • Cancelled Transfer order problem

                                                                                                            Hello, We've canceled a transfer order, and we can't add the related items to a new Transfer Order. The system tells us that the bin doesn't have the required quantity, but when we check the item, it indicates that there are 2 units in the bin. It also
                                                                                                          • Billing Management: #8 Usage Billing in Logistics & Delivery Services

                                                                                                            The logistics and delivery industry thrives on movement and precision. Every delivery completed, every kilometre driven, and every ton transported is a measurable activity. However, billing often lags behind. Many logistics companies still rely on fixed-rate
                                                                                                          • Tags for New Tickets

                                                                                                            Hi there, When creating a new ticket, there is currently no way to choose a tag you would like to associate with the new ticket. Being able to associate a tag while creating a new ticket will be very beneficial as it will save time and flow well with
                                                                                                          • Zoho Desk: No Incoming email

                                                                                                            Is Zoho Desk services down? No incoming email reflect to desk tickets.
                                                                                                          • Zoho CRM - Widgets | Update #3 : Introducing SDK V1.5 along with new ZDK Methods and ZRC Support

                                                                                                            Hello everyone! Widgets in Zoho CRM just got a big upgrade! With the release of SDK v1.5, developers can now create more immersive widget experiences. This update elevates Widget development with new ZDK methods for easier interactivity and ZRC support
                                                                                                          • Unusual activity detected, account blocked

                                                                                                            I am unable to send emails and am getting the error "Outgoing blocked: Unusual activity detected. To unblock your account, please and submit a request. Learn more.". I am unsure as to why this is happening since all my activity is legitimate, mainly confirmation
                                                                                                          • Unable to Send Emails – Outgoing Mail Blocked (Error 554 5.1.8)

                                                                                                            Description: Hello Zoho Support Team, I am facing an issue with my Zoho Mail account ( admin@osamarahmani.tech ). Whenever I try to send an email, I get the following error: 554 5.1.8 Email Outgoing Blocked I would like to clarify that I have not done
                                                                                                          • Issue connecting Zoho Mail to Thunderbird (IMAP/SMTP authentication error)

                                                                                                            Dear Zoho Support, I am trying to configure my Zoho Mail account on Thunderbird, but I keep getting authentication errors. Account: info@baktradingtn.com Domain: baktradingtn.com Settings used: IMAP: imap.zoho.com, Port 993, SSL/TLS, Normal Password SMTP:
                                                                                                          • Payment issue with Mail Lite plan – personal NIF not accepted as payment info

                                                                                                            Hello, I have already contacted Zoho Support by email regarding this, but since I haven’t received any reply yet, I’m sharing it here as well to see if the community can help. I’m facing a payment issue for my Mail Lite plan. I have a personal account
                                                                                                          • Customer payment alerts in Zoho Cliq

                                                                                                            For businesses that depend on cash flow, payment updates are essential for operational decision-making and go beyond simple accounting entries. The sales team needs to be notified when invoices are cleared so that upcoming orders can be released. In contrast,
                                                                                                          • Figma in Zoho Creator

                                                                                                            Hi Team, I’m creating a form using Figma and would like to know how to add workflows like scheduling, custom validation, and other logic to it. Can anyone help me understand how to set this up for a Figma-based Creator UI form?
                                                                                                          • Restore lost Invoice!

                                                                                                            Some time ago I tried to Upgrade from Invoice to Books. I not upgraded and staid n Invoice. Now i tried again and first i deleted the old trial of books. But now all is gone, PLEASE HELP!! i have no backup and i have to have at least 7 years data retention by law. 
                                                                                                          • Zoho Desk Down

                                                                                                            Not loading
                                                                                                          • lookup and integrated forms

                                                                                                            I might be misunderstanding things but I wanted to integrate our zoho crm contacts into creator. I imagined that when I used the integration it would mirror into creator. It did brilliant. BUT We have a ticket form in creator that we want to use a lookup
                                                                                                          • Partially receive PO without partial Bill?

                                                                                                            Most of our inventory is pre-paid. Let's say we purchase 30 pieces of 3 different items for a total of 90 pieces. It is common for our supplier to send us the items as they are ready. So we will receive 30 pieces at a time. How can I partially receive
                                                                                                          • 2 users editing the same record - loose changes

                                                                                                            Hello, I'm very new to Zoho so apology if this has been addressed somewhere i can't find. I have noticed the following: If we have 2 users put an inventory item in edit mode at the same time: say user1 click on edit and user2 while user1 is still in edit,
                                                                                                          • How to get the Dashboard page to be the first page when you open the app

                                                                                                            So when it opens on a tablet or phone it opens on the welcome page, thanks.
                                                                                                          • How I set default email addresses for Sales Orders and Invoices

                                                                                                            I have customers that have different departments that handle Sales Orders and Invoices. How can i set a default email for Sales Orders that's different than the default email for Invoices? Is there a way I can automate this using the Contact Persons Departments
                                                                                                          • Formula fields not refreshing until page is reloaded

                                                                                                            I need help/advice about the formula fields and how I can refresh the information in real-time. We have two formula fields on our deals page which show calculated prices: One formula is in a subform which calculates the subform total + 1 other field amount
                                                                                                          • How can I setup Zoho MCP with Chat GPT

                                                                                                            I can set up custom connections with Chat GPT but I cat an error when I try to set it up. The error is: "This MCP server can't be used by ChatGPT to search information because it doesn't implement our specification: search action not found" Thoughts?
                                                                                                          • API ZOHO CRM Picket list with wrong values

                                                                                                            I am using Zoho API v.8. with python to create records in a custom module named "Veranstaltung" in this custom module I've got a picket list called "Email_Template" with 28 Values. I've added 8 new values yesterday, but if I try to use on of those values
                                                                                                          • Next Page