n8n-nodes-lightrag
Version:
Custom node for querying LightRAG inside n8n workflows or AI Chatflows
152 lines (151 loc) • 6.12 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.LightRagQuery = void 0;
class LightRagQuery {
constructor() {
this.description = {
displayName: 'LightRAG Query',
name: 'lightRagQuery',
icon: 'file:lightRag.svg',
group: ['transform'],
version: 1,
description: 'Query documents via LightRAG',
defaults: {
name: 'LightRAG Query',
},
inputs: [
{ type: "main" /* NodeConnectionType.Main */, displayName: 'Input' },
],
outputs: [
{ type: "main" /* NodeConnectionType.Main */, displayName: 'Output' },
],
credentials: [
{ name: 'lightRagApi', required: true },
],
properties: [
{
displayName: 'Query',
name: 'query',
type: 'string',
default: '',
description: 'The question to ask the LightRAG API',
},
{
displayName: 'Mode',
name: 'mode',
type: 'options',
options: [
{ name: 'Mix', value: 'mix' },
{ name: 'Naive', value: 'naive' },
{ name: 'Global', value: 'global' },
{ name: 'Hybrid', value: 'hybrid' },
{ name: 'Local', value: 'local' },
{ name: 'Bypass', value: 'bypass' },
],
default: 'mix',
description: 'Select query mode',
},
{
displayName: 'Response Type',
name: 'response_type',
type: 'options',
options: [
{ name: 'Multiple Paragraphs', value: 'Multiple Paragraphs' },
{ name: 'Single Paragraphs', value: 'Single Paragraphs' },
{ name: 'Bullet Points', value: 'Bullet Points' },
],
default: 'Multiple Paragraphs',
description: 'Select response type',
},
{
displayName: 'Options',
name: 'options',
type: 'collection',
placeholder: 'Add Option',
default: {},
options: [
{
displayName: 'Top K',
name: 'top_k',
type: 'number',
default: 40,
description: 'Number of top nodes to consider',
routing: { send: { type: 'body', property: 'top_k' } },
},
{
displayName: 'Chunk Top K',
name: 'chunk_top_k',
type: 'number',
default: 10,
routing: { send: { type: 'body', property: 'chunk_top_k' } },
},
{
displayName: 'Max Entity Tokens',
name: 'max_entity_tokens',
type: 'number',
default: 10000,
routing: { send: { type: 'body', property: 'max_entity_tokens' } },
},
{
displayName: 'Max Relation Tokens',
name: 'max_relation_tokens',
type: 'number',
default: 10000,
routing: { send: { type: 'body', property: 'max_relation_tokens' } },
},
{
displayName: 'Max Total Tokens',
name: 'max_total_tokens',
type: 'number',
default: 32000,
routing: { send: { type: 'body', property: 'max_total_tokens' } },
},
{
displayName: 'Enable Rerank',
name: 'enable_rerank',
type: 'boolean',
default: true,
routing: { send: { type: 'body', property: 'enable_rerank' } },
},
],
},
],
};
}
async execute() {
const credentials = (await this.getCredentials('lightRagApi'));
const query = this.getNodeParameter('query', 0);
const mode = this.getNodeParameter('mode', 0);
const response_type = this.getNodeParameter('response_type', 0);
const options = this.getNodeParameter('options', 0);
const body = {
query,
mode,
response_type,
only_need_context: false,
only_need_prompt: false,
stream: false,
history_turns: 0,
user_prompt: '',
conversation_history: [],
};
// Merge optional parameters into body
Object.assign(body, options);
const headers = {
'Content-Type': 'application/json',
};
let queryUrl = `${credentials.url}/query`;
if (credentials.apiKey && credentials.apiKey.trim() !== '') {
queryUrl += `?api_key_header_value=${encodeURIComponent(credentials.apiKey)}`;
}
const responseData = await this.helpers.request({
method: 'POST',
uri: queryUrl,
body,
headers,
json: true,
});
return [this.helpers.returnJsonArray(responseData)];
}
}
exports.LightRagQuery = LightRagQuery;