128 lines
2.9 KiB
TypeScript
128 lines
2.9 KiB
TypeScript
import { Client } from "mcp-typescript/client/index.js";
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import { SSEClientTransport } from "mcp-typescript/client/sse.js";
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import { StdioClientTransport } from "mcp-typescript/client/stdio.js";
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import {
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ListResourcesResult,
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ReadResourceResult,
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ListResourcesResultSchema,
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ReadResourceResultSchema,
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ListPromptsResult,
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ListPromptsResultSchema,
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GetPromptResult,
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GetPromptResultSchema,
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ListToolsResult,
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ListToolsResultSchema,
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CallToolResult,
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CallToolResultSchema,
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GetPromptRequest,
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ReadResourceRequest,
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CallToolRequest,
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} from "mcp-typescript/types.js";
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export class McpClient {
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private client: Client;
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private transport?: SSEClientTransport | StdioClientTransport;
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constructor(name: string, version: string) {
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this.client = new Client({
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name,
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version,
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});
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}
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async connect(url: string | URL) {
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const urlObj = typeof url === "string" ? new URL(url) : url;
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if (urlObj.protocol === "http:" || urlObj.protocol === "https:") {
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this.transport = new SSEClientTransport();
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} else {
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throw new Error(`Unsupported protocol: ${urlObj.protocol}`);
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}
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await this.transport.connect(urlObj);
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await this.client.connect(this.transport);
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}
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async connectStdio(command: string, args: string[] = []) {
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this.transport = new StdioClientTransport();
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await this.transport.spawn({ command, args });
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await this.client.connect(this.transport);
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}
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async close() {
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await this.client.close();
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}
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// Resource Operations
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async listResources(): Promise<ListResourcesResult> {
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return await this.client.request(
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{
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method: "resources/list",
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},
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ListResourcesResultSchema,
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);
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}
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async readResource(
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params: ReadResourceRequest["params"],
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): Promise<ReadResourceResult> {
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return await this.client.request(
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{
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method: "resources/read",
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params,
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},
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ReadResourceResultSchema,
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);
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}
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// Prompt Operations
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async listPrompts(): Promise<ListPromptsResult> {
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return await this.client.request(
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{
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method: "prompts/list",
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},
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ListPromptsResultSchema,
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);
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}
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async getPrompt(
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params: GetPromptRequest["params"],
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): Promise<GetPromptResult> {
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return await this.client.request(
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{
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method: "prompts/get",
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params,
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},
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GetPromptResultSchema,
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);
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}
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// Tool Operations
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async listTools(): Promise<ListToolsResult> {
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return await this.client.request(
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{
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method: "tools/list",
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},
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ListToolsResultSchema,
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);
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}
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async callTool(params: CallToolRequest["params"]): Promise<CallToolResult> {
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return await this.client.request(
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{
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method: "tools/call",
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params,
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},
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CallToolResultSchema,
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);
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}
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getServerCapabilities() {
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return this.client.getServerCapabilities();
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}
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getServerVersion() {
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return this.client.getServerVersion();
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}
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}
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export default McpClient;
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