This is a hub article that collates the current list of available articles for the Gen 8.6 support of REST web services i.e. consuming REST Web Service APIs (Call REST) feature.
Release: 8.6 Complete + later PTFs required for this feature.
Gen 8.6 Consuming REST APIs: FAQ
Gen 8.6 Consuming REST APIs: Getting Started
Gen 8.6 Consuming REST APIs: Security
Gen 8.6 Consuming REST APIs: Authentication
Modify/Override 'Call REST' URL in Gen Java Applications
Securing REST APIs in Gen with OAuth2
Creating an OpenAPI Specification for Gen 'Call REST'
Gen 8.6 Consuming REST APIs: Batch and Compatibility
Gen™ 8.6 > Release Notes > New Features
NOTE: The Call REST feature was originally added via post Gen 8.6 Complete PTFs. For the distributed side those PTFs have since been superseded by 8.6.3 Consolidation PTFs: Gen 8.6 Solutions & Patches