ServiceNow Developer Program Code Snippets

The Cross-Table Dependency Analyzer is a custom ServiceNow solution used to dynamically detect and analyze dependencies across multiple tables (e.g., Incidents, Problems, Changes, and Configuration Items).

It is designed to provide real-time, developer-driven visibility into how updates to a single record might impact related records across the system. This helps in risk mitigation and proactive management of complex IT processes, offering more customization than standard out-of-the-box (OOB) impact analysis tools.

Dynamic Field Population from CMDB is a reusable ServiceNow solution designed to automatically populate key fields on ITSM records (such as Incidents, Tasks, or Change Requests) based on the selected Configuration Item (CI).

By fetching data like Owner, Assignment Group, Location, Department, and Business Service directly from the CMDB, the solution reduces manual data entry, ensures data consistency, and improves ITSM efficiency. It is designed to be extensible across multiple tables and can be integrated with the Service Portal using GlideAjax.

This customization extends the standard ServiceNow Change Schedule (Change Calendar) to provide increased visibility and interactivity. It is designed for Change Managers, CAB members, and ITSM users to better plan and view changes.

Key features include:

• Short Description Column: Adds visibility to the change's purpose directly in the schedule view.
• Configurable UI: Allows users to toggle the visibility of specific columns, including Configuration Item, Short Description, and Duration.
• Dynamic Refresh: Includes a Change Schedule button to refresh and display changes dynamically.
• Enhanced Data Services: Integrates additional services to fetch and render change records with more detail.

SmartData is a lightweight, reusable ServiceNow Script Include designed to automatically select between GlideAggregate and GlideRecord based on the developer's intent. This abstraction allows you to use a single API to perform various data operations efficiently, using the most performant engine for each task.

Key features include:

• Automatic Engine Selection: Switches between GlideAggregate (for counts, stats, and distinct values) and GlideRecord (for retrieving specific records or lists).
• Helper Methods: Includes describe(table) for schema inspection and preview(table, query) for quick data peeks.
• Client-Callable Support: Includes a SmartDataAjax wrapper for use in Client Scripts and UI Actions.
• Security: Uses GlideStringUtil.escapeQueryTermSeparator to sanitize queries and prevent malformed or injected encoded queries.

The MultiSelect widget allows users to select multiple incident records directly within a Service Portal page. This is a custom widget implementation designed for portal-based incident management.

/* This widget is used to enable multiple incident selection in the Service Portal. */

This snippet provides a basic implementation of an incident details schema using the ServiceNow GraphQL API. It is designed as a learning resource to demonstrate how to structure a GraphQL implementation within ServiceNow. The implementation consists of three core components:

1. Schema (schema.gql): Defines the GraphQL types, queries, and structure for incident data.
2. Scripted Resolvers (.js): Contains the JavaScript logic used to fetch and resolve the data requested in the schema.
3. Resolver Mappings (JSON): A configuration file that maps GraphQL paths to their corresponding scripted resolvers.

1. schema (schema.gql)
2. scripted resolvers (.js extension)
3. json file representing the resolver mappings (key is Path, value is Resolver)