mirror of
https://github.com/farcasclaudiu/Flowise.git
synced 2026-06-28 17:01:00 +03:00
Anthony Bryan Gavilan Vinces
a7c1ab881c
* added: Neo4j database connectivity, Neo4j credentials, supports the usage of the GraphCypherQaChain node and modifies the FewShotPromptTemplate node to handle variables from the prefix field. * Merge branch 'main' of github.com:FlowiseAI/Flowise into feature/graphragsupport * revert pnpm-lock.yaml * add: neo4j package * Refactor GraphCypherQAChain: Update version to 1.0, remove memory input, and enhance prompt handling - Changed version from 2.0 to 1.0. - Removed the 'Memory' input parameter from the GraphCypherQAChain. - Made 'cypherPrompt' optional and improved error handling for prompt validation. - Updated the 'init' and 'run' methods to streamline input processing and response handling. - Enhanced streaming response logic based on the 'returnDirect' flag. * Refactor GraphCypherQAChain: Simplify imports and update init method signature - Consolidated import statements for better readability. - Removed the 'input' and 'options' parameters from the 'init' method, streamlining its signature to only accept 'nodeData'. * add output, format final response, fix optional inputs --------- Co-authored-by: Henry <hzj94@hotmail.com>
81 lines
2.4 KiB
TypeScript
81 lines
2.4 KiB
TypeScript
import { getBaseClasses, getCredentialData } from '../../../src/utils'
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import { ICommonObject, INode, INodeData, INodeParams } from '../../../src/Interface'
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import { Neo4jGraph } from '@langchain/community/graphs/neo4j_graph'
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class Neo4j_Graphs implements INode {
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label: string
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name: string
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version: number
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type: string
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icon: string
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category: string
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description: string
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baseClasses: string[]
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credential: INodeParams
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inputs: INodeParams[]
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constructor() {
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this.label = 'Neo4j'
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this.name = 'Neo4j'
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this.version = 1.0
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this.type = 'Neo4j'
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this.icon = 'neo4j.svg'
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this.category = 'Graph'
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this.description = 'Connect with Neo4j graph database'
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this.baseClasses = [this.type, ...getBaseClasses(Neo4jGraph)]
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this.credential = {
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label: 'Connect Credential',
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name: 'credential',
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type: 'credential',
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credentialNames: ['neo4jApi']
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}
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this.inputs = [
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{
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label: 'Database',
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name: 'database',
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type: 'string',
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placeholder: 'neo4j',
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optional: true
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},
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{
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label: 'Timeout (ms)',
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name: 'timeoutMs',
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type: 'number',
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default: 5000,
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optional: true
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},
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{
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label: 'Enhanced Schema',
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name: 'enhancedSchema',
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type: 'boolean',
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default: false,
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optional: true
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}
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]
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}
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async init(nodeData: INodeData, _: string, options: ICommonObject): Promise<any> {
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const database = nodeData.inputs?.database as string
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const timeoutMs = nodeData.inputs?.timeoutMs as number
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const enhancedSchema = nodeData.inputs?.enhancedSchema as boolean
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const credentialData = await getCredentialData(nodeData.credential ?? '', options)
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const neo4jConfig = {
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url: credentialData?.url,
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username: credentialData?.username,
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password: credentialData?.password
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}
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const neo4jGraph = await Neo4jGraph.initialize({
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...neo4jConfig,
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...(database && { database }),
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...(timeoutMs && { timeoutMs }),
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...(enhancedSchema && { enhancedSchema })
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})
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return neo4jGraph
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}
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}
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module.exports = { nodeClass: Neo4j_Graphs }
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