InvoiceExpress MCP

import { config as dotenvConfig } from 'dotenv'; import { z } from 'zod'; dotenvConfig(); const configSchema = z.object({ invoiceExpress: z.object({ apiKey: z.string().min(1, 'API key is required'), accountName: z.string().min(1, 'Account name is required'), }), server: z.object({ name: z.string().default('mcp-invoice-express'), version: z.string().default('1.0.0'), }), environment: z.enum(['development', 'production', 'test']).default('development'), logging: z.object({ level: z.enum(['error', 'warn', 'info', 'debug']).default('info'), format: z.enum(['json', 'pretty']).default('json'), }), cache: z.object({ ttl: z.number().default(300), checkPeriod: z.number().default(60), }), rateLimit: z.object({ maxRequests: z.number().default(60), windowMs: z.number().default(60000), }), }); export type Config = z.infer<typeof configSchema>; export function loadConfig(): Config { const rawConfig = { invoiceExpress: { apiKey: process.env['INVOICE_EXPRESS_API_KEY'] || '', accountName: process.env['INVOICE_EXPRESS_ACCOUNT_NAME'] || '', }, server: { name: process.env['MCP_SERVER_NAME'] || undefined, version: process.env['MCP_SERVER_VERSION'] || undefined, }, environment: process.env['NODE_ENV'] || undefined, logging: { level: process.env['LOG_LEVEL'] || undefined, format: process.env['LOG_FORMAT'] || undefined, }, cache: { ttl: process.env['CACHE_TTL'] ? parseInt(process.env['CACHE_TTL'], 10) : undefined, checkPeriod: process.env['CACHE_CHECK_PERIOD'] ? parseInt(process.env['CACHE_CHECK_PERIOD'], 10) : undefined, }, rateLimit: { maxRequests: process.env['RATE_LIMIT_MAX_REQUESTS'] ? parseInt(process.env['RATE_LIMIT_MAX_REQUESTS'], 10) : undefined, windowMs: process.env['RATE_LIMIT_WINDOW_MS'] ? parseInt(process.env['RATE_LIMIT_WINDOW_MS'], 10) : undefined, }, }; const result = configSchema.safeParse(rawConfig); if (!result.success) { const errors = result.error.errors.map((err) => `${err.path.join('.')}: ${err.message}`); throw new Error(`Configuration validation failed:\n${errors.join('\n')}`); } return result.data; }