Building Extensions #3: Setting up the development environment and building extensions for Zoho Desk

Building Extensions #3: Setting up the development environment and building extensions for Zoho Desk

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.

Welcome back, Developers!

With our previous post on the basics of extensions and the scope of building them, we'd like to continue the momentum by discussing the process of actually building extensions for Zoho Desk. In this post, we'll address the technical prerequisites to develop extensions for Zoho Desk. We will also take you through the steps involved in creating and testing your extension.

The first step to build extensions for Zoho Desk is to download and install Node.js, followed by ZET (Zoho Extension Toolkit). ZET is the CLI tool offered by Zoho Desk that comes with a built-in http server to render the extension. It also enables you to build, test, validate, and package your extensions.

Setting up the development environment 

Installing Node.js 

You can install the Node.js runtime environment here (versions 7.1.0 and above are supported). Once you have installed Node.js, run the following command to verify it.

 $ node -v
 $ npm -v

Installing ZET CLI

Install ZET CLI, which enables you to build your extensions for Zoho products.
  • If you are a Mac/Unix user, run the following command to install ZET: 
 $ sudo npm install -g zoho-extension-toolkit
  • If you are a Microsoft Windows user, run the following command:
 $ npm install -g zoho-extension-toolkit
  • Use the following command to check the version:       
 $ zet -v
  • Use the help command to view all the available commands in ZET CLI and their usage.     
 $ zet -help

ZET commands:

init: Creates the skeleton of the extension project. It scaffolds the index file of your project with the necessary code to ease the development process.
run: Starts an https server in the current directory to serve the assets in it.
validate: Helps developers to ensure the extension is in alignment with the Zoho Desk guidelines.
pack: It will create ZIP file in the current directory to host extension's static assets in Zoho servers.


Building your extension 

Once the required development environment is set up, you are ready to build and test your extension. To start building your extension, you need to create a new project in ZET CLI.

Create a new project

Open your terminal and move to the directory under which you will be creating a new project for your extension.
  • Run the following command. This command will display the list of all Zoho Products for which extensions can be developed.
 $ zet init
  • Use the arrow keys to choose Zoho Desk and press Enter.    
 $ zet init
 ? Select the Zoho service for your widget and hit enter key (Use arrow keys)
 > Zoho Desk
   Zoho CRM
   YES 
  • You will be prompted for the Project Name.
  • Provide a project name and click EnterYou will have to choose Yes/No based on your need for module support.
Note: We will be discussing module support in detail in a separate post. If you are a beginner developing your first extension, you can choose No.

Now, the project directory with all the necessary folders, dependency code packages, and files will be created.

 D:\zet\projects>D:\zet\projects>zet init
 ? Select the Zoho service for your widget and hit enter key Zoho Desk
 ? Project Name demoproject
 Initializing project at: D:\zet\projects\demoprojects
 Installing NPM dependencies…
 Project Initialized D:\zet\projects\demoprojects
 Run the following commands:
 cd demoproject
 zet run



The image below represents the project's default folder structure. The widget.html file is the default widget created within the project. Let's test this extension using this sample widget.


Testing your extension

You need to perform the following steps to test your extension:
  1. Start server in your local host
  2. Activate development mode in Zoho Desk

Starting the server

To start the local host server, navigate to the newly created project's directory and execute the following command.

 $ zet run

The http server will start and be accessible through port 5000 of your local machine.

Activate development mode

  1. Log into your Zoho Desk account. 
  2. Click on the gear icon in the top right corner and go to the Setup page.
  3. Click Build Extensions under Developer space.
  4. Click the Enable Developer Mode button in the top right corner of the page.Developer mode will be enabled.
  5. Go to the Tickets module and open a ticket.
  6. Click the Extension icon to the right of the Ticket details page. The extension widget page will appear. 


We hope you found this post useful. Try it out and let us know your feedback! We really appreciate hearing from you.

Stay tuned!


See Also


<<Previous                                                                                                                                                                                                    Next>>

    Access your files securely from anywhere

          Zoho Developer Community




                                    Zoho Desk Resources

                                    • Desk Community Learning Series


                                    • Digest


                                    • Functions


                                    • Meetups


                                    • Kbase


                                    • Resources


                                    • Glossary


                                    • Desk Marketplace


                                    • MVP Corner


                                    • Word of the Day



                                        Zoho Marketing Automation


                                                Manage your brands on social media



                                                      Zoho TeamInbox Resources

                                                        Zoho DataPrep Resources



                                                          Zoho CRM Plus Resources

                                                            Zoho Books Resources


                                                              Zoho Subscriptions Resources

                                                                Zoho Projects Resources


                                                                  Zoho Sprints Resources


                                                                    Qntrl Resources


                                                                      Zoho Creator Resources



                                                                          Zoho Campaigns 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 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

                                                                                                  • Show iFrame of related List inside of Blueprint Transition

                                                                                                    Hey, is it possible to show an iFrame of a related list like this inside of a Blueprint transition?
                                                                                                  • Lookup Fields not Converting

                                                                                                    I manage holiday properties. I have a lookup to the Accounts (Properties) in the Leads module. The lookup is connected to the property address field. When I convert it the lookup field does not update in Deals, although the property address does. There
                                                                                                  • 2024: A Year of Transformation with Zoho Forms

                                                                                                    As we close the curtain on another exciting year, it’s time to reflect on the strides Zoho Forms has taken in 2024. From empowering businesses with advanced tools to simplifying workflows and enhancing user experiences, our updates this year were all
                                                                                                  • Stop selling out of stock Items.

                                                                                                    Hi I have been using Zohobooks for a around 8 month now. I am not involved in selling process but my staff cant stop selling product which they do not hold in stock, this is a big headache for me as physical count never matches what is shown on the books. 
                                                                                                  • Bigin API Token Request ("invalid_client")

                                                                                                    Hi people, I tried to connect to the API without success, I've read all of the documentation multiple time and tried just about everything. I tried to do it with Python Request module and with Postman, passing the information through both the URL parameter
                                                                                                  • Customer Happiness not clickable when using API

                                                                                                    Is there a way to automatically add the Customer Feedback links when generating email drafts via the API? Currently, the feedback links are only added when generating an email draft using the UI. I tried using the endpoint described in https://desk.zoho.com/DeskAPIDocument#CustomerFeedback#CustomerFeedback_Getthecustomerfeedbackplaceholderlink
                                                                                                  • Send To Zoho Sign not Showing

                                                                                                    The button send to Zoho sign is not showing on my Zoho CRM . Is there additional steps I need to take after installing Zoho Sign to CRM ?
                                                                                                  • How to Get An Image's URL once it's uploaded to library?

                                                                                                    I manage to find URLs to the images I uploaded to my library, but after a day, it seems the links stop working like its only temporary. Where can I find the ACTUAL solid URL for my images that I upload to my Library so I can use them for my custom template / HTML coded template? Thanks, Mac
                                                                                                  • 【Zoho CRM】インポート機能のアップデート:既存データへのタグ追加が可能に!

                                                                                                    ユーザーの皆さま、こんにちは。コミュニティチームの藤澤です。 今回は「Zoho CRM アップデート情報」の中のインポート機能のアップデートをご紹介します。 Zoho CRMのタグは、データを効率的に分類、認識するためのラベルです。 タグ付けは次の3つの方法で行えます: 個別タグ付け:少数のデータを手動でタグ付け 自動化:特定のタイミングで繰り返しタグ付け 一括更新:インポート機能でタグを追加または更新 今回のアップデートでは、インポート時に既存のタグを残したまま、新しいタグの追加、既存タグを置き換えできるようになりました。
                                                                                                  • Link to Desk tickets

                                                                                                    Hello, We are using Analytics to analyze data in Desk. Is there a way to embed a link to a ticket in reports?  We'd love to be able to see the drill down data, and click a value in a result row that would launch the Desk Ticket in another window/tab. Thanks in advance for any ideas!
                                                                                                  • Bluerprints: How to connect the created record back?

                                                                                                    I've a blueprint which creates another record as part of an 'After' transition. But the two records don't seem to be linked together. If it's not automatic - how do I get the created record ID to link it to the original record? Thanks!
                                                                                                  • Populate a Related List Item based on a Stage

                                                                                                    I would like to know if I can populate a CLOSED DEAL section in a contact that populates only when a Deal (something in the Deal Module) is listed as Closed - Won. I'd like another section that is just called deals, which shows me all other deals that
                                                                                                  • Being able to draw inside a module ?

                                                                                                    I was wondering if anyone know of a solution for this request. We would like to be able to draw directly from one module in the CRM and have it attached to that record. Here is an example. Paul would go to the customer once he as done the measuring, he
                                                                                                  • 2 serial numbers for 1 item (Mac address and Serial number)

                                                                                                    There is a way to track 2 serial number type for 1 Item. Ex: Some electronic devices have a MAC address and a serial number. I need to track those 2 numbers
                                                                                                  • Holidays

                                                                                                    Hi; For defining Holidays, you need to add logic to handle the year as well as the month & day. We need to be able to enter Holidays for the next year. I need to add a holiday for January 2, 2017, but I can't until January 1st, which is a Sunday and we
                                                                                                  • Delete a department or category

                                                                                                    How do I delete a Department?  Also, how do I delete a Category? This is pretty basic stuff here and it's impossible to find.
                                                                                                  • Remove or hide default views

                                                                                                    I'm looking to only have the views pertinent to my organization.  Is there a way to show only my custom views (or separate them to a different area or something)? If not, this should be a feature as switching from Zendesk we had this option...
                                                                                                  • Analytics Module: Can you move items from one dashboard to another?

                                                                                                    Is there a way to move items from one dashboard to another? I want to rearrange my dashboard now that I know what i'm doing but i don't want to remake my various widgets? Edit: Hey Zoho, This would be a good feature: to be able to move/copy widgets to
                                                                                                  • Copy Widget to another Dashboard

                                                                                                    I can see the option to clone a widget to the same dashboard but is it possible to copy it to another dashboard?
                                                                                                  • Is there a way to print the dashboard?

                                                                                                    I would like the capability of printing the dashboard - is that possible?
                                                                                                  • Custom Deal Name in Lead Conversion Mapping

                                                                                                    I know there are ways to change the name of a Deal after conversion using a custom function, so no need to repost that information. I would like to see the CRM Improved with Deal Name Customisation and I think the Lead Conversion Mapping page would be
                                                                                                  • Introducing Record Summary: smarter insights at your fingertips

                                                                                                    Hello everyone, Building on the recent launch of Zoho's in-house Zia Large Language Model (Zia LLM)—a major milestone in Zoho CRM’s AI capabilities—we’re excited to introduce the Record Summary feature. This powerful addition makes use of Zia LLM to simplify
                                                                                                  • Suppress "spreadsheet will not be saved" message on published sheet

                                                                                                    I have published a sheet and have one column on that sheet that the user can edit (a dropdown picklist where the user can select the status for each line). Is there a way to suppress the Zoho Sheet message "Any changes made to this published spreadsheet
                                                                                                  • Missing "Email Authentication" tab

                                                                                                    Backstage is alerting users about "Unauthenticated Domains" with a large prompt in the backend. It adds a link to learn more. On this tutorial page, it shows where to find the "Email Authentication" tab in this screenshot. However, in our Backstage, that
                                                                                                  • Show item Cost value on Item screen

                                                                                                    The Item screen shows Accounting Stock and Physical Stock. It would be very helpful if value information could be displayed here as well, for instance Cost Price. Currently, to find the Cost Price (as used for inventory valuations) from inside the item
                                                                                                  • Zoho Analytics to Zoho Sheets - automatic update?

                                                                                                    Hi all, If I create a zoho sheet from an Analytics Report or Analytics Data, is there a way for the zoho sheet to automatically update as the Report / Data in analytics updates?
                                                                                                  • Integration with Moodle

                                                                                                    Greetings, I hope find all doing well and safe. I've recently returned to using Zoho Flow after a break and was hoping to connect my WooCommerce store with Moodle, the world's most widely used learning management system. My goal was to automatically enroll
                                                                                                  • How to Record Loan with interest

                                                                                                    I have received loans from friend he give me like 2 loans so far one is one year repayment and one short, how to properly record his payment, and repayment and give him statement  for each loan he give me 
                                                                                                  • Task status - completed - other options

                                                                                                    I have a dumb question I know i can make custom statuses for the tasks - but is there anyway to make additional "completed" statuses like for instance if i have a task "call back customer" and i leave a vm for them to call back marking it "completed -
                                                                                                  • Task module and related-to field

                                                                                                    In modules other than the Task Module I can add several lookup fields to provide a variety of relationships. In the Task module lookup fields are not available. There is only one "related to" field which I want to use for Company. But I want to relate
                                                                                                  • Add Lookup Field in Tasks Module

                                                                                                    Hello, I have a need to add a Lookup field in addition to the ones that are already there in the Tasks module. I've seen this thread and so understand that the reason lookup fields may not be part of it is that there are already links to the tables (https://help.zoho.com/portal/en/community/topic/custom-fields-on-task-module).
                                                                                                  • migrating from Zoho Invoices (CRM) to Zoho Books

                                                                                                    Good day, I was wondering if there was a easy way to migrate all the quotes and invoices from Zoho Invoices CRM to Zoho Books. We plan to move to using Zoho Books in a few weeks and would like to have all the quotes and invoices from the past 3 years
                                                                                                  • Zoho MA and Custom Module

                                                                                                    I am trying to create a sync between Markting Automation and Zoho CRM. I am mapping a custom module from the CRM. The custom module has email field mobile phone field However I cannot finish the integration since the system keeps asking me for email or
                                                                                                  • When is partial reimbursement going to be launched?

                                                                                                    Hi there. I saw somewhere that the partial reimbursement feature is in the work. What is the update and ETA of that? Our clients and prospects have been asking us and we agree that that is an important feature to have.
                                                                                                  • Year-End Wrap: Declutter Your Inbox Using Email Filters

                                                                                                    Ping!—an email drops in. And another. And another! It's finally that time of the year when your inbox will be bursting with messages from team members, clients, and marketing agents, leaving you feeling overwhelmed and distracted. Sounds familiar? Now
                                                                                                  • Unified Notes View For Seamless Collaboration

                                                                                                    To facilitate better coordination among different departments and team members, the notes added to a record can now be accessed in all its associated records. With this, team members, from customer service representatives to field technicians, can easily
                                                                                                  • Q4 Europe In-person Zoho User Group Meetup: Streamlining Your Business Processes & Introduction to Zoho CRM for Everyone

                                                                                                    Hello Zoho Community, We are excited to announce our upcoming Zoho User Group meetup in Europe! This session is designed to help you streamline your business processes using Zoho CRM, with a special focus on enhancing customer interactions and leveraging
                                                                                                  • Formula fields - Request for dynamic recalculation / proper implementation

                                                                                                    Hi Guys, I have a big problem with Zoho formula fields. They don't recalculate each time the record is viewed - only when a record is edited. Formula fields should be updated dynamically each time a record is retrieved. As an example: I have a formula
                                                                                                  • Items attribute questions

                                                                                                    Many of my items have attributes, such as size and color. How can I add new fields to the "New Items" screen to capture that in my Purchase Orders, Items, and Sales Order pages? I only see these attribute fields when adding an Item Group. Also, on the
                                                                                                  • Organize and Track Phases with Phase Custom Views

                                                                                                    Phase Custom Views let you filter and display phases based on specific criteria. This helps you focus on what’s most relevant for you and your team. Filter phases using criteria such as budget, status, and more. Share views with specific users or teams
                                                                                                  • Next Page