ServiceNow Institute - ServiceNow Online Training
                     Understanding
Scripted REST APIs
Simplifying Custom API Development in Modern Platforms
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 Introduction
 What is a REST API?
 Key principles: Statelessness, Resource-based, Use of 
HTTP methods (GET, POST, PUT, DELETE)
 Role in modern web and cloud applications
• Visual: Diagram showing client-server communication 
via REST
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What are Scripted REST APIs?
 Custom REST APIs created using scripts 
(e.g., in ServiceNow, Salesforce, etc.)
 Extend platform capabilities by exposing 
business logic as APIs
 Enables developers to define endpoints, 
methods, and behaviors
• Visual: Diagram showing Scripted API 
between client and platform
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Where Are Scripted REST
APIs Used?
 Enterprise platforms like ServiceNow, Salesforce, Azure 
Logic Apps
 Integration with third-party systems
 Workflow automation and data exchange
• Example scenarios: HR system integration, ticketing 
system, IoT apps
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Benefits of Scripted REST APIs
 Customization: Tailor APIs to specific business 
logic
 Flexibility: Control over request/response 
behavior
 Security: Built-in authentication and roles
 Efficiency: Minimize middleware or external 
tools
• Visual: Icons representing each benefit
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Key Components of a
Scripted REST API
 Resource Path – The endpoint URI
 HTTP Methods – GET, POST, PUT, DELETE
 Request & Response Formats – JSON, XML
 Security Rules – Authentication, ACLs
• Visual: Tabular layout or simplified API component diagram
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How Scripted REST APIs Work (Concept Flow)
 Client sends request → Script processes 
logic → Server returns response
 Middleware-like logic runs behind the 
scenes
• Visual: Flowchart showing request-
response cycle with scripting logic in 
the middle
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Best Practices for Using
Scripted REST APIs
 Keep logic clean and modular
 Validate input to prevent misuse
 Implement error handling and logging
 Secure endpoints with authentication and rate limiting
• Document your API for consumers
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Conclusion & Summary
 Scripted REST APIs bridge the gap between 
platform capabilities and external integrations
 Ideal for custom workflows, secure data 
exchange, and enhancing automation
 Understanding concepts is crucial before 
diving into implementation
• Visual: Summary checklist or key takeaway 
bullets
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