App Store Connect MCP Server

import { McpError, ErrorCode } from "@modelcontextprotocol/sdk/types.js"; export function validateRequired(params, requiredFields) { const missingFields = requiredFields.filter(field => !params[field]); if (missingFields.length > 0) { throw new McpError(ErrorCode.InvalidParams, `Missing required parameters: ${missingFields.join(', ')}`); } } export function validateEnum(value, validValues, fieldName) { if (!value) return undefined; if (!validValues.includes(value)) { throw new McpError(ErrorCode.InvalidParams, `Invalid ${fieldName}: ${value}. Valid values are: ${validValues.join(', ')}`); } return value; } export function sanitizeLimit(limit, max = 200) { if (!limit) return 100; return Math.min(Math.max(1, Number(limit)), max); } export function buildFilterParams(filter = {}) { const params = {}; Object.entries(filter).forEach(([key, value]) => { if (value !== undefined && value !== null) { if (Array.isArray(value)) { params[`filter[${key}]`] = value.join(','); } else { params[`filter[${key}]`] = String(value); } } }); return params; } export function buildFieldParams(fields = {}) { const params = {}; Object.entries(fields).forEach(([key, value]) => { if (Array.isArray(value) && value.length > 0) { params[`fields[${key}]`] = value.join(','); } }); return params; }