Client-Side APIs run in the user's browser and help interact with forms, fields, and UI elements without making unnecessary server calls. They are commonly used in:
var MyScriptInclude = Class.create(); MyScriptInclude.prototype = Object.extendsObject(AbstractAjaxProcessor, { getUserDepartment: function() { var userID = this.getParameter('sysparm_user_id'); var user = new GlideRecord('sys_user'); if (user.get(userID)) { return user.department.toString(); } return ''; } });
GlideList (g_list) – List Customization API
Used to manipulate list views dynamically.
✔ Example: Refresh a list
Example: Add a filter to a list
g_list.setFilter('priority=1');
Best Practices for Using Client-Side APIs
- Optimize Performance – Minimize GlideAjax calls to avoid excessive server requests.
- Use Conditions – Only execute scripts when necessary (if (g_form.getValue('state') == 'New')).
- Test on Different Forms – Ensure scripts work across different scenarios.
Conclusion
Client-Side APIs are essential for enhancing ServiceNow's UI/UX by making forms dynamic and interactive. Mastering these APIs helps in building efficient, user-friendly applications that improve productivity.
What’s your favorite Client-Side API? Share your use cases in the comments!
