zabbix-graphql-api/docs/howtos/maintenance.md
Andreas Hilbig ce340ccf2e feat: implement storeGroupValue and getGroupValue with unified locator
- API Refactoring: Extracted GroupValueLocator input type to unify parameters for storeGroupValue (mutation) and getGroupValue (query).

- Data Retrieval: Implemented getGroupValue query to allow direct retrieval of JSON values stored in host groups via Zabbix Trapper items.

- Enhanced Logic: Added ZabbixGetGroupValueRequest to fetch latest history values for group-associated items.

- Improved Verification: Updated the regression suite (REG-STORE) to include a full 'Store-Update-Retrieve' verification cycle.

- Documentation:

    - Updated docs/howtos/cookbook.md recipes to use the new locator structure and getGroupValue for verification.

    - Updated sample query files (docs/queries/) with corrected variables and verification queries.

- Tests:

    - Added unit and integration tests for getGroupValue.

    - Updated existing tests to match the refactored storeGroupValue schema.

- Verification: Verified 100% pass rate for all 16 regression steps and all unit/integration tests.
2026-02-20 12:26:39 +01:00

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Markdown

# Technical Maintenance Guide
This guide covers the technical aspects of maintaining and developing the Zabbix GraphQL API.
## 🛠️ Development & Maintenance Tasks
### Code Generation
The project uses [GraphQL Codegen](https://the-guild.dev/graphql/codegen) to generate TypeScript types from the GraphQL schema. This ensures type safety and consistency between the schema and the implementation.
- **Configuration**: `codegen.ts`
- **Generated Output**: `src/schema/generated/graphql.ts`
#### How to Regenerate Types
Whenever you modify any `.graphql` files in the `schema/` directory, you must regenerate the TypeScript types.
For a one-off update (e.g. in a script or before commit):
```bash
npx graphql-codegen --config codegen.ts
```
If you are a developer and want to watch for schema changes continuously:
```bash
npm run codegen
```
### Testing
We use [Jest](https://jestjs.io/) for unit and integration testing.
- **Test Directory**: `src/test/`
- **Execution**:
```bash
npm run test
```
#### Local Development Setup
For running integration tests against a real Zabbix instance, it is recommended to use the [Local Development Environment](./local_development.md). This setup allows you to test the API against specific Zabbix versions (e.g. 6.4, 7.0) in an isolated way.
#### Adding New Tests
- **Location**: Place new test files in `src/test/` with the `.test.ts` extension.
- **Coverage**: Ensure you cover both successful operations and error scenarios.
- **Test Specification**: Every new test must be documented in the [Test Specification](../testcases/tests.md).
- **Best Practice**: If you find a bug, first create a reproduction test in `src/test/` to verify the fix.
## 🔄 Updating Dependencies
To keep the project secure and up-to-date:
1. Check for updates: `npm outdated`
2. Update packages: `npm update`
3. Verify with tests: `npm run test`
## 🐳 Docker Image Maintenance
The `Dockerfile` uses a multi-stage build to keep the production image small and secure.
- **Base Image**: Node 24 (LTS)
- **Build Argument**: `API_VERSION` (used to embed the version into the image)
To build a fresh image locally:
```bash
docker build -t zabbix-graphql-api --build-arg API_VERSION=$(git describe --tags --always) .
```
---
**Related Reference**: [Project Configuration Reference](../../README.md#configuration)
**Related Cookbook**: [Extending the Schema](./cookbook.md#recipe-extending-schema-with-a-new-device-type)