"""
Configuration Module for EMQX MCP Server
This module loads configuration parameters from environment variables,
specifically for connecting to the EMQX Cloud or self-hosted EMQX API.
"""
import os
from dataclasses import dataclass
from dotenv import load_dotenv
# Load environment variables from .env file if it exists
load_dotenv()
@dataclass(frozen=True)
class EMQXConfig:
"""EMQX API configuration."""
api_url: str
api_key: str
api_secret: str
def validate(self) -> None:
"""Validate that all required configuration is present.
Raises:
ValueError: If any required configuration is missing.
"""
missing = []
if not self.api_url:
missing.append("EMQX_API_URL")
if not self.api_key:
missing.append("EMQX_API_KEY")
if not self.api_secret:
missing.append("EMQX_API_SECRET")
if missing:
raise ValueError(
f"Missing required environment variables: {', '.join(missing)}. "
"Please set them in your environment or .env file."
)
def load_config() -> EMQXConfig:
"""Load configuration from environment variables."""
return EMQXConfig(
api_url=os.getenv("EMQX_API_URL", ""),
api_key=os.getenv("EMQX_API_KEY", ""),
api_secret=os.getenv("EMQX_API_SECRET", ""),
)
# Module-level backward-compatible aliases
_config = load_config()
EMQX_API_URL = _config.api_url
EMQX_API_KEY = _config.api_key
EMQX_API_SECRET = _config.api_secret
def validate_config() -> None:
"""Validate the module-level configuration."""
_config.validate()
