JSON Editor MCP

#!/usr/bin/env node const { spawn } = require('child_process'); const path = require('path'); // Start the MCP server const server = spawn('node', [path.join(__dirname, 'dist', 'index.js')], { stdio: ['pipe', 'pipe', 'pipe'] }); // Test data with duplicate keys const testData = { "common": { "someKey1": "someValue1", "subKey1": { "subKey11": "subValue11", "subKey12": "subValue12" } }, "common": { "someKey1": "someValue2", "someKey2": "someValue3", "subKey1": { "subKey11": "subValue11", "subKey12": "subValue12", "subKey13": "subValue13" } } }; // Write test data to file const fs = require('fs'); fs.writeFileSync('test-input.json', JSON.stringify(testData, null, 2)); console.log('Input data:'); console.log(JSON.stringify(testData, null, 2)); // Send merge request const mergeRequest = { jsonrpc: "2.0", id: 1, method: "tools/call", params: { name: "merge_duplicate_keys", arguments: { filePath: "test-input.json" } } }; server.stdin.write(JSON.stringify(mergeRequest) + '\n'); // Read response let output = ''; server.stdout.on('data', (data) => { output += data.toString(); try { const response = JSON.parse(output.trim()); console.log('\nMCP Response:'); console.log(JSON.stringify(response, null, 2)); // Read the merged file const mergedData = JSON.parse(fs.readFileSync('test-input.json', 'utf-8')); console.log('\nMerged result:'); console.log(JSON.stringify(mergedData, null, 2)); server.kill(); } catch (e) { // Not complete JSON yet, continue reading } }); server.stderr.on('data', (data) => { console.error('Server error:', data.toString()); }); server.on('close', (code) => { console.log(`Server exited with code ${code}`); });