health_check
Verify system health and EPA API connectivity to ensure reliable access to environmental data for analysis.
Instructions
System health and API connectivity check.
Returns: Health status information including EPA API connectivity
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- server.py:54-83 (handler)The MCP tool handler for 'health_check', decorated with @mcp.tool() for automatic registration. It checks server and EPA API health by calling FRSClient.health_check().
@mcp.tool() async def health_check() -> Dict[str, Any]: """System health and API connectivity check. Returns: Health status information including EPA API connectivity """ try: from src.client import FRSClient # Test EPA API connectivity async with FRSClient() as client: health_status = await client.health_check() return { "status": "healthy", "version": "1.0.0", "server_name": "epa-envirofacts", "epa_api": health_status, "timestamp": structlog.get_logger().info("Health check completed") } except Exception as e: return { "status": "unhealthy", "version": "1.0.0", "server_name": "epa-envirofacts", "error": str(e), "timestamp": structlog.get_logger().error(f"Health check failed: {e}") } - src/client/base.py:208-234 (helper)Helper method in BaseEPAClient (FRSClient base) that performs the actual EPA API health check via a test query, used by the tool handler.
async def health_check(self) -> Dict[str, Any]: """Check EPA API connectivity. Returns: Health status information """ try: # Simple test query to FRS facility_site table test_url = self._build_query_url('frs.frs_facility_site', limit=1) await self._execute_query(test_url) return { "status": "healthy", "api_reachable": True, "base_url": self.base_url, "timeout": self.timeout } except Exception as e: logger.error(f"EPA API health check failed: {e}") return { "status": "unhealthy", "api_reachable": False, "error": str(e), "base_url": self.base_url, "timeout": self.timeout }