80 lines
2.3 KiB
Python
80 lines
2.3 KiB
Python
"""
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Configuration management for the MCP server.
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Handles environment variables and provides validated configuration.
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"""
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import os
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from dataclasses import dataclass
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from typing import Optional
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from urllib.parse import urlparse
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@dataclass(frozen=True)
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class MCPConfig:
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"""Immutable configuration for the MCP server."""
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base_url: str
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api_key: Optional[str]
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timeout: float
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max_retries: int
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def __post_init__(self) -> None:
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"""Validate configuration after initialization."""
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# Validate URL format
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parsed = urlparse(self.base_url)
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if not parsed.scheme or not parsed.netloc:
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raise ValueError(f"Invalid NOTEDISCOVERY_URL: {self.base_url}")
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if parsed.scheme not in ("http", "https"):
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raise ValueError(f"URL must use http or https: {self.base_url}")
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@property
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def headers(self) -> dict[str, str]:
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"""Get HTTP headers for API requests."""
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headers = {
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"Content-Type": "application/json",
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"Accept": "application/json",
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"User-Agent": "NoteDiscovery-MCP/1.0",
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}
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if self.api_key:
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headers["X-API-Key"] = self.api_key
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return headers
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def load_config() -> MCPConfig:
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"""
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Load configuration from environment variables.
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Environment Variables:
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NOTEDISCOVERY_URL: Server URL (default: http://localhost:8000)
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NOTEDISCOVERY_API_KEY: API key for authentication (optional)
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NOTEDISCOVERY_TIMEOUT: Request timeout in seconds (default: 30)
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NOTEDISCOVERY_MAX_RETRIES: Max retry attempts (default: 3)
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Returns:
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MCPConfig: Validated configuration object
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Raises:
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ValueError: If configuration is invalid
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"""
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base_url = os.getenv("NOTEDISCOVERY_URL", "http://localhost:8000").rstrip("/")
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api_key = os.getenv("NOTEDISCOVERY_API_KEY", "").strip() or None
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try:
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timeout = float(os.getenv("NOTEDISCOVERY_TIMEOUT", "30"))
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except ValueError:
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timeout = 30.0
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try:
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max_retries = int(os.getenv("NOTEDISCOVERY_MAX_RETRIES", "3"))
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except ValueError:
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max_retries = 3
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return MCPConfig(
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base_url=base_url,
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api_key=api_key,
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timeout=timeout,
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max_retries=max_retries,
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)
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