Kaizen #165 : How to call Zoho CRM APIs using Client Script

Kaizen #165 : How to call Zoho CRM APIs using Client Script



Welcome back to another exciting Client Script post!
In this post, we will discuss one of the most frequently asked questions: How do you call Zoho CRM APIs from Client Scripts?

In this kaizen post,


1. Ways to make calls to Zoho CRM APIs using Client Script
      1.A  Client Script ZDK CRM APIs
      1.B. Using Connections
2. Requirement
3. Solution
      3.A. Create a Connection
      3.B. Invoke API using Client Script
4. Summary
5. Related Links



1. Ways to make calls to Zoho CRM APIs using Client Script

1.A  Client Script ZDK CRM APIs 
  • You can use the available Client Script ZDK CRM APIs to call v2 APIs directly from within your Client Script. 
  • To view this documentation, click on the help icon next to CRM API in the Library Section of the Client Script Editor. Here is how the screenshot of the documentation looks.


1.B. Using Connections

For calling other Zoho CRM APIs(other than the APIS covered in Client Script's ZDK CRM API) or third-party services, you will have to use Connections along with Client Script. In this post, let us see how to call Zoho CRM APIs. Check the Kaizen post on Third Party Integration using Client Script to know how to call Third Party APIs from Client Script.

2. Requirement

To retrieve all open deals for the currently viewed account.

3. Solution

To fetch app open deals for an account, you can use  COQL API. You can also use the Related Records API, get deals of a given account ID, and then filter the open deals.
But COQL API is recommended due to the following reasons.
- There is no indexing delay.
- You can use comparators such as is null, is not null, between, in, not in, like, and not like in your search query.
- You can fetch data from other lookup modules if any. Click this Kaizen Post for more details.
To accomplish this requirement, create a connection with the scopes for the API you want to call and create a Client Script

3.A. Create a Connection
  • To setup Connection, follow the below steps.
  • In Zoho CRM, go to Setup → Developer Hub → Connections and click "Create Connection".

  1. Select Zoho OAuth in Default Services and click "Create and Connect".

  • Specify a name for the Connection and select the Scopes required for COQL API.
ZohoCRM.coql.READ (and) ZohoCRM.modules.READ
(or)
ZohoCRM.modules.{module_name}.{operation_type}

  • Click Create and Connect.


3.B. Invoke API using Client Script
  • Go to Setup → Developer Space →Client Script. Click +New Script.
  • Specify the details to create a script and click Next.

  • Enter the following script and Click Save.

  1. var acc=$Page.record_id;
  2. var parameters = {
  3. "select_query": `SELECT Stage,Account_Name.id from Deals where Stage not in ('Closed Lost','Closed Won','Closed - Lost to Competition') and Account_Name.id = ${acc}`
  4. };
  5. var response = ZDK.Apps.CRM.Connections.invoke("test", "https://www.zohoapis.com/crm/v6/coql", "POST", 2, parameters, {});
  6. log(JSON.stringify(response));
  • You can invoke COQL API using Connections in Client Script using invoke() method.


Click here to know more about the Connections.
Here ,
  • Connection name is test
  • url is https://www.zohoapis.com/crm/v7/coql
  • method is POST
  • param_type is 2
  • parameters is the query stored in parameters variable.
  • headers - there are no headers in this case.
Summary

In this post we have discussed the following.
1. How to call COQL API using Client Script 
2. Steps involved to include the scopes via Connection
3. Advantages of COQL API



      • Sticky Posts

      • Kaizen #222 - Client Script Support for Notes Related List

        Hello everyone! Welcome to another week of Kaizen. The final Kaizen post of the year 2025 is here! With the new Client Script support for the Notes Related List, you can validate, enrich, and manage notes across modules. In this post, we’ll explore how
      • Kaizen #217 - Actions APIs : Tasks

        Welcome to another week of Kaizen! In last week's post we discussed Email Notifications APIs which act as the link between your Workflow automations and you. We have discussed how Zylker Cloud Services uses Email Notifications API in their custom dashboard.
      • Kaizen #216 - Actions APIs : Email Notifications

        Welcome to another week of Kaizen! For the last three weeks, we have been discussing Zylker's workflows. We successfully updated a dormant workflow, built a new one from the ground up and more. But our work is not finished—these automated processes are
      • Kaizen #152 - Client Script Support for the new Canvas Record Forms

        Hello everyone! Have you ever wanted to trigger actions on click of a canvas button, icon, or text mandatory forms in Create/Edit and Clone Pages? Have you ever wanted to control how elements behave on the new Canvas Record Forms? This can be achieved
      • Kaizen #142: How to Navigate to Another Page in Zoho CRM using Client Script

        Hello everyone! Welcome back to another exciting Kaizen post. In this post, let us see how you can you navigate to different Pages using Client Script. In this Kaizen post, Need to Navigate to different Pages Client Script ZDKs related to navigation A.