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Package ZLLM_CLIENT

AI Generated documentation.

Overview

This ABAP package provides a secure, extensible framework for integrating Large Language Models (LLMs) into SAP systems. It enables standardized interaction with multiple AI providers (OpenAI, Azure, Anthropic, etc.) through encrypted communication, structured request/response handling, and centralized configuration management.

Core Capabilities

  • Multi-Provider Support: Implements dedicated clients for major LLM APIs (OpenAI, Azure, Anthropic, OpenRouter) with provider-specific authentication and payload formatting
  • Security Framework: Integrates certificate-based encryption, authorization checks, and secure credential storage using SAP SSF/STRUST
  • Structured AI Interactions: Manages complex chat workflows with tool integration (calculator, echo), JSON schema validation, and template-based content generation
  • Operational Control: Configurable logging, usage statistics, and system-wide activation controls via central configuration tables
  • Extensible Architecture: Uses BAdIs and factory patterns for dynamic implementation swapping, enabling custom tools, encryption, and authorization scenarios

Technical Foundation

  • Abstract base classes for HTTP communication, response parsing, and client lifecycle management
  • JSON schema generation from ABAP structures with type validation
  • Lightweight template engine supporting conditional logic and loops
  • Pluggable components for encryption, logging, and statistics via standardized interfaces
  • Central exception handling with domain-specific error classes (HTTP, auth, validation)

Integration Features

  • CRUD operations for provider configurations with ALV-based maintenance
  • Support for streaming responses and asynchronous processing
  • Tool execution framework enabling LLMs to trigger ABAP logic
  • Dynamic client instantiation with model/provider relationship validation