Feishu/Lark OpenAPI MCP

import { Request, Response } from 'express'; import { McpServerOptions, mcpServerOptionSchema } from '../shared'; export enum JSONRPCErrorCodes { PARSE_ERROR = -32700, INVALID_REQUEST = -32600, METHOD_NOT_FOUND = -32601, INVALID_PARAMS = -32602, INTERNAL_ERROR = -32603, } export function parseMCPServerOptionsFromRequest(req: Request): { data: McpServerOptions; success: boolean; message?: string; } { const result = mcpServerOptionSchema.safeParse(req.query || {}); if (!result.success) { return { data: {}, success: false, message: result.error.message }; } return { data: result.data as McpServerOptions, success: true }; } export function sendJsonRpcError( res: Response, error: Error, httpCode = 500, code = JSONRPCErrorCodes.INTERNAL_ERROR, id: number | null = null, ) { console.error(error); if (!res.headersSent) { res.status(httpCode).json({ jsonrpc: '2.0', error: { code, message: error.message }, id }); } } export function sendResponseError(res: Response, error: Error, httpCode = 500): void { console.error(error); if (!res.headersSent) { res.status(httpCode).send(error.message); } }