zabbix-graphql-api/docs/howtos/README.md
Andreas Hilbig 97a0f70fd6 feat(query-optimization): implement GraphQL query optimization and enhance regression suite
- **Optimization**: Implemented automatic Zabbix parameter optimization by analyzing GraphQL selection sets.

- **ZabbixRequest**: Added optimizeZabbixParams with support for skippable parameters and implied field dependencies (e.g., state -> items).

- **Resolvers**: Updated allHosts, allDevices, allHostGroups, and templates to pass requested fields to data sources.

- **Data Sources**: Optimized ZabbixQueryHostsGenericRequest and ZabbixQueryTemplatesRequest to skip unnecessary Zabbix API calls.

- **Regression Tests**: Enhanced RegressionTestExecutor with new tests for optimization (REG-OPT, REG-OPT-NEG), state retrieval (REG-STATE), dependent items (REG-DEP), and empty results (REG-EMPTY).

- **Documentation**: Created query_optimization.md How-To guide and updated roadmap.md, README.md, and tests.md.

- **Bug Fixes**: Fixed deviceType tag assignment during host import and corrected ZabbixCreateHostRequest to support tags.
2026-02-02 06:23:35 +01:00

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# How-To Guides
This directory contains detailed guides on how to use and extend the Zabbix GraphQL API.
## Available Guides
### 🍳 [Cookbook](./cookbook.md)
Practical, step-by-step recipes for common tasks, designed for both humans and AI-based test generation.
### ⚡ [Query Optimization](./query_optimization.md)
Learn how the API optimizes Zabbix requests by reducing output fields and skipping unnecessary parameters based on the GraphQL query.
### 📊 [Schema and Schema Extension](./schema.md)
Learn about the GraphQL schema structure, how Zabbix entities map to GraphQL types, and how to use the dynamic schema extension system.
### 🗂️ [Hierarchical Data Mapping](./hierarchical_data_mapping.md)
Understand how the API automatically maps flat Zabbix item keys into nested GraphQL objects using hierarchical resolvers and type hinting.
### 🔐 [Roles and Permissions Extension](./permissions.md)
Discover how the permission system works, how to define permission levels using Zabbix template groups, and how to query user permissions.
### 🛠️ [Technical Maintenance](./maintenance.md)
Guide on code generation (GraphQL Codegen), running Jest tests, and local Docker builds.
### 🧪 [Test Specification](../tests.md)
Detailed list of test cases, categories (Unit, Integration, E2E), and coverage checklist.
### 🤖 [MCP & Agent Integration](./mcp.md)
Discover how to integrate with the Model Context Protocol (MCP) to enable LLMs and autonomous agents to interact with Zabbix efficiently.
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## 🔍 Additional Resources
- **[Sample Queries](../queries/README.md)**: Categorized list of practical GraphQL operation examples.
- **[Main README](../../README.md)**: Technical reference, configuration, and environment setup.