Infor SyteLine

SyteLine REST API Integration Guide

SyteLine CloudSuite Industrial exposes its data and business logic through REST APIs built on the IDO web services layer. These APIs enable integration with e-commerce platforms, CRM systems, warehouse management systems, and custom applications. Understanding the API architecture—authentication mechanisms, IDO endpoint patterns, payload structures, and rate limiting—is essential for building reliable integrations that scale. This guide covers the practical aspects of SyteLine API integration from an implementer's perspective.

API Architecture and Authentication

SyteLine REST APIs are served through the IDO Web Services component, which exposes IDO operations as HTTP endpoints. Authentication uses OAuth 2.0 with Infor ION for cloud deployments or token-based authentication for on-premise installations. Each API call operates within a session context that determines the user, company, site, and security profile. Properly managing session lifecycle—creation, reuse, and cleanup—is critical for both performance and license compliance.

  • Use OAuth 2.0 client credentials flow for service-to-service integrations, not user impersonation
  • Reuse API sessions across related calls to avoid the overhead of session creation per request
  • Implement session cleanup in your error handling to prevent orphaned sessions consuming licenses
  • Configure rate limiting on the IDO Web Services to protect the application server from API overload

IDO Endpoint Patterns and Payload Design

IDO REST endpoints follow a consistent pattern: specify the IDO name, the operation (LoadCollection, UpdateCollection, InvokeMethod), and the payload. LoadCollection supports filtering, sorting, and property selection. UpdateCollection handles create, update, and delete operations within a single transactional call. InvokeMethod executes IDO business methods. Design API payloads to minimize data transfer by specifying only the properties needed and using server-side filtering.

  • Specify a property list in LoadCollection calls to return only required columns, reducing payload size
  • Use filter expressions to push query logic to the server rather than retrieving and filtering client-side
  • Batch related updates in a single UpdateCollection call to maintain transactional integrity
  • Call InvokeMethod for business operations instead of direct data manipulation to enforce business rules

Error Handling and Integration Resilience

Production API integrations must handle failures gracefully. SyteLine APIs return standard HTTP status codes with detailed error messages in the response body. Implement retry logic with exponential backoff for transient failures (503, timeout). Log all API interactions with timestamps, payloads, and responses for troubleshooting. Build idempotency into your integration design so that retried operations do not create duplicate transactions.

  • Implement exponential backoff retry for 503 (service unavailable) and timeout responses
  • Log complete request and response payloads for troubleshooting failed integration calls
  • Design idempotent operations using external reference numbers to prevent duplicate transactions
  • Build circuit breaker patterns that stop calling a failing API and alert operations teams promptly

Building SyteLine integrations? Our API specialists design scalable, reliable integration architectures.