@voyager-0x/agent-mcp
Version:
Voyager MCP Agent - A powerful Model Context Protocol agent
111 lines (110 loc) • 4.91 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.createWebMcpModule = createWebMcpModule;
exports.createMcpServerModule = createMcpServerModule;
const inMemory_js_1 = require("@modelcontextprotocol/sdk/inMemory.js");
const index_js_1 = require("@modelcontextprotocol/sdk/client/index.js");
const mcp_js_1 = require("@modelcontextprotocol/sdk/server/mcp.js");
function createWebMcpModule({ title }, callback) {
const version = "unset";
const [clientTransport, serverTransport] = inMemory_js_1.InMemoryTransport.createLinkedPair();
const client = new index_js_1.Client({
name: title,
version,
});
client.connect(clientTransport);
const mcpServer = new mcp_js_1.McpServer({
name: title,
version,
});
callback(mcpServer);
mcpServer.connect(serverTransport);
return client;
}
async function createMcpServerModule(config) {
const { title, serverUrl } = config;
// 添加重试逻辑
const maxRetries = 3;
let lastError;
for (let attempt = 1; attempt <= maxRetries; attempt++) {
try {
console.log(`正在连接到MCP服务器 (尝试 ${attempt}/${maxRetries}): ${serverUrl}`);
// 创建MCP客户端连接到外部服务器
const client = new index_js_1.Client({
name: title,
version: "1.0.0",
}, {
capabilities: {
tools: {},
resources: {},
},
});
// 根据URL协议选择连接方式
let transport;
if (serverUrl.startsWith("ws://") || serverUrl.startsWith("wss://")) {
// WebSocket连接
const { WebSocketClientTransport } = await Promise.resolve().then(() => __importStar(require("@modelcontextprotocol/sdk/client/websocket.js")));
transport = new WebSocketClientTransport(new URL(serverUrl));
}
else if (serverUrl.startsWith("http://") ||
serverUrl.startsWith("https://")) {
// StreamableHTTP连接 - 使用默认配置，SDK 自动处理 Session ID
const { StreamableHTTPClientTransport } = await Promise.resolve().then(() => __importStar(require("@modelcontextprotocol/sdk/client/streamableHttp.js")));
// 使用默认配置，让 SDK 自动处理所有细节
transport = new StreamableHTTPClientTransport(new URL(serverUrl));
}
else {
throw new Error(`不支持的协议: ${serverUrl}，支持 ws://, wss://, http://, https://`);
}
// 连接到服务器 - Session ID 会在此过程中自动处理
await client.connect(transport);
console.log(`MCP 客户端 "${title}" 已成功连接到: ${serverUrl}`);
return client;
}
catch (error) {
lastError = error;
console.warn(`连接尝试 ${attempt} 失败:`, error?.message || error);
if (attempt < maxRetries) {
// 等待一段时间后重试
const delay = attempt * 1000; // 递增延迟
console.log(`等待 ${delay}ms 后重试...`);
await new Promise((resolve) => setTimeout(resolve, delay));
}
}
}
console.error("创建MCP服务器连接失败 (所有重试都失败):", lastError);
throw new Error(`连接到MCP服务器失败: ${lastError?.message || lastError}`);
}