Function connect

src/examples/client/elicitationUrlExample.ts:502–566

(url?: string)

}

async function connect(url?: string): Promise<void> {
    if (client) {
        console.log('Already connected. Disconnect first.');
        return;
    }

    if (url) {
        serverUrl = url;
    }

    console.log(`🔗 Attempting to connect to ${serverUrl}...`);

    // Create a new client with elicitation capability
    console.log('👤 Creating MCP client...');
    client = new Client(
        {
            name: 'example-client',
            version: '1.0.0'
        },
        {
            capabilities: {
                elicitation: {
                    // Only URL elicitation is supported in this demo
                    // (see server/elicitationExample.ts for a demo of form mode elicitation)
                    url: {}
                }
            }
        }
    );
    console.log('👤 Client created');

    // Set up elicitation request handler with proper validation
    client.setRequestHandler(ElicitRequestSchema, elicitationRequestHandler);

    // Set up notification handler for elicitation completion
    client.setNotificationHandler(ElicitationCompleteNotificationSchema, notification => {
        const { elicitationId } = notification.params;
        const pending = pendingURLElicitations.get(elicitationId);
        if (pending) {
            clearTimeout(pending.timeout);
            pendingURLElicitations.delete(elicitationId);
            console.log(`\x1b[32m✅ Elicitation ${elicitationId} completed!\x1b[0m`);
            pending.resolve();
        } else {
            // Shouldn't happen - discard it!
            console.warn(`Received completion notification for unknown elicitation: ${elicitationId}`);
        }
    });

    try {
        console.log('🔐 Starting OAuth flow...');
        await attemptConnection(oauthProvider!);
        console.log('Connected to MCP server');

        // Set up error handler after connection is established so we don't double log errors
        client.onerror = error => {
            console.error('\x1b[31mClient error:', error, '\x1b[0m');
        };