/**
* Configuration for the MCP server
*/
export interface ServerConfig {
/** Google Maps API key */
apiKey: string;
/** Default timeout for requests (ms) */
timeout?: number;
/** Rate limiting (requests per second) */
rateLimit?: number;
/** Default language for responses */
defaultLanguage?: string;
/** Default region for responses */
defaultRegion?: string | undefined;
}
/**
* Load and validate server configuration from environment variables
*/
export function loadConfig(): ServerConfig {
const apiKey = process.env.GOOGLE_MAPS_API_KEY;
if (!apiKey) {
throw new Error(
"GOOGLE_MAPS_API_KEY environment variable is required. " +
"Please set it to your Google Maps API key.",
);
}
const config: ServerConfig = {
apiKey,
timeout: process.env.TIMEOUT ? parseInt(process.env.TIMEOUT, 10) : 5000,
rateLimit: process.env.RATE_LIMIT
? parseInt(process.env.RATE_LIMIT, 10)
: 10,
defaultLanguage: process.env.DEFAULT_LANGUAGE || "en",
defaultRegion: process.env.DEFAULT_REGION,
};
// Validate configuration
if (config.timeout && (config.timeout < 1000 || config.timeout > 30000)) {
throw new Error("TIMEOUT must be between 1000 and 30000 milliseconds");
}
if (config.rateLimit && (config.rateLimit < 1 || config.rateLimit > 100)) {
throw new Error("RATE_LIMIT must be between 1 and 100 requests per second");
}
return config;
}
/**
* Default configuration values
*/
export const DEFAULT_CONFIG: Partial<ServerConfig> = {
timeout: 5000,
rateLimit: 10,
defaultLanguage: "en",
};
