80 lines
2.5 KiB
JavaScript
80 lines
2.5 KiB
JavaScript
#!/usr/bin/env node
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/**
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* MCP REST Client for chrome-devtools
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* Server Version: 0.10.2
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* Generated: 2025-11-23
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*
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* Shared MCP REST client for tool scripts.
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*/
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import axios from 'axios';
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// MCP2REST endpoint (configurable via environment variable)
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const MCP_REST_URL = process.env.MCP_REST_URL || 'http://localhost:28888';
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/**
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* Call an MCP tool via mcp2rest REST API.
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*
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* @param {string} server - Server name (e.g., "chrome-devtools")
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* @param {string} tool - Tool name (e.g., "click")
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* @param {object} args - Tool arguments as object
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* @returns {Promise<string>} Tool result as formatted string
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*/
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export async function callTool(server, tool, args) {
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const url = `${MCP_REST_URL}/call`;
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const payload = {
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server,
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tool,
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arguments: args || {},
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};
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try {
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const response = await axios.post(url, payload, {
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headers: { 'Content-Type': 'application/json' },
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timeout: 30000,
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});
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const data = response.data;
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if (data.success) {
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// Extract and format result
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const result = data.result || {};
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const content = result.content || [];
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// Format output nicely
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const outputParts = [];
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for (const item of content) {
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if (item.type === 'text') {
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outputParts.push(item.text || '');
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} else if (item.type === 'image') {
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// For images, just note their presence
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const dataLen = (item.data || '').length;
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outputParts.push(`[Image data: ${dataLen} bytes]`);
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} else if (item.type === 'resource') {
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outputParts.push(JSON.stringify(item.resource || {}, null, 2));
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}
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}
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return outputParts.length > 0 ? outputParts.join('\n') : JSON.stringify(result, null, 2);
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} else {
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const error = data.error || {};
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const errorMsg = error.message || 'Unknown error';
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const errorCode = error.code || 'UNKNOWN';
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console.error(`Error [${errorCode}]: ${errorMsg}`);
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process.exit(1);
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}
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} catch (error) {
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if (error.code === 'ECONNREFUSED' || error.code === 'ENOTFOUND') {
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console.error(`Error: Cannot connect to mcp2rest at ${MCP_REST_URL}`);
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console.error('Make sure mcp2rest is running.');
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} else if (error.code === 'ETIMEDOUT' || error.code === 'ECONNABORTED') {
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console.error('Error: Request timed out after 30 seconds');
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} else if (error.response) {
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console.error(`Error: HTTP ${error.response.status} - ${error.response.data}`);
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} else {
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console.error(`Error: ${error.message}`);
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}
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process.exit(1);
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}
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}
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