MongoDB MCP Server

import { InMemoryTransport } from "./inMemoryTransport.js"; import { TransportRunnerBase, type TransportRunnerConfig } from "./base.js"; import { type Server } from "../server.js"; export type DryRunModeTestHelpers = { logger: { log(this: void, message: string): void; error(this: void, message: string): void; }; }; type DryRunModeRunnerConfig = TransportRunnerConfig & DryRunModeTestHelpers; export class DryRunModeRunner extends TransportRunnerBase { private server: Server | undefined; private consoleLogger: DryRunModeTestHelpers["logger"]; constructor({ logger, ...transportRunnerConfig }: DryRunModeRunnerConfig) { super(transportRunnerConfig); this.consoleLogger = logger; } override async start(): Promise<void> { this.server = await this.setupServer(); const transport = new InMemoryTransport(); await this.server.connect(transport); this.dumpConfig(); this.dumpTools(); } override async closeTransport(): Promise<void> { await this.server?.close(); } private dumpConfig(): void { this.consoleLogger.log("Configuration:"); this.consoleLogger.log(JSON.stringify(this.userConfig, null, 2)); } private dumpTools(): void { const tools = this.server?.tools .filter((tool) => tool.isEnabled()) .map((tool) => ({ name: tool.name, category: tool.category, })) ?? []; this.consoleLogger.log("Enabled tools:"); this.consoleLogger.log(JSON.stringify(tools, null, 2)); } }