test-simple-workflow.js•4.54 kB
#!/usr/bin/env node
/**
* Test script to create a simple workflow and debug the 400 error
*/
const { spawn } = require('child_process');
class SimpleWorkflowTester {
constructor() {
this.serverProcess = null;
}
async startServer() {
console.log('🚀 Starting n8n MCP server...');
this.serverProcess = spawn('npx', ['.'], {
cwd: '/Users/yasinboelhouwer/n8n-workflow-builder',
env: {
...process.env,
N8N_HOST: 'https://n8n.yasin.nu/api/v1',
N8N_API_KEY: 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIyMmE2NzM0NC05ZWI1LTQ0NmMtODczNi1lNWYyOGE4MjY4NTIiLCJpc3MiOiJuOG4iLCJhdWQiOiJwdWJsaWMtYXBpIiwiaWF0IjoxNzUzMzQzODU5fQ.PhpEIzzSGROy9Kok26SXmj9RRH1K3ArahexaVbQ2-Ho'
},
stdio: ['pipe', 'pipe', 'pipe']
});
return new Promise((resolve, reject) => {
let output = '';
this.serverProcess.stderr.on('data', (data) => {
output += data.toString();
if (output.includes('N8N Workflow Builder MCP server running on stdio')) {
console.log('✅ Server started successfully');
resolve();
}
});
this.serverProcess.on('error', (error) => {
console.error('❌ Failed to start server:', error);
reject(error);
});
setTimeout(() => {
reject(new Error('Server startup timeout'));
}, 10000);
});
}
async sendMCPRequest(method, params = {}) {
return new Promise((resolve, reject) => {
const request = {
jsonrpc: '2.0',
id: Date.now(),
method: method,
params: params
};
let response = '';
let timeout;
const onData = (data) => {
response += data.toString();
try {
const parsed = JSON.parse(response);
clearTimeout(timeout);
this.serverProcess.stdout.removeListener('data', onData);
resolve(parsed);
} catch (e) {
// Continue collecting data
}
};
this.serverProcess.stdout.on('data', onData);
timeout = setTimeout(() => {
this.serverProcess.stdout.removeListener('data', onData);
reject(new Error(`Timeout waiting for response to ${method}`));
}, 10000);
this.serverProcess.stdin.write(JSON.stringify(request) + '\n');
});
}
getSimpleWorkflow() {
return {
name: "Simple Test Workflow",
nodes: [
{
id: "start-node",
name: "Start",
type: "n8n-nodes-base.start",
typeVersion: 1,
position: [240, 300],
parameters: {}
},
{
id: "schedule-trigger",
name: "Schedule Trigger",
type: "n8n-nodes-base.scheduleTrigger",
typeVersion: 1,
position: [240, 300],
parameters: {
interval: [
{
field: "unit",
value: "seconds"
},
{
field: "intervalValue",
value: 10
}
]
}
}
],
connections: {},
settings: {
saveExecutionProgress: true,
saveManualExecutions: true
}
};
}
async testWorkflow() {
try {
await this.startServer();
console.log('📋 Creating simple test workflow...\n');
const workflow = this.getSimpleWorkflow();
console.log('Workflow payload:', JSON.stringify(workflow, null, 2));
const response = await this.sendMCPRequest('tools/call', {
name: 'create_workflow',
arguments: { workflow }
});
console.log('Full response:', JSON.stringify(response, null, 2));
if (response.error) {
console.log('❌ Workflow creation failed:', response.error.message);
return false;
} else {
console.log('✅ Simple workflow created successfully!');
return true;
}
} catch (error) {
console.error('❌ Test error:', error.message);
return false;
} finally {
this.cleanup();
}
}
cleanup() {
if (this.serverProcess) {
console.log('\n🧹 Cleaning up server process...');
this.serverProcess.kill();
}
}
}
// Run the test
const tester = new SimpleWorkflowTester();
tester.testWorkflow().then(success => {
if (success) {
console.log('\n🎉 Simple workflow test passed!');
process.exit(0);
} else {
console.log('\n❌ Simple workflow test failed.');
process.exit(1);
}
}).catch(console.error);