leshan-mcp-server/src/config/env.js

A standards-compliant MCP server for Leshan LwM2M, exposing Leshan as Model Context Protocol tools.

import { z } from "zod";

const envSchema = z.object({
  LESHAN_URL: z.string().url().default("http://localhost:8084"),
  LESHAN_TIMEOUT: z.coerce.number().positive().default(30000),
  LESHAN_RETRIES: z.coerce.number().min(1).max(10).default(3),
  LESHAN_RETRY_DELAY: z.coerce.number().positive().default(1000),
  MAX_CONCURRENT_REQUESTS: z.coerce.number().positive().default(10),
  LOG_LEVEL: z.enum(["debug", "info", "warn", "error"]).default("info"),
  ENABLE_FILE_LOGGING: z.coerce.boolean().default(true),
  NODE_ENV: z.enum(["development", "production", "test"]).default("development"),
});

export function validateEnvironment() {
  try {
    const env = envSchema.parse(process.env);
    return env;
  } catch (error) {
    console.error("❌ Invalid environment configuration:");
    console.error(error.errors.map(e => `  ${e.path.join('.')}: ${e.message}`).join('\n'));
    process.exit(1);
  }
}

export const env = validateEnvironment();