import axios from 'axios';
import { getAuthenticatedConfig } from './utils.js';
const N8N_BASE_URL = process.env.N8N_BASE_URL || 'http://localhost:5678';
export async function listNodes(headers = {}, sessionId = null, clientCredentials = new Map()) {
try {
console.log(`[DEBUG] Fetching available node types from n8n`);
const config = getAuthenticatedConfig(headers, sessionId, clientCredentials);
const response = await axios.get(`${N8N_BASE_URL}/types/nodes.json`, config);
console.log(`[DEBUG] List nodes response status:`, response.status);
const nodes = response.data;
const nodeCount = nodes.length;
// Create a summary of node types
const nodeTypes = {};
const nodesByGroup = {};
nodes.forEach(node => {
const group = node.group?.[0] || 'unknown';
if (!nodesByGroup[group]) {
nodesByGroup[group] = [];
}
nodesByGroup[group].push({
name: node.name,
displayName: node.displayName,
description: node.description,
version: node.version,
usableAsTool: node.usableAsTool || false
});
if (!nodeTypes[group]) {
nodeTypes[group] = 0;
}
nodeTypes[group]++;
});
console.log(`[DEBUG] Successfully retrieved ${nodeCount} node types`);
return {
success: true,
totalNodes: nodeCount,
nodesByGroup: nodesByGroup,
summary: nodeTypes,
message: `Retrieved ${nodeCount} available node types grouped by category`
};
} catch (error) {
console.error(`[ERROR] Failed to list node types:`, error.response?.data || error.message);
return {
success: false,
error: `Failed to list node types: ${error.response?.data?.message || error.message}`,
status: error.response?.status
};
}
}
