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Merge pull request #22 from FlowiseAI/feature/SQLDatabaseChain
Feature/SQLDatabaseChain
This commit is contained in:
Henry Heng
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import { INode, INodeData, INodeParams } from '../../../src/Interface'
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import { SqlDatabaseChain } from 'langchain/chains'
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import { getBaseClasses } from '../../../src/utils'
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import { DataSource } from 'typeorm'
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import { SqlDatabase } from 'langchain/sql_db'
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import { BaseLLM } from 'langchain/llms/base'
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class SqlDatabaseChain_Chains implements INode {
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label: string
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name: string
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type: string
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icon: string
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category: string
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baseClasses: string[]
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description: string
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inputs: INodeParams[]
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constructor() {
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this.label = 'Sql Database Chain'
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this.name = 'sqlDatabaseChain'
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this.type = 'SqlDatabaseChain'
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this.icon = 'sqlchain.svg'
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this.category = 'Chains'
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this.description = 'Answer questions over a SQL database'
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this.baseClasses = [this.type, ...getBaseClasses(SqlDatabaseChain)]
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this.inputs = [
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{
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label: 'LLM',
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name: 'llm',
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type: 'BaseLLM'
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},
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{
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label: 'Database',
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name: 'database',
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type: 'options',
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options: [
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{
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label: 'SQlite',
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name: 'sqlite'
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}
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],
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default: 'sqlite'
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},
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{
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label: 'Database File Path',
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name: 'dbFilePath',
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type: 'string',
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placeholder: 'C:/Users/chinook.db'
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}
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]
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}
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async init(nodeData: INodeData): Promise<any> {
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const databaseType = nodeData.inputs?.database
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const llm = nodeData.inputs?.llm as BaseLLM
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const dbFilePath = nodeData.inputs?.dbFilePath
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const datasource = new DataSource({
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type: databaseType,
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database: dbFilePath
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})
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const db = await SqlDatabase.fromDataSourceParams({
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appDataSource: datasource
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})
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const chain = new SqlDatabaseChain({
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llm,
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database: db
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})
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return chain
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}
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async run(nodeData: INodeData, input: string): Promise<string> {
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const chain = nodeData.instance as SqlDatabaseChain
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const res = await chain.run(input)
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return res
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}
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}
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module.exports = { nodeClass: SqlDatabaseChain_Chains }
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@@ -0,0 +1,7 @@
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<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-sql" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
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<path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
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<path d="M12 8a2 2 0 0 1 2 2v4a2 2 0 1 1 -4 0v-4a2 2 0 0 1 2 -2z"></path>
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<path d="M17 8v8h4"></path>
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<path d="M13 15l1 1"></path>
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<path d="M3 15a1 1 0 0 0 1 1h2a1 1 0 0 0 1 -1v-2a1 1 0 0 0 -1 -1h-2a1 1 0 0 1 -1 -1v-2a1 1 0 0 1 1 -1h2a1 1 0 0 1 1 1"></path>
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</svg>
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After Width: | Height: | Size: 560 B |
@@ -0,0 +1,163 @@
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{
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"description": "Answer questions over a SQL database",
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"nodes": [
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{
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"width": 300,
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"height": 424,
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"id": "sqlDatabaseChain_0",
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"position": {
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"x": 1271.2742585099204,
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"y": 232.91561199714107
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},
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"type": "customNode",
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"data": {
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"id": "sqlDatabaseChain_0",
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"label": "Sql Database Chain",
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"name": "sqlDatabaseChain",
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"type": "SqlDatabaseChain",
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"baseClasses": ["SqlDatabaseChain", "BaseChain"],
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"category": "Chains",
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"description": "Answer questions over a SQL database",
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"inputParams": [
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{
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"label": "Database",
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"name": "database",
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"type": "options",
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"options": [
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{
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"label": "SQlite",
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"name": "sqlite"
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}
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],
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"default": "sqlite"
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},
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{
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"label": "Database File Path",
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"name": "dbFilePath",
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"type": "string",
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"placeholder": "C:/Users/chinook.db"
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}
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],
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"inputAnchors": [
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{
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"label": "LLM",
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"name": "llm",
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"type": "BaseLLM",
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"id": "sqlDatabaseChain_0-input-llm-BaseLLM"
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}
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],
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"inputs": {
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"llm": "{{openAI_0.data.instance}}",
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"database": "sqlite",
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"dbFilePath": ""
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},
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"outputAnchors": [
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{
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"id": "sqlDatabaseChain_0-output-sqlDatabaseChain-SqlDatabaseChain|BaseChain",
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"name": "sqlDatabaseChain",
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"label": "SqlDatabaseChain",
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"type": "SqlDatabaseChain | BaseChain"
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}
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],
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"selected": false
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},
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"selected": false,
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"positionAbsolute": {
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"x": 1271.2742585099204,
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"y": 232.91561199714107
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},
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"dragging": false
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},
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{
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"width": 300,
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"height": 472,
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"id": "openAI_0",
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"position": {
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"x": 867.8574087065126,
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"y": 209.58625096303308
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},
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"type": "customNode",
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"data": {
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"id": "openAI_0",
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"label": "OpenAI",
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"name": "openAI",
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"type": "OpenAI",
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"baseClasses": ["OpenAI", "BaseLLM", "BaseLanguageModel"],
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"category": "LLMs",
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"description": "Wrapper around OpenAI large language models",
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"inputParams": [
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{
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"label": "OpenAI Api Key",
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"name": "openAIApiKey",
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"type": "password"
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},
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{
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"label": "Model Name",
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"name": "modelName",
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"type": "options",
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"options": [
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{
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"label": "text-davinci-003",
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"name": "text-davinci-003"
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},
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{
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"label": "text-davinci-002",
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"name": "text-davinci-002"
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},
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{
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"label": "text-curie-001",
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"name": "text-curie-001"
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},
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{
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"label": "text-babbage-001",
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"name": "text-babbage-001"
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}
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],
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"default": "text-davinci-003",
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"optional": true
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},
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{
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"label": "Temperature",
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"name": "temperature",
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"type": "number",
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"default": 0.7,
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"optional": true
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}
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],
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"inputAnchors": [],
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"inputs": {
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"modelName": "text-davinci-003",
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"temperature": "0"
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},
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"outputAnchors": [
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{
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"id": "openAI_0-output-openAI-OpenAI|BaseLLM|BaseLanguageModel",
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"name": "openAI",
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"label": "OpenAI",
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"type": "OpenAI | BaseLLM | BaseLanguageModel"
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}
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],
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"selected": false
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},
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"selected": false,
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"positionAbsolute": {
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"x": 867.8574087065126,
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"y": 209.58625096303308
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},
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"dragging": false
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}
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],
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"edges": [
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{
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"source": "openAI_0",
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"sourceHandle": "openAI_0-output-openAI-OpenAI|BaseLLM|BaseLanguageModel",
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"target": "sqlDatabaseChain_0",
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"targetHandle": "sqlDatabaseChain_0-input-llm-BaseLLM",
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"type": "buttonedge",
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"id": "openAI_0-openAI_0-output-openAI-OpenAI|BaseLLM|BaseLanguageModel-sqlDatabaseChain_0-sqlDatabaseChain_0-input-llm-BaseLLM",
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"data": {
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"label": ""
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}
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}
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]
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}
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