69 lines
2.0 KiB
TypeScript
69 lines
2.0 KiB
TypeScript
import { INode, INodeData, INodeParams } from '../../../src/Interface'
|
|
import { VectorStoreIndex } from 'llamaindex'
|
|
|
|
class QueryEngine_Tools implements INode {
|
|
label: string
|
|
name: string
|
|
version: number
|
|
description: string
|
|
type: string
|
|
icon: string
|
|
category: string
|
|
tags: string[]
|
|
baseClasses: string[]
|
|
inputs?: INodeParams[]
|
|
|
|
constructor() {
|
|
this.label = 'QueryEngine Tool'
|
|
this.name = 'queryEngineToolLlamaIndex'
|
|
this.version = 1.0
|
|
this.type = 'QueryEngineTool'
|
|
this.icon = 'queryEngineTool.svg'
|
|
this.category = 'Tools'
|
|
this.tags = ['LlamaIndex']
|
|
this.description = 'Tool used to invoke query engine'
|
|
this.baseClasses = [this.type]
|
|
this.inputs = [
|
|
{
|
|
label: 'Vector Store Index',
|
|
name: 'vectorStoreIndex',
|
|
type: 'VectorStoreIndex'
|
|
},
|
|
{
|
|
label: 'Tool Name',
|
|
name: 'toolName',
|
|
type: 'string',
|
|
description: 'Tool name must be small capital letter with underscore. Ex: my_tool'
|
|
},
|
|
{
|
|
label: 'Tool Description',
|
|
name: 'toolDesc',
|
|
type: 'string',
|
|
rows: 4
|
|
}
|
|
]
|
|
}
|
|
|
|
async init(nodeData: INodeData): Promise<any> {
|
|
const vectorStoreIndex = nodeData.inputs?.vectorStoreIndex as VectorStoreIndex
|
|
const toolName = nodeData.inputs?.toolName as string
|
|
const toolDesc = nodeData.inputs?.toolDesc as string
|
|
const queryEngineTool = {
|
|
queryEngine: vectorStoreIndex.asQueryEngine({
|
|
preFilters: {
|
|
...(vectorStoreIndex as any).metadatafilter
|
|
}
|
|
}),
|
|
metadata: {
|
|
name: toolName,
|
|
description: toolDesc
|
|
},
|
|
vectorStoreIndex
|
|
}
|
|
|
|
return queryEngineTool
|
|
}
|
|
}
|
|
|
|
module.exports = { nodeClass: QueryEngine_Tools }
|